Camden National (CAC) 10-K8 Mar 242023 FY Annual reportFinancial data

Company Profile

Cover

Cover - USD ($)	12 Months Ended
Cover - USD ($)	Dec. 31, 2023	Feb. 28, 2024	Jun. 30, 2023
Document Information [Line Items]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2023
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Entity File Number	0-28190
Entity Registrant Name	CAMDEN NATIONAL CORP
Entity Incorporation, State or Country Code	ME
Entity Tax Identification Number	01-0413282
Entity Address, Postal Zip Code	04843
Entity Address, Address Line One	2 Elm Street
Entity Address, City or Town	Camden
Entity Address, State or Province	ME
City Area Code	207
Local Phone Number	236-8821
Title of 12(b) Security	Common Stock, without par value
Trading Symbol	CAC
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Entity Shell Company	false
Entity Public Float			$ 438,245,610
Entity Common Stock, Shares Outstanding		14,566,850
Documents Incorporated by Reference	Certain information required in response to Items 10, 11, 12, 13 and 14 of Part III of this Form 10-K is incorporated by reference from Camden National Corporation’s Definitive Proxy Statement for the 2024 Annual Meeting of Shareholders pursuant to Regulation 14A of the General Rules and Regulations of the Commission.
Amendment Flag	false
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	FY
Entity Central Index Key	0000750686
Auditor Name	RSM US LLP
Auditor Location	Des Moines, Iowa
Auditor Firm ID	49
Document Financial Statement Error Correction [Flag]	false

Consolidated Statements Of Cond

Consolidated Statements Of Condition - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
ASSETS
Cash and due from banks	$ 77,649	$ 50,566
Interest-bearing deposits in other banks (including restricted cash)	22,155	24,861
Total cash, cash equivalents and restricted cash	99,804	75,427
Securities
Trading securities	4,647	3,990
Available-for-sale securities, at fair value (amortized cost of $702,937 and $796,960, respectively)	625,808	695,875
Held-to-maturity securities, at amortized cost (fair value of $510,595 and $506,193, respectively)	544,931	546,583
Other investments	15,394	12,713
Total investments	1,190,780	1,259,161
Loans held for sale, at fair value (book value of $10,152 and $5,259, respectively)	10,320	5,197
Loans	4,098,094	4,010,353
Less: allowance for credit losses on loans	(36,935)	(36,922)
Net loans	4,061,159	3,973,431
Goodwill	94,697	94,697
Core deposit intangible assets	971	1,563
Bank-owned life insurance	101,501	99,142
Premises and equipment, net	35,049	36,022
Deferred tax assets	42,226	50,217
Other assets	77,999	76,993
Total assets	5,714,506	5,671,850
Deposits
Non-interest checking	967,750	1,141,753
Interest checking	1,553,787	1,763,850
Savings and money market	1,364,401	1,439,622
Certificates of deposit	609,503	300,451
Brokered deposits	101,919	181,253
Total deposits	4,597,360	4,826,929
Short-term borrowings	485,607	265,176
Junior subordinated debentures	44,331	44,331
Accrued interest and other liabilities	92,144	84,136
Total liabilities	5,219,442	5,220,572
Commitments and contingencies (Note 11)
Shareholders' Equity
Common stock, no par value: authorized 40,000,000 shares, issued and outstanding 14,565,952 and 14,567,325 on December 31, 2023 and 2022, respectively	115,602	115,069
Retained earnings	481,014	462,164
Accumulated other comprehensive loss	(101,552)	(125,955)
Total shareholders’ equity	495,064	451,278
Total liabilities and shareholders’ equity	$ 5,714,506	$ 5,671,850

Consolidated Statements Of Co_2

Consolidated Statements Of Condition (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Statement of Financial Position [Abstract]
Debt Securities, Available-for-sale, Amortized Cost	$ 702,937	$ 796,960
Debt Securities, Held-to-maturity, Fair Value	510,595	506,193
Loans Held-for-sale, Fair Value Disclosure	$ 10,152	$ 5,259
Common Stock, no par value (dollars per share)	$ 0	$ 0
Common stock, authorized	40,000,000	40,000,000
Common stock, outstanding	14,565,952	14,567,325
Common stock, issued	14,565,952	14,567,325

Consolidated Statements Of Inco

Consolidated Statements Of Income - USD ($) $ in Thousands	12 Months Ended
Consolidated Statements Of Income - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Interest Income
Interest and fees on loans	$ 195,379	$ 144,709	$ 125,437
Taxable interest on investments	24,267	23,339	18,869
Nontaxable interest on investments	2,927	3,096	3,001
Dividend income	1,061	531	412
Other interest income	2,612	1,113	765
Total interest income	226,246	172,788	148,484
Interest Expense
Interest on deposits	78,884	20,305	7,920
Interest on borrowings	12,949	2,649	605
Interest on subordinated debentures	2,150	2,140	2,523
Total interest expense	93,983	25,094	11,048
Net interest income	132,263	147,694	137,436
Provision (credit) for credit losses	2,100	4,500	(3,190)
Net interest income after provision (credit) for credit losses	130,163	143,194	140,626
Non-Interest Income
Mortgage banking income, net	2,921	4,221	13,704
Brokerage and insurance commissions	4,650	4,147	3,913
Bank-owned life insurance	2,349	1,901	2,364
Net loss on sale of securities	(10,310)	(912)	0
Other income	4,303	4,011	3,507
Total non-interest income	31,034	40,702	49,735
Non-Interest Expenses
Salaries and employee benefits	60,009	62,019	61,007
Furniture, equipment and data processing	13,377	13,043	12,247
Net occupancy costs	7,674	7,578	7,532
Debit card expense	5,126	4,602	4,313
Consulting and professional fees	4,520	4,073	3,691
Regulatory assessments	3,413	2,338	2,074
Amortization of core deposit intangible assets	592	625	655
Other real estate owned and collection costs (recoveries), net	42	29	(101)
Other expenses	12,608	12,542	12,302
Total non-interest expense	107,361	106,849	103,720
Income before income tax expense	53,836	77,047	86,641
Income Tax Expense	10,453	15,608	17,627
Net Income	$ 43,383	$ 61,439	$ 69,014
Per Share Data
Basic earnings per share (in dollars per share)	$ 2.98	$ 4.18	$ 4.62
Diluted earnings per share (in dollars per share)	2.97	4.17	4.60
Cash dividends declared, per share (in dollars per share)	$ 1.68	$ 1.62	$ 1.48
Weighted average number of common shares outstanding	14,563,380	14,644,170	14,903,855
Diluted weighted average number of common shares outstanding	14,609,345	14,701,010	14,971,578
Debit Card
Non-Interest Income
Revenue	$ 12,613	$ 13,340	$ 13,105
Deposit Accounts
Non-Interest Income
Revenue	7,839	7,587	6,626
Fiduciary Services
Non-Interest Income
Revenue	$ 6,669	$ 6,407	$ 6,516

Consolidated Statements Of Comp

Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Statement of Comprehensive Income [Abstract]
Net Income	$ 43,383	$ 61,439	$ 69,014
Other comprehensive income (loss):
Net change in fair value on debt securities, net of tax	24,130	(130,366)	(30,483)
Net change in fair value on cash flow hedging derivatives, net of tax	205	7,670	2,847
Net change in other comprehensive income for supplemental executive retirement plan and other postretirement benefit plan, net of tax	68	2,970	667
Other comprehensive income (loss)	24,403	(119,726)	(26,969)
Comprehensive Income (Loss)	$ 67,786	$ (58,287)	$ 42,045

Consolidated Statements Of Chan

Consolidated Statements Of Changes In Shareholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Retained Earnings	Accumulated Other Comprehensive Loss
Beginning Balance (in shares) at Dec. 31, 2020		14,909,097
Beginning Balance at Dec. 31, 2020	$ 529,314	$ 131,072	$ 377,502	$ 20,740
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	69,014		69,014
Other comprehensive loss, net of tax	(26,969)			(26,969)
Stock-based compensation expense	2,381	$ 2,381
Exercise of stock options and issuance of vested share awards, net of repurchase for tax withholdings and tax benefit (shares)		48,790
Exercise of stock options and issuance of vested share awards, net of repurchase for tax withholdings and tax benefit	(263)	$ (263)
Common stock repurchased (in shares)		(217,931)
Stock Repurchased During Period, Value	(10,079)	$ (10,079)
Cash dividends declared	(22,104)		(22,104)
Ending Balance (in shares) at Dec. 31, 2021		14,739,956
Ending Balance at Dec. 31, 2021	541,294	$ 123,111	424,412	(6,229)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	61,439		61,439
Other comprehensive loss, net of tax	(119,726)			(119,726)
Stock-based compensation expense	2,553	$ 2,553
Exercise of stock options and issuance of vested share awards, net of repurchase for tax withholdings and tax benefit (shares)		52,614
Exercise of stock options and issuance of vested share awards, net of repurchase for tax withholdings and tax benefit	(355)	$ (355)
Common stock repurchased (in shares)		(225,245)
Stock Repurchased During Period, Value	(10,240)	$ (10,240)
Cash dividends declared	(23,687)		(23,687)
Ending Balance (in shares) at Dec. 31, 2022		14,567,325
Ending Balance at Dec. 31, 2022	451,278	$ 115,069	462,164	(125,955)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income	43,383		43,383
Other comprehensive loss, net of tax	24,403			24,403
Stock-based compensation expense	2,793	$ 2,793
Exercise of stock options and issuance of vested share awards, net of repurchase for tax withholdings and tax benefit (shares)		64,319
Exercise of stock options and issuance of vested share awards, net of repurchase for tax withholdings and tax benefit	(260)	$ (260)
Common stock repurchased (in shares)		(65,692)
Stock Repurchased During Period, Value	(2,000)	$ (2,000)
Cash dividends declared	(24,533)		(24,533)
Ending Balance (in shares) at Dec. 31, 2023		14,565,952
Ending Balance at Dec. 31, 2023	$ 495,064	$ 115,602	$ 481,014	$ (101,552)

Consolidated Statements Of Ch_2

Consolidated Statements Of Changes In Shareholders' Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Statement of Stockholders' Equity [Abstract]
Cash dividends declared, per share (in dollars per share)	$ 1.68	$ 1.62	$ 1.48

Consolidated Statements Of Cash

Consolidated Statements Of Cash Flows - USD ($)	12 Months Ended
Consolidated Statements Of Cash Flows - USD ($)	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Operating Activities
Net Income	$ 43,383,000	$ 61,439,000	$ 69,014,000
Adjustments to reconcile net income to net cash provided by operating activities:
Originations of mortgage loans held for sale	(189,701,000)	(152,170,000)	(436,740,000)
Proceeds from the sale of mortgage loans	186,457,000	156,100,000	484,718,000
Gain on sale of mortgage loans, net of origination costs	(1,649,000)	(3,403,000)	(13,265,000)
Provision (credit) for credit losses	2,100,000	4,500,000	(3,190,000)
Depreciation and amortization expense	3,371,000	3,490,000	3,708,000
Investment securities amortization and accretion, net	2,312,000	3,831,000	6,722,000
Stock-based compensation expense	2,793,000	2,553,000	2,381,000
Amortization of core deposit intangible assets	592,000	625,000	655,000
Purchase accounting accretion, net	(145,000)	(280,000)	(699,000)
Net decrease in derivative collateral posted to counterparties	0	30,690,000	26,760,000
Net increase (decrease) in derivative collateral received from counterparties	10,040,000	1,140,000	(60,000)
Net gain on sale of premises and equipment	0	(204,000)	0
Net loss on sale of investment securities	10,310,000	912,000	0
Deferred income tax expense (benefit)	1,307,000	1,785,000	(637,000)
(Increase) decrease in other assets	(9,193,000)	(4,063,000)	3,306,000
Increase (decrease) in other liabilities	5,531,000	(1,762,000)	43,000
Net cash provided by operating activities	67,508,000	105,183,000	142,716,000
Investing Activities
Proceeds from sales	126,766,000	36,280,000	0
Proceeds from sales of available-for-sale debt securities	73,296,000	174,497,000	321,625,000
Purchase of available-for-sale debt securities	(116,147,000)	(95,421,000)	(758,847,000)
Proceeds from maturities of held-to-maturity securities	25,065,000	22,896,000	0
Purchase of held-to-maturity securities	20,981,000	42,748,000	0
Net increase in loans	(89,726,000)	(579,363,000)	(211,745,000)
Purchase of Federal Home Loan Bank stock	(31,211,000)	(43,928,000)	(68,000)
Proceeds from sale of Federal Home Loan Bank	28,531,000	41,495,000	1,329,000
Purchase of premises and equipment	(2,622,000)	(2,183,000)	(1,852,000)
Proceeds from the sale of premises and equipment	0	466,000	0
Proceeds from sale of other real estate owned	0	287,000	465,000
Net cash used in investing activities	(7,029,000)	(487,722,000)	(649,093,000)
Financing Activities
Net (decrease) increase in deposits	(229,569,000)	218,040,000	603,645,000
Net proceeds from borrowings less than 90 days	85,431,000	53,568,000	49,169,000
Proceeds from Bank Term Funding Program	135,000,000	0	0
Repayments of Federal Home Loan Bank long-term advances	0	0	(25,000,000)
Repayment of subordinated debt	0	0	(15,000,000)
Common stock repurchases	(2,000,000)	(10,240,000)	(10,090,000)
Exercise of stock options and issuance of restricted stock, net of repurchase for tax withholdings	(260,000)	(355,000)	(263,000)
Cash dividends paid on common stock	(24,536,000)	(23,512,000)	(21,081,000)
Finance lease payments	(168,000)	(160,000)	(152,000)
Net cash (used in) provided by financing activities	(36,102,000)	237,341,000	581,228,000
Net increase (decrease) in cash, cash equivalents and restricted cash	24,377,000	(145,198,000)	74,851,000
Cash, cash equivalents and restricted cash at beginning of year	75,427,000	220,625,000	145,774,000
Cash, cash equivalents and restricted cash at end of year	99,804,000	75,427,000	220,625,000
Supplemental information
Transfer from available-for-sale securities to held-to-maturity securities (Note 2)	0	520,335,000	0
Interest paid	92,353,000	24,547,000	11,192,000
Income taxes paid	11,147,000	13,237,000	18,502,000
Cash dividends declared, not paid	6,131,000	6,134,000	5,959,000
Transfer from premises to other real estate owned	0	0	204,000
Change in fair value hedges presented within residential real estate loans and other assets	$ 968,000	$ 0	$ 0

Business and Summary of Signifi

Business and Summary of Significant Accounting Policies	12 Months Ended
Business and Summary of Significant Accounting Policies	Dec. 31, 2023
Accounting Policies [Abstract]
Business and Summary of Significant Accounting Policies	BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Acronyms and Abbreviations. The acronyms and abbreviations identified below are used in the notes to the consolidated financial statements. The following is provided to aid the reader and provide a reference page when reviewing the notes to the consolidated financial statements. Acronym Description Acronym Description AFS: Available-for-sale GAAP: Generally accepted accounting principles in the United States ALCO: Asset/Liability Committee GDP: Gross domestic product ACL: Allowance for credit losses HTM: Held-to-maturity AOCI: Accumulated other comprehensive income (loss) LGD: Loss given default ASC: Accounting Standards Codification LIBOR: London Interbank Offered Rate ASU: Accounting Standards Update LTIP: Long-Term Performance Share Plan Bank: Camden National Bank, a wholly-owned subsidiary of Camden National Corporation Management ALCO: Management Asset/Liability Committee BOLI: Bank-owned life insurance MBS: Mortgage-backed security Board ALCO: Board of Directors' Asset/Liability Committee MSPP: Management Stock Purchase Plan BTFP: Bank Term Funding Program, introduced by the Federal Reserve Bank in March 2023 N/A: Not applicable CCTA: Camden Capital Trust A, an unconsolidated entity formed by Camden National Corporation N.M.: Not meaningful CD: Certificate of deposits OCC: Office of the Comptroller of the Currency CECL: Current Expected Credit Losses OCI: Other comprehensive income (loss) Company: Camden National Corporation OREO: Other real estate owned CMO: Collateralized mortgage obligation PD: Probability of default CUSIP: Committee on Uniform Securities Identification Procedures ROU: Right-of-use DCRP: Defined Contribution Retirement Plan SBA: U.S. Small Business Administration EPS: Earnings per share SBA PPP: U.S. Small Business Administration Paycheck Protection Program FASB: Financial Accounting Standards Board SERP: Supplemental executive retirement plans FDIC: Federal Deposit Insurance Corporation SOFR: Secured Overnight Financing Rate FHLBB: Federal Home Loan Bank of Boston TDR: Troubled-debt restructured loan FHLMC: Federal Home Loan Mortgage Corporation UBCT: Union Bankshares Capital Trust I, an unconsolidated entity formed by Union Bankshares Company that was subsequently acquired by Camden National Corporation FRB: Federal Reserve System Board of Governors U.S.: United States of America FRBB: Federal Reserve Bank of Boston General Business. Camden National Corporation, a Maine corporation (the “Company”), is the bank holding company for Camden National Bank (the “Bank”) and is headquartered in Camden, Maine. The primary business of the Company is to attract deposits from and to extend loans to consumer, institutional, municipal, non-profit and commercial customers. The Company, through the Bank, offers commercial and consumer banking products and services, and through Camden Financial Consultants, a division of the Bank, and Camden National Wealth Management, a department of the Bank, offers brokerage and insurance services as well as investment management and fiduciary services. The Bank's deposits are insured by the FDIC, subject to regulatory limits. Principles of Consolidation . The accompanying consolidated financial statements include the accounts of the Company and the Bank (which includes the consolidated accounts of Healthcare Professional Funding Corporation (“HPFC”) and Property A, Inc.). All intercompany accounts and transactions have been eliminated in consolidation. Assets held by the Bank in a fiduciary capacity, through Camden National Wealth Management, are not assets of the Company and, therefore, are not included in the consolidated statements of condition. The Company also owns 100% of the common stock of CCTA and UBCT. These entities are unconsolidated subsidiaries of the Company. Use of Estimates . The preparation of the financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting periods. Actual results could vary from these estimates as a result of changing conditions and future events. Several estimates are particularly critical and are susceptible to significant near-term change, such as the allowance for credit losses (“ACL”), including the allowance for loan losses, off-balance sheet credit exposures, and AFS and HTM debt securities; the accounting for business combinations including subsequent impairment analyses for goodwill and other intangible assets; accounting for income taxes; and postretirement benefits. Subsequent Events . The Company has evaluated events and transactions subsequent to December 31, 2023 for potential recognition or disclosure and has disclosed such events and transactions in Note 2, Note 9 and Note 14 of the consolidated financial statements. Significant Concentration of Credit Risk. The Company makes loans primarily to customers in Maine, Massachusetts and New Hampshire. Although it has a diversified loan portfolio, a large portion of the Company's loans are secured by commercial or residential real estate and are subject to real estate market volatility within these states. Furthermore, the debtors' ability to honor their contracts is highly dependent upon other economic factors throughout Maine, Massachusetts and New Hampshire. The Company does not generally engage in non-recourse lending and typically will require the principals of any commercial borrower to obligate themselves personally on the loan. Refer to Note 3 for further discussion of credit concentrations. Cash, Cash Equivalents and Restricted Cash . For the purpose of reporting, cash and cash equivalents consist of cash on hand and amounts due from banks. In March 2020, the FRB reduced its reserve requirement ratios to 0%, effectively eliminating cash reserve requirements for all depository institutions. Certain cash balances will be designated as restricted as required by certain contracts with unrelated third parties. Investments. Debt investments for which the Company has the positive intent and ability to hold to maturity are classified as HTM and recorded at amortized cost on the consolidated statements of condition. Debt investments that are not classified as HTM or trading are classified as AFS and are carried at fair value on the Company's consolidated statements of condition with subsequent changes to fair value recorded within AOCI, net of tax. Trading securities and equity investments with a readily determinable fair value are carried at fair value on the Company's consolidated statements of condition, with the change in fair value recognized between periods recognized within net income on the consolidated statements of income. Purchase premiums and discounts are recognized in interest income on the consolidated statements of income using the interest method over the period to maturity or issuer call option date, if earlier, and are recorded on the trade date. Upon sale of an investment security, the realized gain or loss on the sale is recognized within non-interest income on the consolidated statements of income. The cost basis of our investments sold is determined using the specific identification method. ACL on (or Write-off of) AFS Debt Securities. Management assesses its AFS debt securities in an unrealized loss position for the following: (i) whether it intends to sell the security, or (ii) it is more likely than not that it will be required to sell the security before recovery of its amortized cost basis. If either of the criteria regarding intent or requirement to sell is met, the security’s amortized cost basis is written down to fair value through net income. For AFS debt securities that do not meet either of the two criteria, management evaluates whether the decline in fair value resulted from credit losses or other factors. In making this assessment, management considers the following: (i) the extent to which fair value is less than amortized cost, (ii) credit rating of the security, (iii) macroeconomic trends of the industry specific to the security, and (iv) any other adverse conditions specifically related to the security, among other factors. If this assessment indicates that a credit loss exists, the present value of cash flows expected to be collected from the security are compared to the amortized cost basis of the security. If the present value of cash flows expected to be collected is less than the amortized cost basis, a credit loss exists and an allowance on AFS debt securities is recorded for the credit loss, limited by the amount that the fair value is less than the amortized cost basis. When assessing an AFS debt security for credit loss, securities with identical CUSIPs are pooled together to assess for impairment using the average cost basis. Any impairment that has not been recorded through an allowance is recognized in AOCI. A change in the ACL on AFS debt securities or write-off of an AFS debt security, which may be in full or a portion thereof, is recorded as expense (credit) within provision for credit losses on the consolidated statements of income. Losses are charged against the allowance when management believes the uncollectibility of an AFS debt security is confirmed or when either of the criteria regarding intent or requirement to sell is met. As of December 31, 2023 and 2022, there was no allowance carried on the Company's AFS debt securities nor were there any permanent write-offs for the years ended December 31, 2023, 2022, or 2021. Refer to Note 2 of the consolidated financial statements for further discussion. ACL on (or Write-off of) HTM Debt Securities. The Company estimates expected credit losses on its HTM debt securities and carry an allowance for such. Management measures expected credit losses on HTM debt securities on a collective basis by major security types that share similar risk characteristics, which may include, but is not limited to, credit ratings, financial asset type, collateral type, size, effective interest rate, term, geographical location, industry, and vintage. The estimate of expected credit losses on the HTM portfolio is based on the expected cash flows of each individual CUSIP over its contractual life and considers historical credit loss information, current conditions and reasonable and supportable forecasts. Under ASU 2016-13 the Company has the ability to exclude certain securities when the historical credit loss information, adjusted for current conditions and forecasts, resulting in zero risk of nonpayment of the amortized cost basis of the security. The Company has evaluated and determined zero risk of nonpayment on all securities guaranteed by the U.S government agencies. Given the rarity of municipal and corporate bond defaults and losses, the Company will utilize external third party loss forecast models as the sole source of municipal and corporate bond default and loss rates. As with the loan portfolio, cash flows are modeled over a reasonable and supportable forecast period and then revert to the long-term average economic conditions on a straight line basis. Management may exercise discretion to make adjustments based on various qualitative factors. An HTM debt security is written-off in the period in which a determination is made that all or a portion of the financial asset is uncollectible. Any previously recorded allowance, if any, is reversed and then the amortized cost basis is written-down to the amount deemed to be collectible, if any. A change in the ACL on HTM debt securities or write-off of an HTM debt security, which may be in full or a portion thereof, is recorded as expense (credit) within provision for credit losses on the consolidated statements of income. FHLBB and FRBB Stock. The Company, through the Bank, is a member of the FHLBB and FRBB, and, as a member, is required to hold a certain amount of FHLBB and FRB common stock. These equity stocks are non-marketable and are reported at cost within other investments on the consolidated statements of condition. The Company evaluates its FHLBB and FRB common stock for impairment based on the ultimate recoverability of the par value rather than by recognizing temporary declines in value. Loans Held for Sale. The Company has elected the fair value option for loans classified as held for sale on the consolidated statements of condition. Designation of loans as held for sale is determined based on intent and is generally completed as the loans are underwritten. The fair value for loans held for sale is determined using quoted secondary market prices. Management consistently evaluates the Company's loan portfolio in conjunction with asset/liability management practices, and will opt to sell certain residential mortgage loans to manage the Company's interest rate exposure and for other business purposes, including generating fee income through mortgage sale gains and managing its liquidity position. Loans Held for Investment and Acquired Loans . Loans held for investment are reported at amortized cost, adjusted for any partial charge-offs and net of any deferred loan fees or costs. Interest income is accrued based upon the daily principal amount outstanding, except for loans on non-accrual status. Loan fees and certain direct origination costs are deferred and amortized into interest income over the contractual term of the loan using the level-yield method. When a loan is paid off, the unamortized portion is recognized in interest income. Loans acquired through a business or asset purchase are reported at fair value, as of acquisition date. Interest income is accrued based upon the daily principal amount outstanding and is then further adjusted by the accretion of any discount or amortization of any premium associated with the loan that was recognized based on the acquisition date fair value using the level-yield method. When a loan is paid off, the unamortized portion is recognized in interest income. A loan is classified as non-accrual generally when it becomes 90 days past due as to interest or principal payments, or sooner if management considers such action to be prudent. All previously accrued but unpaid interest on non-accrual loans is reversed from interest income in the period in which the loan is considered delinquent and the amortization of any unamortized net deferred origination loan fees/costs stops. Interest payments received on non-accrual loans are applied as a reduction of principal. A loan remains on non-accrual status until all principal and interest amounts contractually due are brought current and future payments are reasonably assured. Should a loan transition from non-accrual to accrual, the unrecognized interest earned during the period the loan was on non-accrual and unamortized deferred origination fees and costs are recognized over the remaining contractual life of the loan using the level-yield method. ACL on Loans. The ACL on loans is established based upon the Company's current estimate of expected lifetime credit losses on loans measured at amortized cost, which is comprised of the unpaid principal balance of the loan, net deferred loan fees (costs), acquired premium (discount), and any write-downs previously taken on the loan. The ACL on loans is increased by charges to provision for credit losses and reduced by charge-offs, net of recoveries. Management evaluates the appropriateness of the ACL on loans quarterly. This evaluation is inherently subjective as it requires material estimates that may be susceptible to significant change from period to period. The ACL on loans is presented on the consolidated statements of condition. Loans past due 30 days or more are considered delinquent. In general, secured loans that are delinquent for 90 consecutive days are placed on non-accrual status and may be subject to individual loss assessment in accordance with established internal policy. In general, unsecured loans that are delinquent for 90 consecutive days are charged-off. Effective January 1, 2023, the Company adopted prospectively ASU No. 2022-02, Financial Instruments - Credit Losses (Topic 326): Troubled Debt Restructurings and Vintage Disclosures ("ASU 2022-02"). ASU 2022-02 provided guidance that eliminated the recognition and measurement of TDRs. Following the adoption of this guidance, the Company evaluates all loan modifications made to borrowers experiencing financial difficulty according to the accounting guidance for loan refinancing and restructuring to determine whether such loan modification should be accounted for as a new loan or a continuation of the existing loan. All loans previously recognized as a TDR will continue to be classified as such until the loan is paid off. Refer to Note 3 of the consolidated financial statements for further discussion. The ACL on loans reduces the loan portfolio to the net amount expected to be collected, and represents the expected losses over the life of all loans at the reporting date. The allowance incorporates forward-looking information and applies a reversion methodology beyond the reasonable and supportable forecast. The ACL on loans represents the Company's estimated risk of loss within its loan portfolio as of the reporting date. To appropriately measure expected credit losses, management disaggregates the loan portfolio into pools of similar risk characteristics ( i.e. “segments”). The Company utilizes a discounted cash flow approach to calculate the expected loss for each segment. Within the discounted cash flow model, a PD and LGD assumption is applied to calculate the expected loss for each segment. PD is the probability the asset will default within a given timeframe and LGD is the percentage of assets not expected to be collected due to default. The Company's PD and LGD assumptions may be derived from internal historical default and loss experience or from external data where there are not statistically meaningful loss events for a loan segment or it does not have default and loss data that covers a full economic cycle. In 2023 the Company made a policy election to apply a 100% PD for any loan that meets it’s definition of default, which is defined as loans in non-accrual, loans partially charge-off or loans past due for more than 90 days. The impact to the ACL at December 31, 2023 was not material to the Company’s consolidated financial statements. As of December 31, 2023 and 2022, the primary macroeconomic drivers used within the discounted cash flow model included forecasts of Maine Unemployment, changes in Maine and National GDP, and changes in the Maine Housing Price Index. Management monitors and assesses its macroeconomic drivers at least annually (generally in the fourth quarter) to determine if or that they continue to be the most predictive indicator of losses within the Company’s loan portfolio, and these macroeconomic drivers may change from time to time. To determine its reasonable and supportable forecast, management may leverage macroeconomic forecasts obtained from various reputable sources, which may include, but is not limited to, the Federal Open Market Committee forecast and other publicly available forecasts from well recognized, leading economists or firms. The Company’s reasonable and supportable forecast period generally ranges from one to three years, depending on the facts and circumstances of the current state of the economy, portfolio segment and management’s judgement of what can be reasonably supported. The model reversion period generally ranges from one to six years, and it also depends on the current state of the economy and management’s judgments of such. Management monitors and assesses the forecast and reversion period at least annually. The ACL on loans is calculated over a loan’s contractual life. For term loans, the contractual life is calculated based on the maturity date. For commercial revolving loans with no stated maturity date, the contractual life is calculated based on the internal review date. For all other revolving loans, the contractual life is based on either the estimated maturity date or a default date. The contractual term does not include expected extension, renewals or modifications. For purposes of determining the ACL on loans, the Company disaggregates its loans into portfolio segments. Each portfolio segment possesses unique risk characteristics that are considered when determining the appropriate level of allowance. In calculating the ACL on loans, the contractual life of a loan must be adjusted for prepayments to arrive at expected cash flows. The Company models term loans using an annualized prepayment. When the Company has a specific expectation of differing payment behavior for a given loan, the loan may be evaluated individually. For revolving loans that do not have a principal payment schedule, a curtailment rate is factored into the cash flow. The ACL on loans evaluation may also consider various qualitative factors, such as: (i) actual or expected changes in economic trends and conditions, (ii) changes in the value of underlying collateral for loans, (iii) changes to lending policies, underwriting standards and/or management personnel performing such functions, (iv) delinquency and other credit quality trends, (v) credit risk concentrations, if any, (vi) changes to the nature of the Company's business impacting the loan portfolio, (vii) and other external factors, that may include, but are not limited to, results of internal loan reviews, examinations by bank regulatory agencies, or other such events such as a natural disaster. Certain loans greater than $500,000 are individually evaluated for estimated credit losses, including those (i) are on non-accrual, (ii) a modified loan to a borrower experiencing financial difficulty to be disclosed under ASU 2022-02, or (iii) that have other unique characteristics differing from the segment. Specific reserves are established when appropriate for such loans based on the present value of expected future cash flows of the loan or the estimated realizable value of the collateral, if any. Management may also adjust its assumptions to account for differences between expected and actual losses from period-to-period. The variability of management’s assumptions could alter the ACL on loans materially and impact future results of operations and financial condition. The loss estimation models and methods used to determine the allowance for credit losses are continually refined and enhanced. Accrued Interest. Accrued interest receivable balances are presented within other assets on the consolidated statements of condition, and excluded from the measurement of the ACL, including investments and loans. Accrued interest receivable is written-off by reversing previously recognized interest income. The Company has a robust policy in place to write-off accrued interest when a loan is placed on non-accrual. For loans, write-off typically occurs when a loan has been in default for 90 days or more. Goodwill and Core Deposit Intangible Assets . Goodwill represents the price paid in an acquisition that is in excess of the fair value of the net assets acquired. Goodwill is not subject to amortization but rather is evaluated at least annually for impairment, or as events and circumstances dictate, at the reporting unit level, and for which the Company has determined it has a single reporting unit. Any impairment is charged to non-interest expense on the consolidated statements of income. The Company evaluates goodwill for impairment annually as of November 30 th , or more frequently as warranted by external and/or internal factors. The Company may utilize a qualitative analysis and/or a quantitative analysis to evaluate goodwill for impairment. The Company has the option to by-pass the qualitative analysis for any given year and perform the quantitative analysis. Using a qualitative analysis to assess goodwill for impairment, the Company will consider various factors to determine if it is more-likely-than-not that its carrying value of its reporting unit exceeds its fair value. These factors include, but are not limited to, the overall macro-economic environment; industry economic and regulatory environment; and company specific factors, including, but not limited to, performance, Company common stock share price, competition and/or significant changes in senior management. Should the Company determine it is more-likely-than-not that the carrying value of its reporting unit exceeds its fair value, then it would then perform the next step of the goodwill impairment test, which is a quantitative analysis. If the Company were to determine it is not more-likely-than-not that the carrying value of its reporting unit exceeds its fair value, the Company would have completed its goodwill impairment evaluation and concluded goodwill was not impaired. After performing the qualitative analysis and determining it is more-likely-than-not that the carrying value of its reporting unit exceeds its fair value or if the Company by-passed the qualitative analysis, it would perform a quantitative analysis to determine if the carrying value of its reporting unit exceeds its fair value. Alternatively, the Company may bypass the qualitative analysis and use a quantitative analysis. In completing the quantitative analysis, the Company may use various valuation techniques such as a discounted cash flow model, a comparative market transaction multiple approach and/or other valuation methods to determine the reporting unit's fair value. Goodwill impairment is recognized the extent the carrying value of a reporting unit exceeds its fair value. The Company completed its testing for impairment of goodwill for the years ended December 31, 2023, 2022 and 2021 and concluded goodwill was not impaired. Refer to Note 4 of the consolidated financial statements for further details. Core deposit intangible assets represents the estimated value of acquired customer relationships and is amortized on a straight-line basis over the estimated life of those relationships. Core deposit intangibles are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount may not be recoverable. If necessary, management will test the core deposit intangibles for impairment by comparing their carrying value to the expected undiscounted cash flows of the assets. If the undiscounted cash flows of the intangible assets exceed their carrying value then the intangible assets are deemed to be fully recoverable and not impaired. However, if the undiscounted cash flows of the intangible assets are less than their carrying value then management must compare the fair value of the intangible assets to its carrying value. If the fair value of the intangible assets exceeds their carrying value then the intangible assets are not impaired. If the fair value of the intangible assets is less than its carrying value, then an impairment charge is recorded to mark the carrying value of the intangible assets to fair value. For the years ended December 31, 2023, 2022 and 2021, there were no events or changes in circumstances that indicated the carrying amount may not be recoverable. BOLI . BOLI represents the cash surrender value of life insurance policies on the lives of certain active and retired employees where the Company is the beneficiary and is recorded as an asset on the consolidated statements of condition. Increases in the cash surrender values of the policies, as well as death benefits received, net of any cash surrender value, are recorded in non-interest income on the consolidated statements of income, and are not subject to income taxes. The Company reviews the financial strength of the insurance carriers prior to the purchase of life insurance policies and no less than annually thereafter. A life insurance policy with any individual carrier is limited to 10% of Tier 1 capital plus the allowable ACL (as defined for regulatory purposes) and the total cash surrender value of life insurance policies is limited to 25% of Tier 1 capital plus the allowable ACL. Premises and Equipment . Premises and equipment purchased in normal course are stated at cost less accumulated depreciation, while premises and equipment obtained through the acquisition of a company or branch acquisition are stated at their estimated fair values as of the acquisition date less accumulated depreciation that occurred subsequent to the acquisition date. Depreciation and amortization are computed using the straight-line method over the estimated useful lives of the related assets. Leasehold improvements are amortized over the lesser of the term of the respective lease or the estimated life of the improvement. Land is carried at cost. Repairs and maintenance costs that are not an improvement or do not extend the estimated useful life of the asset are expensed as incurred. Software costs, including cloud-based software licenses that qualify as internal-use software, are stated at cost less accumulated amortization within other assets on the consolidated statements of condition. Amortization expense is calculated using the straight-line method over the estimated useful lives of the related assets. Cloud-based software costs that do not qualify as internal-use software are capitalized as service contracts within other assets on the consolidated statements of condition and expensed ratably over the term of the contract period. Long-lived assets, including premises and equipment and certain identifiable intangibles, are reviewed for impairment whenever events or changes in circumstances indicate the carrying amount of an asset may not be recoverable. The amount of the impairment loss, if any, is based on the asset’s fair value. No impairment losses were recognized in 2023, 2022, or 2021. Leases. The Company leases office space, space for ATM locations and certain branch locations under noncancellable operating leases, several of which have renewal options to extend lease terms. Upon commencement of a new lease, the Company will recognize a ROU asset and corresponding lease liability. The Company makes the decision on whether to renew an option to extend a lease by considering various factors. The Company will recognize an adjustment to ROU asset and lease liability when lease agreements are amended and executed. The discount rate used in determining the present value of lease payments is based on the lessor’s implicit rate in the lease if known or on the Company's incremental borrowing rate for borrowing terms similar to each lease at commencement date. The Company has lease agreements with lease and non-lease components, which are generally accounted for separately. For real estate leases, non-lease components and other non-components, such as common area maintenance charges, real estate taxes and insurance, are not included in the measurement of the lease liability since they are generally able to be segregated. The Company has elected the short-term lease recognition exemption for all leases that qualify. OREO . OREO properties acquired through foreclosure or deed-in-lieu of foreclosure are recorded initially at estimated fair value less estimated costs to sell. Any write-down of the recorded investment in the related loan is charged to the ACL on loans upon transfer to OREO. Upon acquisition of a property, a current appraisal is used or an internal valuation is prepared to substantiate fair value of the property. Any subsequent declines in the fair value of a property are recorded as a valuation allowance on the asset. Any subsequent increases in the fair value of a property are recorded as reductions of the valuation allowance, but not below zero. At December 31, 2023 and 2022, the Company did not have any OREO properties carried on its consolidated statements of condition. Upon a sale of an OREO property, any excess of the carrying value over the sale proceeds is recognized as a loss on sale. Any excess of sale proceeds over the carrying value of the OREO property is first applied as a recovery to the valuation allowance, if any, with the remainder being recognized as a gain on sale. The recognized gain or loss upon sale of OREO property is recognized within other real estate owned and collection costs, net on the consolidated statements of income. Operating expenses, including legal and other direct expenses, and changes in the valuation allowance relating to foreclosed assets are included in other real estate ow

Investments

Investments	12 Months Ended
Investments	Dec. 31, 2023
Investments, Debt and Equity Securities [Abstract]
Investments	INVESTMENTS Trading Securities Trading securities are reported on the Company's consolidated statements of condition at fair value. As of December 31, 2023 and 2022, the fair value of the Company's trading securities were $4.6 million and $4.0 million, respectively. These securities are held in a rabbi trust account and invested in mutual funds. The trading securities will be used for future payments associated with the Company’s deferred compensation plan for eligible employees and directors. AFS Debt Securities AFS debt securities are reported on the Company's consolidated statements of condition at fair value. The following table summarizes the amortized cost, estimated fair value and unrealized gains (losses) of AFS debt securities as of the dates indicated: (In thousands) Amortized Unrealized Unrealized Fair December 31, 2023 Obligations of states and political subdivisions $ 6,429 $ 1 $ (44) $ 6,386 Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises 525,439 630 (65,978) 460,091 Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises 149,387 1,161 (9,537) 141,011 Subordinated corporate bonds 21,682 1 (3,363) 18,320 Total AFS debt securities $ 702,937 $ 1,793 $ (78,922) $ 625,808 December 31, 2022 Obligations of states and political subdivisions $ 49,678 $ 11 $ (463) $ 49,226 Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises 598,845 131 (84,957) 514,019 Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises 122,760 — (13,413) 109,347 Subordinated corporate bonds 25,677 3 (2,397) 23,283 Total AFS debt securities $ 796,960 $ 145 $ (101,230) $ 695,875 As of December 31, 2023 and 2022, there was no allowance carried on AFS debt securities. In June of 2022, the Company transferred securities with a fair value of $520.3 million from AFS to HTM. The unrealized losses on the AFS debt securities at the time of the transfer were $72.1 million, pre-tax, and were reported within AOCI. These unrealized losses are being amortized over the remaining life of the securities from AOCI into the HTM securities on the consolidated statements of income. At December 31, 2023 and 2022, the net unrealized losses on the transferred securities reported within AOCI were $46.9 million and $52.2 million, respectively, net of a deferred tax asset of $12.8 million and $14.3 million, respectively. The net unrealized losses on AFS debt securities reported within AOCI (excluding the aforementioned securities transferred from AFS to HTM) at December 31, 2023 and December 31, 2022 were $60.5 million and $79.4 million, respectively, and were net of a deferred tax asset of $16.6 million and $21.7 million, respectively. The following table details the Company’s sales of AFS debt securities for the periods indicated below: For the Year Ended (In thousands) 2023 2022 2021 Proceeds from sales $ 126,766 $ 36,280 $ — Gross realized gains — 13 — Gross realized losses (10,310) (925) — The following table presents AFS debt securities with gross unrealized losses, for which an ACL has not been recorded, segregated by the length of time the securities have been in a continuous loss position as of the dates indicated: Less Than 12 Months 12 Months or More Total (In thousands, except number of holdings) Number of Holdings Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses December 31, 2023 Obligations of states and political subdivisions 6 $ 2,345 $ (6) $ 1,437 $ (38) $ 3,782 $ (44) Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises 145 13,474 (23) 407,200 (65,955) 420,674 (65,978) Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises 43 19,620 (45) 62,869 (9,492) 82,489 (9,537) Subordinated corporate bonds 11 — — 17,319 (3,363) 17,319 (3,363) Total AFS debt securities 205 $ 35,439 $ (74) $ 488,825 $ (78,848) $ 524,264 $ (78,922) December 31, 2022 Obligations of states and political subdivisions 83 $ 42,276 $ (463) $ — $ — $ 42,276 $ (463) Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises 175 118,290 (11,521) 381,355 (73,436) 499,645 (84,957) Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises 64 47,340 (4,589) 62,007 (8,824) 109,347 (13,413) Subordinated corporate bonds 13 7,687 (384) 14,593 (2,013) 22,280 (2,397) Total AFS debt securities 335 $ 215,593 $ (16,957) $ 457,955 $ (84,273) $ 673,548 $ (101,230) As of December 31, 2023 and 2022, the unrealized losses on AFS debt securities have not been recognized into income because management does not intend to sell and it is not more-likely-than-not it will be required to sell any of the AFS debt securities before recovery of its amortized cost basis. Furthermore, the unrealized losses were due to changes in interest rates and other market conditions and were not reflective of credit events. Agency-backed and government-sponsored enterprise securities have a long history with no credit losses, including during times of severe stress. The principal and interest payments on agency-guaranteed debt is backed by the U.S. government. Government-sponsored enterprises similarly guarantee principal and interest payments and carry an implicit guarantee from the U.S. Department of the Treasury. Additionally, government-sponsored enterprise securities are exceptionally liquid, readily marketable, and provide a substantial amount of price transparency and price parity, indicating a perception of zero credit losses. Obligations of states and political subdivision are comprised solely of high credit quality (rated A- of higher) state and municipal obligations. High credit quality state and municipal obligations have a history of zero to near-zero credit loss. Subordinated corporate bonds are primarily comprised of investment grade senior notes and senior subordinated notes of other financial institutions. At December 31, 2023 and 2022, total accrued interest receivable on AFS debt securities, which has been excluded from reported amortized cost basis on AFS debt securities, was $1.7 million and $1.9 million, respectively, and was reported within other assets on the consolidated statements of condition. An allowance was not carried on the accrued interest receivable at either date. The amortized cost and estimated fair values of the Company’s AFS debt securities by contractual maturity are shown in the table below as of December 31, 2023. Expected maturities will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. Mortgage-related securities are shown in total, as their maturities are highly variable. (In thousands) Amortized Fair Due in one year or less $ 1,000 $ 1,000 Due after one year through five years 10,835 9,997 Due after five years through ten years 16,276 13,709 Due after ten years — — Subtotal 28,111 24,706 Mortgage-related securities 674,826 601,102 Total $ 702,937 $ 625,808 HTM Debt Securities HTM debt securities are reported on the Company's consolidated statements of condition at amortized cost. The following table summarizes the amortized cost, estimated fair value and unrealized gains (losses) of HTM debt securities as of the dates indicated: (In thousands) Amortized Cost (1) Unrealized Unrealized Fair December 31, 2023 Obligations of U.S. government-sponsored enterprises $ 7,593 $ — $ (528) $ 7,065 Obligations of states and political subdivisions 56,262 1,242 (731) 56,773 Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises 304,850 — (21,623) 283,227 Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises 157,118 515 (13,497) 144,136 Subordinated corporate bonds 19,108 1,377 (1,091) 19,394 Total HTM debt securities $ 544,931 $ 3,134 $ (37,470) $ 510,595 December 31, 2022 Obligations of U.S. government-sponsored enterprises $ 7,457 $ — $ (777) $ 6,680 Obligations of states and political subdivisions 55,978 431 (1,610) 54,799 Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises 317,406 — (24,766) 292,640 Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises 145,069 — (13,724) 131,345 Subordinated corporate bonds 20,673 332 (276) 20,729 Total HTM debt securities $ 546,583 $ 763 $ (41,153) $ 506,193 (1) Amortized cost presented above includes unamortized unrealized losses from the aforementioned transfer from AFS to HTM securities as of December 31, 2023 and 2022 as follows: (1) $992,000 and $1.1 million, respectively, in obligations of U.S. government-sponsored enterprises; (2) $5.6 million and $6.1 million, respectively, in obligations of state and political subdivisions; (3) $34.6 million and $38.4 million, respectively, in mortgage-backed securities; (4) $18.4 million and $20.7 million, respectively, in collateralized mortgage obligations; and (5) $85,000 and $117,000, respectively in subordinated corporate bonds. For the year ended December 31, 2023, the Company recorded a provision for credit losses on its HTM debt securities portfolio of $1.8 million for the full write-off of a Signature Bank corporate bond due to Signature Bank’s failure in March 2023. The Company did not previously carry any ACL on the bond. In addition to the write-off of the Signature Bank corporate bond, the Company wrote-off accrued interest totaling $8,000 associated with the Signature Bank corporate bond and recorded a reversal of interest income on the consolidated statements of income for the year ended December 31, 2023. The Company did not record any provisions for credit losses on its HTM debt securities nor write-off any accrued interest for the years ended December 31, 2022 or 2021. The HTM debt securities portfolio is comprised of the same types of securities as the AFS debt securities portfolio. Refer to the discussion above for considerations of credit risk. The Company evaluated its HTM debt securities with an amortized cost as of December 31, 2023 and 2022 and determined that the expected credit loss on its HTM portfolio was immaterial, and therefore it did not carry an ACL on the HTM portfolio at either date. The following table presents the activity in the ACL on HTM debt securities, as reported under CECL, for the periods indicated: December 31, (In thousands) 2023 2022 Beginning balance $ — $ — HTM debt securities charged-off (1,838) — Provision for HTM debt securities 1,838 — Ending balance $ — $ — Subsequent to December 31, 2023, the Company sold the HTM debt security that was previously charged off in 2023 and received proceeds of $910,000 that will be recorded as a recovery and a credit to the provision for HTM debt securities in the first quarter of 2024. As of December 31, 2023 and 2022, none of the Company's HTM debt securities were past due or on non-accrual status. The Company did not recognize any interest income on non-accrual HTM debt securities during the years ended December 31, 2023, 2022, and 2021. At December 31, 2023 and 2022, total accrued interest receivable on HTM debt securities was $1.7 million and no allowance was provided for. Accrued interest on HTM debt securities is reported within other assets on the consolidated statements of condition and excluded from reported amortized cost. The amortized cost and estimated fair values of HTM debt securities by contractual maturity are shown in the table below as of December 31, 2023. Expected maturities will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. Mortgage-related securities are shown in total, as their maturities are highly variable. (In thousands) Amortized Fair Due in one year or less $ 502 $ 498 Due after one year through five years 1,790 1,818 Due after five years through ten years 35,975 35,840 Due after ten years 44,696 45,076 Subtotal 82,963 83,232 Mortgage-related securities 461,968 427,363 Total $ 544,931 $ 510,595 AFS and HTM Debt Securities Pledged At December 31, 2023 and 2022, AFS and HTM debt securities with an amortized cost of $675.5 million and $821.9 million, respectively, and estimated fair values of $607.9 million and $726.5 million, respectively, were pledged to secure FHLBB advances, public deposits, and securities sold under agreements to repurchase, and for other purposes required or permitted by law. Other Investments The Company's FHLBB and FRB common stock are reported at cost within other investments on the consolidated statements of condition. The Company evaluates these investments for impairment based on the ultimate recoverability of the par value. The Company did not record any impairment on its FHLBB and FRB stock for the years ended December 31, 2023, 2022 and 2021. The following table summarizes the Company's investment in FHLBB stock and FRB stock as presented within other investments on the consolidated statements of condition, as of the dates indicated: (In thousands) December 31, 2023 December 31, 2022 FHLBB $ 10,020 $ 7,339 FRB 5,374 5,374 Total $ 15,394 $ 12,713

Loans and Allowance for Credit

Loans and Allowance for Credit Losses on Loans	12 Months Ended
Loans and Allowance for Credit Losses on Loans	Dec. 31, 2023
Receivables [Abstract]
Loans and Allowance for Credit Losses on Loans	LOANS AND ALLOWANCE FOR CREDIT LOSSES ON LOANS The composition of the Company’s loan portfolio, excluding residential loans held for sale, was as follows for the dates indicated: December 31, (In thousands) 2023 2022 Commercial Loans: Commercial real estate - non-owner-occupied $ 1,370,446 $ 1,292,443 Commercial real estate - owner-occupied 301,860 332,494 Commercial 403,901 430,131 Total commercial loans 2,076,207 2,055,068 Retail Loans: Residential real estate 1,763,378 1,700,266 Home equity 240,341 234,428 Consumer 18,168 20,591 Total retail loans 2,021,887 1,955,285 Total loans $ 4,098,094 $ 4,010,353 The loan balances for each portfolio segment presented above are net of their respective net unamortized fair value mark discount on acquired loans and net unamortized loan origination costs for the dates indicated: December 31, (In thousands) 2023 2022 Net unamortized fair value mark discount on acquired loans $ (168) $ (313) Net unamortized loan origination costs 7,113 6,890 Total $ 6,945 $ 6,577 The Company's lending activities are primarily conducted in Maine, but also include loan production offices in Massachusetts and New Hampshire. The Company originates single- and multi-family residential loans, commercial real estate loans, business loans, municipal loans and a variety of consumer loans. In addition, the Company makes loans for the construction of residential homes, multi-family properties and commercial real estate properties. The ability and willingness of borrowers to honor their repayment commitments is generally dependent on the level of overall economic activity within the geographic area and the general economy. Related Party Loans. In the normal course of business, the Company makes loans to certain officers, directors and their associated companies, under terms that are consistent with the Company’s lending policies and regulatory requirements and do not involve more than the normal risk of collectability or present other unfavorable features. At December 31, 2023 and 2022, outstanding loans to certain officers, directors and their associated companies were less than 5% of the Company's shareholders' equity. ACL on Loans The Company manages its loan portfolio proactively to effectively identify problem credits and assess trends early, implement effective work-out strategies, and take charge-offs as promptly as practical. In addition, the Company continuously reassesses its underwriting standards in response to credit risk posed by changes in economic conditions. The Company monitors and manages credit risk through the following governance structure: • The Credit Risk team, Collection and Special Assets team and the Credit Risk Policy Committee, which is an internal management committee comprised of various executives and senior managers across business lines, including Accounting and Finance, Credit Underwriting, Collections and Special Assets, Risk, and Commercial and Retail Banking, oversee the Company's systems and procedures to monitor the credit quality of its loan portfolio, conduct a loan review program, and maintain the integrity of the loan rating system. • The adequacy of the ACL is overseen by the Management Provision Committee, which is an internal management committee comprised of various Company executives and senior managers across business lines, including Accounting and Finance, Credit Underwriting, Collections and Special Assets, Compliance, and Commercial and Retail Banking. The Management Provision Committee supports the oversight efforts of the Audit Committee of the Board of Directors. • The Directors' Credit Committee of the Board of Directors reviews large credit exposures, monitors external loan review reports, reviews the lending authority for individual loan officers when required, and has approval authority and responsibility for all matters regarding the loan policy and other credit-related policies, including reviewing and monitoring asset quality trends, and concentration levels. • The Audit Committee of the Board of Directors has approval authority and oversight responsibility for the ACL adequacy and methodology. Segmentation. For purposes of determining the ACL on loans, the Company disaggregates its loans into portfolio segments. Each portfolio segment possesses unique risk characteristics that are considered when determining the appropriate level of allowance. As of December 31, 2023 and 2022, the Company's loan portfolio segments, as determined based on the unique risk characteristics of each, included the following: Commercial Real Estate - Non-Owner-Occupied. Non-owner occupied commercial real estate loans are, in substance, all commercial real estate loans that are not categorized by the Company as owner-occupied commercial real estate loans. Non owner-occupied commercial estate loans are investment properties in which the primary source for repayment of the loan by the borrower is derived from rental income associated with the property or the proceeds of the sale, refinancing, or permanent refinancing of the property. Non-owner-occupied commercial real estate loans consist of mortgage loans to finance investments in real property that may include, but are not limited to, multi-family residential, commercial/retail office space, industrial/warehouse space, hotels, assisted living facilities and other specific use properties. Also included within the non-owner-occupied commercial real estate loan segment are construction projects until they are completed. Commercial real estate loans are typically written with amortizing payment structures. Collateral values are determined based upon appraisals and evaluations in accordance with established policy guidelines. Maximum loan-to-value ratios at origination are governed by established policy and regulatory guidelines. Commercial Real Estate - Owner-Occupied. Generally, owner-occupied commercial real estate loans are properties that are owned and operated by the borrower, and the primary source for repayment is the cash flow from the ongoing operations and activities conducted by the borrower's business. Owner-occupied commercial real estate loans consist of mortgage loans to finance investments in real property that may include, but are not limited to, commercial/retail office space, restaurants, educational and medical practice facilities and other specific use properties. Commercial real estate loans are typically written with amortizing payment structures. Collateral values are determined based upon appraisals and evaluations in accordance with established policy guidelines. Maximum loan-to-value ratios at origination are governed by established policy and regulatory guidelines. Commercial. Commercial loans consist of revolving and term loan obligations extended to business and corporate enterprises for the purpose of financing working capital and/or capital investment. Collateral generally consists of pledges of business assets including, but not limited to, accounts receivable, inventory, plant and equipment, and/or real estate, if applicable. Commercial loans are primarily paid by the operating cash flow of the borrower. Commercial loans may be secured or unsecured. Residential Real Estate . Residential real estate loans held in the Company's loan portfolio are made to borrowers who demonstrate the ability to make scheduled payments with full consideration to underwriting factors. Borrower qualifications include favorable credit history combined with supportive income requirements and combined loan-to-value ratios within established policy guidelines. Collateral consists of mortgage liens on one- to four-family residences, including for investment purposes. Home Equity. Home equity loans and lines of credit are made to qualified individuals and are secured by senior or junior mortgage liens on owner-occupied one- to four-family homes, condominiums, or vacation homes. The home equity loan has a fixed rate and is billed as equal payments comprised of principal and interest. The home equity line of credit has a variable rate and is billed as interest-only payments during the draw period. At the end of the draw period, the home equity line of credit is billed as a percentage of the principal balance plus all accrued interest. Borrower qualifications include favorable credit history combined with supportive income requirements and combined loan-to-value ratios within established policy guidelines. Consumer. Consumer loan products including personal lines of credit and amortizing loans made to qualified individuals for various purposes such as education, auto loans, debt consolidation, personal expenses or overdraft protection. Borrower qualifications include favorable credit history combined with supportive income and collateral requirements within established policy guidelines, as applicable. Consumer loans may be secured or unsecured. ACL on Loans. The following table presents the activity in the ACL on loans, as reported under CECL, for the periods indicated: Commercial Real Estate (In thousands) Non-Owner-Occupied Owner- Occupied Commercial Residential Real Estate Home Equity Consumer Total At or For the Year Ended December 31, 2023 Beginning balance, December 31, 2022 $ 17,296 $ 2,362 $ 5,446 $ 9,089 $ 2,225 $ 504 $ 36,922 Loans charged-off — (58) (1,560) (18) — (91) (1,727) Recoveries 19 — 471 44 1 31 566 (Credit) provision for loan losses (734) (14) 512 1,139 (9) 280 1,174 Ending balance, December 31, 2023 $ 16,581 $ 2,290 $ 4,869 $ 10,254 $ 2,217 $ 724 $ 36,935 At or For the Year Ended December 31, 2022 Beginning balance, December 31, 2021 $ 18,834 $ 2,539 $ 4,202 $ 6,133 $ 1,469 $ 79 $ 33,256 Loans charged-off — — (1,042) (66) — (134) (1,242) Recoveries 3 2 379 — 87 7 478 (Credit) provision for loan losses (1,541) (179) 1,907 3,022 669 552 4,430 Ending balance, December 31, 2022 $ 17,296 $ 2,362 $ 5,446 $ 9,089 $ 2,225 $ 504 $ 36,922 The ACL on loans at December 31, 2023 and 2022, was $36.9 million at each date. In the fourth quarter of 2023 and 2022, the Company completed its annual assessment of significant model inputs and assumptions within its discounted cash flow analysis used for estimating its ACL on loans as of December 31, 2023, and determined there were no material changes to the methodology. The significant model inputs and assumptions used within the discounted cash flow model for purposes of estimating the ACL on loans were: • Macroeconomic (loss) drivers: As of December 31, 2023 and 2022, the following loss drivers for each loan segment were used to calculate the expected PD over the forecast and reversion period: (i) commercial real estate – non-owner-occupied used Maine Unemployment and change in Maine GDP; (ii) commercial real estate – owner-occupied used Maine Unemployment and change in Maine GDP, (iii) commercial used Maine Unemployment and change in National GDP; (iv) residential real estate used Maine Unemployment and change in Maine House Price Index, (v) home equity used Maine Unemployment and change in Maine House Price Index and (vi) consumer used Maine Unemployment and change in National GDP. • Reasonable and Supportable Forecast Period: As of December 31, 2023 and 2022, the ACL on loans estimate used a reasonable and supportable forecast period of two years and one year, respectively. • Reversion Period: As of December 31, 2023 and 2022, the ACL on loans estimate used a reversion period of two years and one year, respectively. • Prepayment Speeds: As of December 31, 2023 and 2022, the estimated prepayment speed for each loan segment continued to be derived used internally-sourced prepayment data. In 2023, the Company decreased the prepayment speeds for the residential and commercial real estate non-owner-occupied and owner-occupied segments to align with current market conditions. • Qualitative Factors: As of December 31, 2023 and 2022, the ACL on loans estimate incorporated various qualitative factors into the calculation. Credit Concentrations. The Company focuses on maintaining a well-balanced and diversified loan portfolio. Despite such efforts, it is recognized that credit concentrations may occasionally emerge as a result of economic conditions, changes in local demand, natural loan growth and runoff. To identify credit concentrations effectively, all commercial and commercial real estate loans are assigned Standard Industrial Classification codes, North American Industry Classification System codes, and state and county codes. As of December 31, 2023, the Company's total exposure to the lessors of nonresidential buildings' industry and lessors of residential buildings’ industry were 13% and 11% of total loans, respectively, and 33% and 28% of total commercial real estate loans, respectively. There were no other industry concentrations exceeding 10% of the Company's total loan portfolio as of December 31, 2023. Credit Quality Indicators. To further identify loans with similar risk profiles, the Company categorizes each portfolio segment into classes by credit risk characteristic and applies a credit quality indicator to each portfolio segment. The indicators for commercial real estate - non-owner-occupied and owner-occupied, commercial and residential real estate portfolio segments are represented by Grades 1 through 10 as outlined below. In general, risk ratings are adjusted periodically throughout the year as updated analysis and review warrants. This process may include, but is not limited to, annual credit and loan reviews, periodic reviews of loan performance metrics, such as delinquency rates, and quarterly reviews of adversely risk rated loans. The Company uses the following definitions when assessing grades for the purpose of evaluating the risk and adequacy of the ACL on loans: • Grade 1 through 6 — Grades 1 through 6 represent groups of loans that are not subject to adverse criticism as defined in regulatory guidance. Loans in these groups exhibit characteristics that represent low to moderate risks, which is measured using a variety of credit risk criteria, such as cash flow coverage, debt service coverage, balance sheet leverage, liquidity, management experience, industry position, prevailing economic conditions, support from secondary sources of repayment and other credit factors that may be relevant to a specific loan. In general, these loans are supported by properly margined collateral and guarantees of principal parties. • Grade 7 — Loans with potential weakness (Special Mention). Loans in this category are currently protected based on collateral and repayment capacity and do not constitute undesirable credit risk, but have potential weakness that may result in deterioration of the repayment process at some future date. This classification is used if a negative trend is evident in the obligor’s financial situation. Special mention loans do not sufficiently expose the Company to warrant adverse classification. • Grade 8 — Loans with definite weakness (Substandard). Loans classified as substandard are inadequately protected by the current sound worth and paying capacity of the obligor or by collateral pledged. Borrowers experience difficulty in meeting debt repayment requirements. Deterioration is sufficient to cause the Company to look to the sale of collateral. • Grade 9 — Loans with potential loss (Doubtful). Loans classified as doubtful have all the weaknesses inherent in the substandard grade with the added characteristic that the weaknesses make collection or liquidation of the loan in full highly questionable and improbable. The possibility of some loss is extremely high, but because of specific pending factors that may work to the advantage and strengthening of the asset, its classification as an estimated loss is deferred until its more exact status may be determined. • Grade 10 — Loans with definite loss (Loss). Loans classified as loss are considered uncollectible. The loss classification does not mean that the asset has absolutely no recovery or salvage value, but rather that it is not practical or desirable to defer writing off the asset because recovery and collection time may be protracted. The Company periodically reassesses asset quality indicators to reflect appropriately the risk composition of the Company’s loan portfolio. Home equity and consumer loans are not individually risk rated, but rather analyzed as groups taking into account delinquency rates and other economic conditions which may affect the ability of borrowers to meet debt service requirements, including interest rates and energy costs. Performing loans include loans that are current and loans that are past due less than 90 days. Loans that are past due over 90 days and non-accrual loans, are considered non-performing. Based on the most recent analysis performed, the risk category of loans by portfolio segment by vintage, reported under the CECL methodology, was as follows as of the periods indicated: (In thousands) 2023 2022 2021 2020 2019 Prior Revolving Loans Revolving Loans Total As of December 31, 2023 Commercial real estate - non-owner-occupied Risk rating: Pass (Grades 1-6) $ 103,012 $ 364,777 $ 296,152 $ 146,707 $ 116,777 $ 320,101 $ — $ — $ 1,347,526 Special mention (Grade 7) 7,997 — — 350 33 3,597 — — 11,977 Substandard (Grade 8) 747 450 — 2,287 114 7,345 — — 10,943 Doubtful (Grade 9) — — — — — — — — — Total commercial real estate - non-owner-occupied $ 111,756 $ 365,227 $ 296,152 $ 149,344 $ 116,924 $ 331,043 $ — $ — $ 1,370,446 Gross charge-offs for the year ended $ — $ — $ — $ — $ — $ — $ — $ — $ — Commercial real estate - owner-occupied Risk rating: Pass (Grades 1-6) $ 26,902 $ 53,550 $ 76,575 $ 24,608 $ 18,728 $ 89,133 $ — $ — $ 289,496 Special mention (Grade 7) — — 2,355 — — 141 — — 2,496 Substandard (Grade 8) — 402 320 — — 9,146 — — 9,868 Doubtful (Grade 9) — — — — — — — — — Total commercial real estate - owner-occupied $ 26,902 $ 53,952 $ 79,250 $ 24,608 $ 18,728 $ 98,420 $ — $ — $ 301,860 Gross charge-offs for the year ended $ — $ — $ — $ — $ — $ 58 $ — $ — $ 58 Commercial Risk rating: Pass (Grades 1-6) $ 41,871 $ 54,323 $ 56,102 $ 24,338 $ 25,620 $ 35,442 $ 119,119 $ 36,895 $ 393,710 Special mention (Grade 7) 45 — 152 195 — 101 660 5 1,158 Substandard (Grade 8) 248 588 296 769 955 1,354 2,415 2,408 9,033 Doubtful (Grade 9) — — — — — — — — — Total commercial $ 42,164 $ 54,911 $ 56,550 $ 25,302 $ 26,575 $ 36,897 $ 122,194 $ 39,308 $ 403,901 Gross charge-offs for the year ended $ — $ 68 $ 137 $ 31 $ 20 $ 1,075 $ 82 $ 147 $ 1,560 Residential Real Estate Risk rating: Pass (Grades 1-6) $ 160,315 $ 539,835 $ 540,980 $ 220,943 $ 70,917 $ 226,126 $ 370 $ 386 $ 1,759,872 Special mention (Grade 7) — — — — — — — — — Substandard (Grade 8) — — 963 — 89 2,454 — — 3,506 Doubtful (Grade 9) — — — — — — — — — Total residential real estate $ 160,315 $ 539,835 $ 541,943 $ 220,943 $ 71,006 $ 228,580 $ 370 $ 386 $ 1,763,378 Gross charge-offs for the year ended $ — $ — $ — $ — $ — $ 18 $ — $ — $ 18 Home equity Risk rating: Performing $ 15,976 $ 23,104 $ 547 $ 324 $ 4,124 $ 12,686 $ 169,416 $ 13,405 $ 239,582 Non-performing — — — — — 11 527 221 759 Total home equity $ 15,976 $ 23,104 $ 547 $ 324 $ 4,124 $ 12,697 $ 169,943 $ 13,626 $ 240,341 Gross charge-offs for the year ended $ — $ — $ — $ — $ — $ — $ — $ — $ — Consumer Risk rating: Performing $ 5,525 $ 4,908 $ 2,068 $ 815 $ 345 $ 2,279 $ 2,191 $ — $ 18,131 Non-performing — — 5 — — 32 — — 37 Total consumer $ 5,525 $ 4,908 $ 2,073 $ 815 $ 345 $ 2,311 $ 2,191 $ — $ 18,168 Gross charge-offs for the year ended $ 2 $ 19 $ 31 $ 14 $ 8 $ 4 $ 13 $ — $ 91 (In thousands) 2022 2021 2020 2019 2018 Prior Revolving Loans Revolving Loans Total As of December 31, 2022 Commercial real estate - non-owner-occupied Risk rating: Pass (Grades 1-6) $ 339,171 $ 287,749 $ 160,621 $ 125,029 $ 108,823 $ 242,024 $ — $ — $ 1,263,417 Special mention (Grade 7) — 167 364 259 75 321 — — 1,186 Substandard (Grade 8) — 127 1,306 203 7,798 18,406 — — 27,840 Doubtful (Grade 9) — — — — — — — — — Total commercial real estate - non-owner-occupied $ 339,171 $ 288,043 $ 162,291 $ 125,491 $ 116,696 $ 260,751 $ — $ — $ 1,292,443 Commercial real estate - owner-occupied Risk rating: Pass (Grades 1-6) $ 60,127 $ 80,781 $ 28,378 $ 23,381 $ 39,554 $ 70,568 $ — $ — $ 302,789 Special mention (Grade 7) — 2,053 — 19,992 — 411 — — 22,456 Substandard (Grade 8) 17 — — — 3,266 3,966 — — 7,249 Doubtful (Grade 9) — — — — — — — — — Total commercial real estate - owner-occupied $ 60,144 $ 82,834 $ 28,378 $ 43,373 $ 42,820 $ 74,945 $ — $ — $ 332,494 Commercial Risk rating: Pass (Grades 1-6) $ 73,537 $ 70,110 $ 32,272 $ 33,491 $ 22,271 $ 26,245 $ 135,157 $ 30,191 $ 423,274 Special mention (Grade 7) — — 93 141 70 189 1,196 12 1,701 Substandard (Grade 8) 149 52 133 216 846 1,524 50 2,186 5,156 Doubtful (Grade 9) — — — — — — — — — Total commercial $ 73,686 $ 70,162 $ 32,498 $ 33,848 $ 23,187 $ 27,958 $ 136,403 $ 32,389 $ 430,131 Residential Real Estate Risk rating: Pass (Grades 1-6) $ 533,035 $ 579,216 $ 244,691 $ 79,492 $ 50,214 $ 210,262 $ 340 $ — $ 1,697,250 Special mention (Grade 7) — — — — — 23 — — 23 Substandard (Grade 8) — — — — 163 2,830 — — 2,993 Doubtful (Grade 9) — — — — — — — — — Total residential real estate $ 533,035 $ 579,216 $ 244,691 $ 79,492 $ 50,377 $ 213,115 $ 340 $ — $ 1,700,266 Home equity Risk rating: Performing $ 26,712 $ 693 $ 341 $ 4,842 $ 7,730 $ 8,551 $ 173,338 $ 11,735 $ 233,942 Non-performing — — — — — 27 377 82 486 Total home equity $ 26,712 $ 693 $ 341 $ 4,842 $ 7,730 $ 8,578 $ 173,715 $ 11,817 $ 234,428 Consumer Risk rating: Performing $ 8,009 $ 3,816 $ 1,702 $ 1,188 $ 345 $ 2,462 $ 3,069 $ — $ 20,591 Non-performing — — — — — — — — — Total consumer $ 8,009 $ 3,816 $ 1,702 $ 1,188 $ 345 $ 2,462 $ 3,069 $ — $ 20,591 Past Due and Non-Accrual Loans. The Company closely monitors the performance of its loan portfolio. A loan is placed on non-accrual when the financial condition of the borrower is deteriorating, payment in full of both principal and interest is not expected as scheduled or principal or interest has been in default for 90 days or more. Exceptions may be made if the asset is secured by collateral sufficient to satisfy both the principal and accrued interest in full and collection is reasonably assured. When one loan to a borrower is placed on non-accrual, all other loans to the borrower are re-evaluated to determine if they should also be placed on non-accrual. All previously accrued and unpaid interest is reversed at this time. A loan will return to accrual when collection of principal and interest is assured and the borrower has demonstrated timely payments of principal and interest for a reasonable period, generally at least six months. Unsecured loans, however, are not normally placed on non-accrual because they are charged-off once their collectability is in doubt. The following is a loan aging analysis by portfolio segment (including loans past due over 90 days and non-accrual loans) and loans past due over 90 days and accruing as of the following dates: (In thousands) 30 – 59 Days Past Due 60 – 89 Days Past Due 90 Days or Greater Past Due Total Past Due Current Total Loans Outstanding Loans > 90 Days Past Due and Accruing December 31, 2023: Commercial real estate - non-owner-occupied $ 44 $ 41 $ 184 $ 269 $ 1,370,177 $ 1,370,446 $ — Commercial real estate - owner-occupied 655 — — 655 301,205 301,860 — Commercial 1,153 1,199 1,155 3,507 400,394 403,901 — Residential real estate 1,317 322 1,094 2,733 1,760,645 1,763,378 — Home equity 521 451 301 1,273 239,068 240,341 — Consumer 85 8 5 98 18,070 18,168 — Total $ 3,775 $ 2,021 $ 2,739 $ 8,535 $ 4,089,559 $ 4,098,094 $ — December 31, 2022: Commercial real estate - non-owner-occupied $ 267 $ — $ 11 $ 278 $ 1,292,165 $ 1,292,443 $ — Commercial real estate - owner-occupied 55 — 47 102 332,392 332,494 — Commercial 667 134 640 1,441 428,690 430,131 — Residential real estate 852 186 524 1,562 1,698,704 1,700,266 — Home equity 357 — 171 528 233,900 234,428 — Consumer 23 11 — 34 20,557 20,591 — Total $ 2,221 $ 331 $ 1,393 $ 3,945 $ 4,006,408 $ 4,010,353 $ — The following table presents the amortized cost basis of loans on non-accrual status (including non-accruing TDRs) by portfolio segment as of the dates indicated: December 31, 2023 2022 (In thousands) Non-Accrual Loans With an Allowance Non-Accrual Loans Without an Allowance Total Non-Accrual Loans Non-Accrual Loans With an Allowance Non-Accrual Loans Without an Allowance Total Non-Accrual Loans Commercial real estate - non-owner-occupied $ 261 $ — $ 261 $ — $ 11 $ 11 Commercial real estate - owner-occupied 125 — 125 — 46 46 Commercial 1,725 — 1,725 415 300 715 Residential real estate 2,541 — 2,541 1,314 419 1,733 Home equity 759 — 759 421 65 486 Consumer 37 — 37 — — — Total $ 5,448 $ — $ 5,448 $ 2,150 $ 841 $ 2,991 The following table presents the amortized cost basis of collateral-dependent loans by portfolio segment and collateral type, as of the dates indicated: December 31, 2023 December 31, 2022 Collateral Type Total Collateral -Dependent Non-Accrual Loans Collateral Type Total Collateral -Dependent Non-Accrual Loans (In thousands) Real Estate Real Estate Commercial real estate - non-owner-occupied $ 4,494 $ 4,494 $ — $ — Commercial 671 671 — — Residential real estate — — 387 387 Total $ 5,165 $ 5,165 $ 387 $ 387 Collateral-dependent loans are loans for which the repayment is expected to be provided substantially by the underlying collateral and there are no other available and reliable sources of repayment. Interest income that would have been recognized if loans on non-accrual status had been current in accordance with their original terms for the years ended December 31, 2023, 2022, and 2021 is estimated to have been $131,000, $145,000, and $256,000, respectively. The Company's policy is to reverse previously recorded interest income when a loan is placed on non-accrual, as such, the Company did not record any interest income on its non-accrual for the years ended December 31, 2023, 2022, and 2021. As of December 31, 2023 and 2022, total accrued interest receivable on loans, which has been excluded from reported amortized cost basis on loans, was $12.7 million and $10.3 million, respectively, and reported within other assets on the consolidated statements of condition. An allowance was not carried on the accrued interest receivable at either date. Loan Modifications for Borrowers Experiencing Financial Difficulty Effective January 1, 2023, the Company prospectively evaluates all loan modifications in accordance with ASU 2022-02 and no longer evaluates loan modifications for consideration of TDR accounting. Under ASU 2022-02, a loan previously assessed under the TDR criteria is now evaluated to consider whether the loan represents a new loan or a continuation of an existing loan. Refer to Note 1 of the consolidated financial statements for further discussion of the Company's accounting recently adopted policy for the TDRs The Company offers several types of loans and receivables modification programs to borrowers experiencing financial difficulty, primarily interest rate reductions and term extensions. In such instances, the Company may modify loans and receivables with the intention to minimize future losses and improve collectability, while providing customers with temporary or permanent financial relief. For the year ended December 31, 2023, the Company modified one loan that qualified as a modified loan under ASU 2022-02. The following table presents the amortized cost basis of loans, by class and by type of modification, that were both experiencing financial difficulty and modified during the year ended December 31, 2023. The percentage of the amortized cost basis of loans that were modified to borrowers in financial distress as compared to the amortized cost basis of each class of financing receivable as of December 31, 2023, is also presented below: (In thousands) Principal Forgiveness Payment Delay Term Extension Interest Rate Reduction Combination Term Extension and Principal Forgiveness Combination Term Extension and Interest Rate Reduction Total % of Portfolio Commercial real estate - non-owner-occupied $ — $ — $ 4,494 $ — $ — $ — 0.3 % Total $ — $ — $ 4,494 $ — $ — $ — 0.1 % The following table presents the financial effect of the loan modifications presented above to borrowers experiencing financial difficulty for the year ended December 31, 2023: (In thousands) Principal Forgiveness Weighted Average Interest Rate Reduction Weighted Average Term Extension (Years) Commercial real estate - non-owner-occupied $ — — % 1.3 The Company closely monitors the performance of loans that are modified to borrowers experiencing financial difficulty to understand the effectiveness of its modification efforts and relevant factors are considered while assessing the adequacy of the ACL. As of December 31, 2023, there were no modified loans to borrowers experiencing financial difficulty that were past due or for which the borrower subsequently defaulted. In-Process Foreclosure Proceedings

Goodwill and Core Deposit Intan

Goodwill and Core Deposit Intangible Assets	12 Months Ended
Goodwill and Core Deposit Intangible Assets	Dec. 31, 2023
Other Intangible Assets [Abstract]
Other Intangibles Assets	GOODWILL AND CORE DEPOSIT INTANGIBLE ASSETS Goodwill At December 31, 2023 and 2022, the carrying value of goodwill was $94.7 million. There were no changes in the carrying value of goodwill for the years ended December 31, 2023 or 2022. The Company performs its annual goodwill impairment assessment as of November 30 th , and at interim periods if indicators of potential impairment exist. The Company completed its annual goodwill impairment test as of November 30, 2023, 2022 and 2021 and determined goodwill was not impaired. Core Deposit Intangible Assets The gross carrying amount and accumulated amortization of core deposit intangible assets were as follows at the periods indicated: December 31, 2023 2022 (In thousands) Gross Accumulated Net Gross Accumulated Net Core deposit intangible assets $ 6,451 $ (5,480) $ 971 $ 6,451 $ (4,888) $ 1,563 For the years ended December 31, 2023, 2022 and 2021, the Company recorded amortization expense of $592,000, $625,000 and $655,000, respectively. The following table reflects the amortization expense for core deposit intangible assets over the period of economic benefit, which is estimated to be fully realized by December 31, 2025: (In thousands) Core Deposit Intangible Assets 2024 556 2025 415 Total $ 971

Premises and Equipment

Premises and Equipment	12 Months Ended
Premises and Equipment	Dec. 31, 2023
Property, Plant and Equipment [Abstract]
Premises and Equipment	PREMISES AND EQUIPMENT Details of premises and equipment, at cost, for the periods indicated, were as follows: December 31, (In thousands) 2023 2022 Buildings and leasehold improvements $ 47,566 $ 46,670 Furniture, fixtures and equipment 19,120 20,036 Land and land improvements 9,320 9,275 Total cost 76,006 75,981 Accumulated depreciation and amortization (40,957) (39,959) Premises and equipment, net $ 35,049 $ 36,022 Depreciation and amortization expense for the periods indicated were as follows: (In thousands) For the Year Ended Fixed Asset Type Income Statement Line Item 2023 2022 2021 Furniture and equipment Furniture, equipment and data processing $ 1,514 $ 1,796 $ 1,994 Premises Net occupancy costs 1,618 1,560 1,623 Software Furniture, equipment and data processing 239 134 91 Total $ 3,371 $ 3,490 $ 3,708 There were no gains or losses from the sale of premises and equipment for the years ended December 31, 2023 or 2021. During 2022, the Company sold one building and recognized a gain of $204,000. At December 31, 2023 and 2022, the Company had capitalized cloud computing software costs of $2.8 million and $2.5 million, respectively, and related accumulated depreciation expense of $2.2 million for both years, and was presented within other assets on the consolidated statements of condition, refer to Note 1 for further information.

Leases Leases

Leases Leases	12 Months Ended
Leases Leases	Dec. 31, 2023
Leases [Abstract]
Leases	LEASES The Company enters into noncancellable lease arrangements primarily for office space, space for ATM locations and some of its branches. Certain lease arrangements contain clauses requiring increasing rental payments over the lease term, which may be linked to an index (commonly the Consumer Price Index) or contractually stipulated. The Company's lease agreements do not contain any material residual value guarantees or material restrictive covenants. The Company entered into a lease arrangement with two of its employees as landlords. The lease was renewed for a period of five years, expiring in 2024, at which time a five-year extension period is available at the option of the Company. The lease arrangement contains certain termination clauses whereby the Company has the right to terminate the lease arrangement, as well as a right to terminate the lease after two years with the required notice without penalty. The Company entered into a lease agreement in 2019 to rent office space as a sub-tenant from another company in which a director of the Company serves as the Chairman and Chief Executive Officer of the other company. The term of the lease is through 2027. The following ROU assets and lease liabilities have been reported within other assets and other liabilities on the consolidated statements of condition as of the dates indicated: December 31, 2023 2022 (In thousands) Consolidated Statements of Condition Operating Leases Finance Leases Total Operating Leases Finance Leases Total ROU assets Other Assets $ 11,497 $ 4,252 $ 15,749 $ 12,324 $ 4,485 $ 16,809 Lease liabilities Other Liabilities 9,978 4,449 14,427 10,718 4,616 15,334 In accordance with ASC 842, the components of lease expense for the periods indicated were as follows: For the Year Ended (In thousands) 2023 2022 2021 Operating lease cost (1) $ 1,531 $ 1,488 $ 1,474 Finance lease cost: Amortization of ROU assets 233 233 233 Interest on lease liabilities (2) 147 150 154 Total finance lease cost 380 383 387 Total lease cost (3) $ 1,911 $ 1,871 $ 1,861 (1) Includes immaterial short-term and variable lease costs, but excludes common area maintenance costs. (2) Includes immaterial variable lease costs. (3) Reported within net occupancy costs on the consolidated statements of income. Supplemental cash flow information and non-cash activity related to leases was as follows for the periods indicated: For the Year Ended (In thousands) 2023 2022 2021 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 1,387 $ 1,391 $ 1,355 Operating cash flows from finance leases 144 149 154 Financing cash flows from finance leases 168 160 152 ROU assets obtained in exchange for new lease obligations: Operating leases $ 165 $ 764 $ 106 Finance leases — — — Supplemental information related to leases was as follows as of the dates indicated: December 31, 2023 2022 Weighted average remaining lease term: Operating leases 13.2 years 13.9 years Finance leases 25.3 years 25.8 years Weighted average discount rate: Operating leases 3.41 % 3.44 % Finance leases 3.45 % 3.44 % The following summarizes the remaining scheduled future minimum lease payments for operating and finance leases as of December 31, 2023: (In thousands) Operating Leases Finance Leases 2024 $ 1,370 $ 314 2025 1,180 317 2026 1,104 236 2027 1,020 211 2028 771 214 Thereafter 6,984 5,518 Total minimum lease payments 12,429 6,810 Less: amount representing interest (1) 2,451 2,361 Present value of net minimum lease payments (2) $ 9,978 $ 4,449 (1) Amount necessary to reduce net minimum lease payments to present value calculated at the Company's incremental borrowing rate. (2) Reflects the liability reported within other liabilities on the consolidated statements of condition.
Leases	LEASES The Company enters into noncancellable lease arrangements primarily for office space, space for ATM locations and some of its branches. Certain lease arrangements contain clauses requiring increasing rental payments over the lease term, which may be linked to an index (commonly the Consumer Price Index) or contractually stipulated. The Company's lease agreements do not contain any material residual value guarantees or material restrictive covenants. The Company entered into a lease arrangement with two of its employees as landlords. The lease was renewed for a period of five years, expiring in 2024, at which time a five-year extension period is available at the option of the Company. The lease arrangement contains certain termination clauses whereby the Company has the right to terminate the lease arrangement, as well as a right to terminate the lease after two years with the required notice without penalty. The Company entered into a lease agreement in 2019 to rent office space as a sub-tenant from another company in which a director of the Company serves as the Chairman and Chief Executive Officer of the other company. The term of the lease is through 2027. The following ROU assets and lease liabilities have been reported within other assets and other liabilities on the consolidated statements of condition as of the dates indicated: December 31, 2023 2022 (In thousands) Consolidated Statements of Condition Operating Leases Finance Leases Total Operating Leases Finance Leases Total ROU assets Other Assets $ 11,497 $ 4,252 $ 15,749 $ 12,324 $ 4,485 $ 16,809 Lease liabilities Other Liabilities 9,978 4,449 14,427 10,718 4,616 15,334 In accordance with ASC 842, the components of lease expense for the periods indicated were as follows: For the Year Ended (In thousands) 2023 2022 2021 Operating lease cost (1) $ 1,531 $ 1,488 $ 1,474 Finance lease cost: Amortization of ROU assets 233 233 233 Interest on lease liabilities (2) 147 150 154 Total finance lease cost 380 383 387 Total lease cost (3) $ 1,911 $ 1,871 $ 1,861 (1) Includes immaterial short-term and variable lease costs, but excludes common area maintenance costs. (2) Includes immaterial variable lease costs. (3) Reported within net occupancy costs on the consolidated statements of income. Supplemental cash flow information and non-cash activity related to leases was as follows for the periods indicated: For the Year Ended (In thousands) 2023 2022 2021 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 1,387 $ 1,391 $ 1,355 Operating cash flows from finance leases 144 149 154 Financing cash flows from finance leases 168 160 152 ROU assets obtained in exchange for new lease obligations: Operating leases $ 165 $ 764 $ 106 Finance leases — — — Supplemental information related to leases was as follows as of the dates indicated: December 31, 2023 2022 Weighted average remaining lease term: Operating leases 13.2 years 13.9 years Finance leases 25.3 years 25.8 years Weighted average discount rate: Operating leases 3.41 % 3.44 % Finance leases 3.45 % 3.44 % The following summarizes the remaining scheduled future minimum lease payments for operating and finance leases as of December 31, 2023: (In thousands) Operating Leases Finance Leases 2024 $ 1,370 $ 314 2025 1,180 317 2026 1,104 236 2027 1,020 211 2028 771 214 Thereafter 6,984 5,518 Total minimum lease payments 12,429 6,810 Less: amount representing interest (1) 2,451 2,361 Present value of net minimum lease payments (2) $ 9,978 $ 4,449 (1) Amount necessary to reduce net minimum lease payments to present value calculated at the Company's incremental borrowing rate. (2) Reflects the liability reported within other liabilities on the consolidated statements of condition.

Mortgage Banking

Mortgage Banking	12 Months Ended
Mortgage Banking	Dec. 31, 2023
Transfers and Servicing [Abstract]
Mortgage Banking	MORTGAGE BANKING Loans Sold For the years ended December 31, 2023, 2022 and 2021, the Company sold $184.8 million, $152.7 million and $471.5 million, respectively, of residential mortgage loans on the secondary market, which resulted in a net gain on sale of loans (net of costs, including direct and indirect origination costs) of $1.6 million, $3.4 million, and $13.3 million, respectively. Loans Held for Sale At December 31, 2023 and 2022, the Company had identified and designated loans with an unpaid principal balance of $10.2 million and $5.3 million, respectively, as held for sale. The Company has elected the fair value option of accounting for its loans designated as held for sale, and, at December 31, 2023 and 2022, the unrealized gain (loss) recorded was $168,000 and ($62,000), respectively. The unrealized gain or loss on its loans held for sale portfolio was driven by changes in market interest rates and not due to deteriorated credit quality as this risk is mitigated by the short duration between the time of loan closing and transfer of the financial assets to the secondary market investor. Included within the Company's mortgage banking income, net on the consolidated statements of income for the years ended December 31, 2023, 2022 and 2021 was the change in unrealized gains (losses) on loans held for sale of $231,000, ($91,000) and ($1.0) million, respectively. The Company mitigates its interest rate exposure on its loans designated as held for sale through forward delivery commitments with certain approved secondary market investors at the onset of the mortgage origination process, typically on a “best-efforts” basis. For the years ended December 31, 2023, 2022 and 2021, net unrealized (losses) gains from the change in fair value on its forward delivery commitments were ($195,000), $140,000, and ($35,000), respectively. Refer to Note 12 for further discussion of the Company's forward delivery commitments. Servicing Assets At December 31, 2023 and 2022, the Company's unpaid principal balances on its servicing assets were $365.9 million and $389.4 million, respectively. For the years ended December 31, 2023, 2022 and 2021, the Company recorded servicing fee income for its servicing assets of $1.2 million, $1.2 million and $1.3 million, respectively, which was presented in mortgage banking income, net on the consolidated statements of income. The Company's servicing assets, net of a valuation allowance, at December 31, 2023 and 2022 was $2.3 million and $2.5 million, respectively. Servicing assets, net of a valuation allowance, are presented in other assets on the consolidated statements of condition. The Company obtains third party valuations of its servicing assets portfolio quarterly. The servicing assets valuation is based on loan level data stratified by note rate of the underlying loans to determine its amortization and fair value. A discounted cash flow model is used to value each servicing asset strata and it incorporates current market assumption commonly used by buyers of these types of mortgage production in U.S. servicing markets. The calculated valuation using the discounted cash flow method is then compared to recent servicing trades on portfolios with similar characteristics in the U.S. The valuation model utilizes a variety of assumptions, the most significant of which are loan prepayment assumptions and the discount rate used to discount future cash flows. At December 31, 2023 and 2022, the prepayment assumption used within the valuation model was 7.5% for both years, and the discount rate was 10.2% and 9.6%, respectively. At December 31, 2023, the estimated effect of a 10% and 20% increase to the prepayment assumption was a decrease of $118,000 and $229,000, respectively, to the valuation of the servicing assets. At December 31, 2023, the estimated effect of a 100 and 200 basis point increase to the discount rate assumption was a decrease of $163,000 and $314,000, respectively, to the valuation of the servicing assets. Other assumptions include, but are not limited to, delinquency rates, foreclosure rates, and loan servicing cost. The following summarizes servicing assets capitalized and amortized, along with the activity in the related valuation allowance as of and for the periods indicated: As of and For the Year Ended (In thousands) 2023 2022 2021 Servicing Assets: Balance at beginning of year $ 2,458 $ 2,470 $ 2,196 Capitalized servicing right fees upon sale (1) 202 370 790 Amortization charged against mortgage servicing fee income (2) (386) (382) (515) Valuation adjustment — — (1) Balance at end of year $ 2,274 $ 2,458 $ 2,470 Valuation Allowance: Balance at beginning of year $ — $ (1) $ (27) Decrease in impairment reserve — 1 26 Balance at end of year $ — $ — $ (1) Fair value, beginning of year $ 4,412 $ 3,310 $ 2,447 Fair value, end of year $ 4,124 $ 4,412 $ 3,310 (1) Associated income was reported within mortgage banking income, net on the consolidated statements of income. (2) Associated amortization expense was reported within mortgage banking income, net on the consolidated statements of income. Servicer Net Worth and Liquidity Requirements. The Bank, as a servicer of loans, must maintain certain net worth and liquidity requirements for certain agencies and certain secondary market investors. As a lender and servicer of Federal Housing Authority (“FHA”) loans, the Bank is required to maintain a minimum net worth of $1.0 million plus 1.0% of total FHA loans exceeding $25.0 million (“minimum net worth required”) and maintain liquid assets equal to at least 20.0% of its minimum net worth required. The Bank is required to maintain a minimum net worth of $2.5 million plus 25 basis points of the unpaid principal balance of serviced loans and must meet the minimum regulatory capital requirement to be classified as “well capitalized” by both the Federal National Mortgage Association (“FNMA”) and FHLMC. Should the Bank fail to maintain the net worth and liquidity requirements above, the secondary market investor may take remedial action and the Company may lose the right to service the loans, which may result in an impairment of its servicing assets and/or loss of revenue. At December 31, 2023 and 2022, the Bank met all of the aforementioned minimum net worth, regulatory capital, and liquidity requirements. Refer to Note 14 for further details of the Company and Bank's regulatory capital requirements at December 31, 2023 and 2022.

Deposits

Deposits	12 Months Ended
Deposits	Dec. 31, 2023
Deposits [Abstract]
Deposits	DEPOSITS The following is a summary of the scheduled maturities of time deposits ( i.e . CDs) as of the dates indicated: December 31, (In thousands) 2023 2022 1 year or less $ 564,670 $ 206,621 Over 1 year to 2 years 24,970 59,571 Over 2 years to 3 years 10,382 18,047 Over 3 years to 4 years 4,565 9,066 Over 4 years to 5 years 3,144 5,211 Over 5 years 1,772 1,935 Total $ 609,503 $ 300,451 CDs issued in amounts that meet or exceed the FDIC insurance limit of $250,000 totaled $170.2 million and $84.5 million at December 31, 2023 and 2022, respectively. The Company has pledged assets as collateral covering certain deposits in the amount of $166.0 million and $378.1 million at December 31, 2023 and 2022, respectively. The amount of overdraft deposits that were reclassified as loans at December 31, 2023 and 2022 was $938,000 and $723,000, respectively. At December 31, 2023 and 2022, the Company, in the normal course of business, had deposits from certain officers, directors and their associated companies totaling $60.4 million and $62.7 million, respectively.

Borrowings

Borrowings	12 Months Ended
Borrowings	Dec. 31, 2023
Debt Disclosure [Abstract]
Borrowings	BORROWINGS The following table summarizes the Company's short-term borrowings and junior subordinated debentures as presented on the consolidated statements of condition for the dates indicated. At December 31, 2023 and 2022, the Company did not have any long-term borrowings. December 31, 2023 Contractual Maturity December 31, (Dollars in thousands) Outstanding Balance Weighted 2024 2025 2026 2027 2028 Thereafter Outstanding Balance Weighted Short-Term Borrowings: Customer repurchase agreements (1) $ 200,657 1.56 % $ 200,657 $ — $ — $ — $ — $ — $ 196,451 1.00 % FHLBB and correspondent bank overnight borrowings (2) 149,950 5.53 % 149,950 — — — — — 68,725 4.78 % Bank term funding program 135,000 4.70 % 135,000 — — — — — — — % Total short-term borrowings $ 485,607 3.66 % $ 485,607 $ — $ — $ — $ — $ — $ 265,176 1.98 % Junior Subordinated Debentures: CCTA (2) 36,083 4.82 % — — — — — 36,083 36,083 4.62 % UBCT (2) 8,248 4.65 % — — — — — 8,248 8,248 5.39 % Total junior subordinated debentures $ 44,331 4.79 % $ — $ — $ — $ — $ — $ 44,331 $ 44,331 4.76 % (1) Refer to Note 10 for further discussion of customer repurchase agreements. (2) The Company has interest rate swap contracts on certain borrowings. Refer to Note 12 for further discussion of derivative instruments. FHLBB Borrowings The terms of the Company's outstanding FHLBB borrowings, including overnight funding, were as follows for the dates indicated: December 31, (Dollars in thousands) 2023 2022 Stated Maturity Outstanding Balance Weighted Average Contractual Rate Outstanding Balance Weighted Average Contractual Rate January 2024 $ 99,950 5.54 % $ 18,725 4.38 % March 2024 50,000 5.51 % 50,000 4.93 % Total $ 149,950 $ 68,725 FHLBB borrowings, if any, are collateralized by a blanket lien on qualified collateral consisting primarily of loans with first mortgages secured by one-to-four family properties, certain commercial real estate loans, certain pledged investment securities and other qualified assets. The carrying value of residential real estate and commercial loans pledged as collateral was $1.9 billion and $1.8 billion at December 31, 2023 and 2022, respectively. The carrying value of investment securities pledged as collateral at the FHLBB was $4.3 million and $22,000 at December 31, 2023 and 2022, respectively. At December 31, 2023, the Company had a notional amount of $125.0 million in interest rate swap agreements on its FHLBB borrowings, including a $50.0 million forward-starting interest rate swap agreement beginning January 17, 2024. Further discussion on the terms and accounting for the interest rate swap agreements is included within Note 12 of the consolidated financial statements. Bank Term Funding Program (“BTFP”) In March 2023, the FRB created the BTFP in response to several well-publicized bank failures to make additional funding available to depository institutions to help assure banks have the ability to meet the needs of all their depositors. The BTFP offers loans of up to one year in length to depository institutions pledging any collateral eligible for purchase by the FRB in open market operations, such as U.S. Treasuries, U.S. agency securities, and U.S. agency MBS, with the assets being valued at par. The interest rate for term advances under the BTFP is the one-year overnight index swap rate plus ten basis points. The interest rated is fixed for a period of one year, without penalty for prepayment, including refinancing under the BTFP. Advances may be made under the BTFP for a period of one-year until March 11, 2024. In May 2023, the Company executed a $135.0 million advance under the BTFP for a period of one year at a fixed rate of 4.70%. The Company leveraged the BTFP as it provided lower-cost alternative funding and improved the Company’s liquidity position, while simultaneously improving its interest rate risk position given the fixed rate feature and the ability to repay the borrowing without penalty. At December 31, 2023, the Company maintained the advance of $135.0 million under the BTFP. At December 31, 2023, the Company had pledged as collateral under the BTFP investment securities with a carrying value of $160.9 million. In January 2024, the Company prepaid its existing $135.0 million advance under the BTFP and added three new tranches under the BTFP totaling $225.0 million at a fixed interest rate of 4.76%. The Company refinanced its existing advance under the BTFP and added additional advances to leverage the terms of the program and provide lower-cost alternative funding that is beneficial for the Company’s liquidity position and interest rate risk position. Junior Subordinated Debentures In April 2006, the Company formed CCTA, which issued and sold trust preferred securities to the public. The Company received $36.1 million from the issuance of the trust preferred securities in return for junior subordinated debentures issued by the Company to CCTA. The Company owns all of the $1.1 million of outstanding common securities of CCTA and was presented within other assets on the consolidated statements of condition. The contract interest rate of the trust preferred securities was three-month LIBOR plus 140 basis points, and in accordance with the LIBOR Act effective June 30, 2023, the index transitioned to three month CME term SOFR plus the spread adjustment of 26.161 basis points. At December 31, 2023 and 2022, the interest rate on these trust preferred securities was 6.99% and 5.07%, respectively. The proceeds from the offering were used to repurchase Company common stock under the tender offer completed in May 2006. The trust preferred securities, which pay interest quarterly at the same rate as the junior subordinated debentures held by CCTA, are mandatorily redeemable on June 30, 2036, or may be redeemed by CCTA at par at any time. In connection with an acquisition in 2008, the Company assumed $8.0 million of trust preferred securities, held through a Delaware trust affiliate, UBCT. In 2006, an aggregate principal amount of $8.2 million of 30-year junior subordinated debt securities were issued to UBCT. The Company owns all of the $248,000 of outstanding common securities of UBCT, and was presented within other assets on the consolidated statements of condition. The Company is obligated to pay interest on their principal sum quarterly. The contract interest rate of the trust preferred securities was three-month LIBOR plus 1.42%, and in accordance with the LIBOR Act effective June 30, 2023 the index transitioned to three month CME term SOFR plus the spread adjustment of 26.161 basis points. At December 31, 2023 and 2022, the interest rate on these trust preferred securities was 7.08% and 5.50%, respectively. The debt securities mature on April 7, 2036, but may be redeemed by the Company at par, in whole or in part, on any interest payment date. The debt securities may also be redeemed by the Company in whole or in part, within 90 days of the occurrence of certain special redemption events. CCTA and UBCT are Delaware statutory trusts created for the sole purpose of issuing trust preferred securities and investing the proceeds in junior subordinated debentures of the Company. The junior subordinated debentures are the sole assets of the trusts. The Company is the owner of all of the common securities of CCTA and UBCT and fully and unconditionally guarantees each trust’s securities obligations. In accordance with GAAP, CCTA and UBCT are treated as unconsolidated subsidiaries. The common stock investment in the statutory trusts is included in other assets on the consolidated statements of condition. At December 31, 2023, $43.0 million of the trust preferred securities were included in the Company’s total Tier 1 capital and amounted to 8.0% of Tier 1 capital of the Company, or 107 basis points of the Tier 1 capital ratio. At December 31, 2023, the Company had a notional amount of $43.0 million in interest rate swap agreements on its junior subordinated debentures. Further discussion on the terms and accounting for the interest rate swap agreements is included within Note 12 of the consolidated financial statements. Interest expense on the subordinated debentures, including the effective portion of the associated interest rate swaps on these debt instruments reclassified from OCI into earnings, totaled $2.2 million, $2.1 million, and $2.5 million for the years ended December 31, 2023, 2022 and 2021, respectively. Refer to Note 12 of the consolidated financial statements for information pertaining to the reclassification of OCI into earnings on the interest rate swaps. Credit Lines At December 31, 2023, the Company has the following lines of credit available to it, for which it had no outstanding balances: • The Bank had an available line of credit with the FHLBB of $9.9 million at December 31, 2023 and 2022. This line of credit serves as overdraft protection should the Company overdraw its account with the FHLBB. The interest rate for this line of credit is set daily by the FHLBB. The line is secured by pledged loan collateral. • The Company, through the Bank, has an unsecured $50.0 million line of credit with US Bank for which the interest rate is set daily by US Bank. • The Company, through the Bank, has an unsecured $35.0 million line of credit with PNC Bank for which the interest rate is set daily by PNC Bank. • The Company, through the Bank, has a secured line of credit of $39.4 million through the FRB's Discount Window for which the interest rate is set by the FRB daily. At December 31, 2023, the Bank pledged investment securities of $47.5 million.

Repurchase Agreements

Repurchase Agreements	12 Months Ended
Repurchase Agreements	Dec. 31, 2023
Banking and Thrift, Other Disclosure [Abstract]
Repurchase Agreements	REPURCHASE AGREEMENTS The Company can raise additional liquidity by entering into repurchase agreements at its discretion. In a security repurchase agreement transaction, the Company will generally sell a security, agreeing to repurchase either the same or substantially identical security on a specified later date, at a greater price than the original sales price. The difference between the sale price and purchase price is the cost of the proceeds, which is recorded as interest expense on the consolidated statements of income. The securities underlying the agreements are delivered to counterparties as security for the repurchase obligations. Because the securities are treated as collateral and the agreement does not qualify for a full transfer of effective control, the transactions do not meet the criteria to be classified as sales, and are therefore considered secured borrowing transactions for accounting purposes. Payments on such borrowings are interest only until the scheduled repurchase date. In a repurchase agreement the Company is subject to the risk that the purchaser may default at maturity and not return the securities underlying the agreements. In order to minimize this potential risk, the Company either deals with established firms when entering into these transactions or with customers whose agreements stipulate that the securities underlying the agreement are not delivered to the customer and instead are held in segregated safekeeping accounts by the Company's safekeeping agents. The table below sets forth information regarding the Company’s repurchase agreements accounted for as secured borrowings, allocated by source of collateral, as of the dates indicated: December 31, (In thousands) 2023 2022 Customer Repurchase Agreements (1)(2) : Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises $ 179,809 $ 99,105 Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises 20,848 94,328 Obligations of states and political subdivisions — 3,018 Total $ 200,657 $ 196,451 (1) Presented within short-term borrowings on the consolidated statements of condition. (2) All customer repurchase agreements mature continuously or overnight for the dates indicated. At December 31, 2023 and 2022, certain customers held CDs totaling $396,000 and $616,000, respectively, that were collateralized by CMO and MBS securities that were overnight repurchase agreements.

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
Commitments and Contingencies	Dec. 31, 2023
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	COMMITMENTS AND CONTINGENCIES Commitments In the normal course of business, the Company is a party to both on- and off-balance sheet financial instruments involving, to varying degrees, elements of credit risk and interest rate risk in addition to the amounts recognized in the consolidated statements of condition. The following is a summary of the Company's contractual off-balance sheet commitments as of the dates indicated: December 31, (In thousands) 2023 2022 Commitments to extend credit $ 706,719 $ 817,772 Standby letters of credit 5,998 6,801 Total $ 712,717 $ 824,573 The Company’s commitments to extend credit from its lending activities do not necessarily represent future cash requirements since certain of these instruments may expire without being funded and others may not be fully drawn upon. These commitments are subject to the Company’s credit approval process, including an evaluation of the customer’s creditworthiness and related collateral requirements. Commitments generally have fixed expiration dates or other termination clauses. Standby letters of credit are conditional commitments issued to guarantee the performance of a borrower to a third party. In the event of nonperformance by the borrower, the Company would be required to fund the commitment and would be entitled to the underlying collateral, if applicable, which generally consists of pledges of business assets including, but not limited to, accounts receivable, inventory, plant and equipment, and/or real estate. The maximum potential future payments are limited to the contractual amount of the commitment. The Company establishes an ACL on off-balance sheet credit exposures for its contractual off-balance sheet commitments, except those that are unconditionally cancellable by the Company. As of December 31, 2023 and 2022, the ACL on off-balance sheet credit exposures was $2.4 million and $3.3 million, respectively. The ACL on off-balance sheet credit exposures was presented within accrued interest and other liabilities on the consolidated statements of condition. For the years ended December 31, 2023, 2022 and 2021, the (credit) provision for credit losses on off-balance sheet credit exposures was ($912,000), $70,000 and $627,000, respectively. Refer to Note 1 of the consolidated financial statements for further discussion of the Company's accounting policy for the ACL on off-balance sheet credit exposures. Legal Contingencies In the normal course of business, the Company and its subsidiaries are subject to pending and threatened litigation, claims investigations and legal and administrative cases and proceedings. Although the Company is not able to predict the outcome of such actions, after reviewing pending and threatened actions with counsel, management believes that, based on the information currently available, the outcome of such actions, individually or in the aggregate, will not have a material adverse effect on the Company’s consolidated financial statements. Reserves are established for legal claims only when losses associated with the claims are judged to be probable, and the loss can be reasonably estimated. Assessments of litigation exposure are difficult because they involve inherently unpredictable factors including, but not limited to: whether the proceeding is in the early stages; whether damages are unspecified, unsupported, or uncertain; whether there is a potential for punitive or other pecuniary damages; whether the matter involves legal uncertainties, including novel issues of law; whether the matter involves multiple parties and/or jurisdictions; whether discovery has begun or is not complete; whether meaningful settlement discussions have commenced; and whether the lawsuit involves class allegations. In many lawsuits and arbitrations, it is not possible to determine whether a liability has been incurred or to estimate the ultimate or minimum amount of that liability until the case is close to resolution, in which case a reserve will not be recognized until that time. Assessments of class action litigation, which is generally more complex than other types of litigation, are particularly difficult, especially in the early stages of the proceeding when it is not known whether a class will be certified or how a potential class, if certified, will be defined. As a result, the Company may be unable to estimate reasonably possible losses with respect to every litigation matter it faces. The Company did not have any material loss contingencies that were provided for and/or that are required to be disclosed as of December 31, 2023 and 2022.

Derivatives and Hedging

Derivatives and Hedging	12 Months Ended
Derivatives and Hedging	Dec. 31, 2023
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives and Hedging	DERIVATIVES AND HEDGING The Company is exposed to certain risk arising from both its business operations and economic conditions. The Company principally manages its exposures to a wide variety of business and operational risks through management of its core business activities. The Company manages economic risks, including interest rate, liquidity, and credit risk primarily by managing the amount, sources, and duration of its assets and liabilities and the use of derivative financial instruments. Specifically, the Company enters into derivative financial instruments to manage exposures that arise from business activities that result in the receipt or payment of future known and uncertain cash amounts, the value of which are determined by interest rates. The Company’s credit derivatives result from loan participation arrangements, and, therefore, are not used to manage interest rate risk in the Company’s assets or liabilities. Derivatives Designated as Hedging Instruments - Hedges of Interest Rate Risk Interest Rate Contracts - Cash Flow Hedges. The Company’s objectives in using interest rate derivatives are to add stability to interest income and expense and to manage its exposure to interest rate movements. To accomplish this objective, the Company primarily uses interest rate swaps as part of its interest rate risk management strategy. Interest rate swaps designated as cash flow hedges involve the receipt of variable amounts from a counterparty in exchange for the Company making fixed rate payments or the receipt of fixed rate amounts from a counterparty in exchange for the Company making variable-rate payments over the life of the agreements without exchange of the underlying notional amount. For the years ended December 31, 2023 and 2022, such derivatives were used to hedge the variable cash flows associated with existing variable-rate assets or liabilities or forecasted issuances of debt. For derivatives designated and that qualify as cash flow hedges of interest rate risk, the gain or loss on the derivative is recorded in AOCI and subsequently reclassified into interest expense or interest income in the same period(s) during which the hedged transaction affects earnings. Amounts reported in AOCI related to derivatives will be reclassified to interest expense or interest income as interest payments are made or received on the Company’s variable-rate liabilities or assets. The Company estimates that an additional $2.5 million will be reclassified as a decrease to interest expense and an additional $1.6 million will be reclassified as a decrease to interest income over the next 12 months. Interest Rate Contracts - Fair Value Hedges. Derivatives designated as fair value hedges are utilized to mitigate the risk of changes in the fair values of recognized assets and liabilities. The Company uses interest rate contracts in this manner to manage its exposure to changes in the fair value of hedged items caused by changes in interest rates. Changes in the fair value of the derivatives and changes in the fair value of the hedged item due to changes in the hedged risk are recognized in earnings in the same line item. If a hedge is terminated, but the hedged item was not derecognized, all remaining adjustments to the carrying amount of the hedged item are amortized over a period that is consistent with the amortization of other discounts or premiums associated with the hedged item. Derivatives not Designated as Hedges Customer Loan Swaps. Derivatives not designated as hedges are not speculative and result from a service the Company provides to certain customers. The Company executes interest rate swaps with commercial banking customers to facilitate their respective risk management strategies. Those interest rate swaps are simultaneously hedged by offsetting derivatives that the Company executes with a third party, such that the Company minimizes its net risk exposure resulting from such transactions. As the interest rate derivatives associated with this program do not meet the strict hedge accounting requirements, changes in the fair value of both the customer derivatives and the offsetting derivatives are recognized directly in earnings. Fixed Rate Mortgage Interest Rate Lock Commitments. As part of the origination process of a residential loan, the Company may enter into rate lock agreements with its borrower, which is considered an interest rate lock commitment. If the Company intends to sell the loan upon origination, it will account for the interest rate lock commitment as a derivative. Forward Delivery Commitments. The Company typically enters into a forward delivery commitment with a secondary market investor, which has been approved by the Company within its normal governance process, at the onset of the loan origination process. The Company may enter into these arrangements with the secondary market investors on a “best effort“ or “mandatory delivery” basis. The Company's normal practice is typically to enter into these arrangements on a "best effort” basis. The Company enters into these arrangements with the secondary market investors to manage its interest rate exposure. The Company accounts for the forward delivery commitment as a derivative upon origination of a loan identified as held for sale. Risk Participation Agreements. The Company’s existing credit derivatives result from participations in or out of interest rate swaps provided by or to external lenders as part of loan participation arrangements, therefore, are not used to manage interest rate risk in the Company’s assets or liabilities. Derivatives not designated as hedges are not speculative and result from a service the Company provides to certain lenders which participate in loans. The following table presents the fair value of the Company's derivative financial instruments as well as their classification on the consolidated statements of condition as of the dates indicated: Derivative Assets Derivative Liabilities (In thousands) Notional Location Fair Notional Location Fair December 31, 2023 Derivatives designated as hedging instruments: Interest rate contracts (1) $ 435,000 Other assets $ 12,206 $ 258,000 Accrued interest and other liabilities $ 3,387 Total derivatives designated as hedging instruments $ 12,206 $ 3,387 Derivatives not designated as hedging instruments: Customer loan swaps (1) $ 298,143 Other assets $ 10,699 $ 298,143 Accrued interest and other liabilities $ 10,748 Risk participation agreements 28,077 Other assets — 52,193 Accrued interest and other liabilities — Fixed Rate mortgage interest rate lock commitments 10,924 Other assets 215 2,092 Accrued interest and other liabilities 11 Forward delivery commitments 3,445 Other assets 51 6,706 Accrued interest and other liabilities 132 Total derivatives not designated as hedging instruments $ 10,965 $ 10,891 December 31, 2022 Derivatives designated as hedging instruments: Interest rate contracts (1) $ 110,000 Other assets $ 13,051 $ 133,000 Accrued interest and other liabilities $ 5,515 Total derivatives designated as hedging instruments $ 13,051 $ 5,515 Derivatives not designated as hedging instruments: Customer loan swaps (1) $ 260,130 Other assets $ 14,802 $ 260,130 Accrued interest and other liabilities $ 14,850 Risk participation agreements 21,818 Other assets — 44,438 Accrued interest and other liabilities — Fixed Rate mortgage interest rate lock commitments 4,493 Other assets 31 9,597 Accrued interest and other liabilities 87 Forward delivery commitments 5,259 Other assets 114 — Accrued interest and other liabilities — Total derivatives not designated as hedging instruments $ 14,947 $ 14,937 (1) Reported fair values include accrued interest receivable and payable. The following table shows the carrying amount and associated cumulative basis adjustments related to the application of hedge accounting that is included in the carrying amount of hedged assets and liabilities in fair value hedging relationships: Location in Consolidated Statements of Condition Carrying Amount of Hedged Assets/(Liabilities) Cumulative Fair Value Hedging Adjustment in the Carrying Amount of the Hedged Assets/(Liabilities) (Dollars in thousands) December 31, 2023 December 31, 2022 December 31, 2023 December 31, 2022 Loans (1) $ 374,032 $ — $ (968) $ — Total $ 374,032 $ — $ (968) $ — (1) These amounts include the amortized cost basis of residential real estate loans that were used to designate hedging relationships in which the hedged item is the stated amount of assets in the closed portfolio anticipated to be outstanding for the designated hedged period. At December 31, 2023 and 2022, the amortized cost basis of the residential real estate loans used in these hedging relationships was $806.5 million and $0, respectively, and the amount of the designated hedged residential loans was $375.0 million and $0, respectively. The table below presents the effect of cash flow hedge accounting, before tax, on AOCI for the periods indicated: (Dollars in thousands) Amount of Gain (Loss) Recognized in OCI on Derivative Amount of Gain (Loss) Recognized in OCI Included Component Amount of Gain (Loss) Recognized in OCI Excluded Component Location of Gain (Loss) Recognized Amount of Gain (Loss) Reclassified from AOCI into Income Amount of Gain (Loss) Reclassified from AOCI into Income Included Component Amount of Gain (Loss) Reclassified from AOCI into Income Excluded Component For the Year Ended December 31, 2023 Interest rate contracts $ (795) $ (795) $ — Interest and fees on loans $ (3,446) $ (3,446) $ — Interest rate contracts (1) (1) — Interest on deposits 306 306 — Interest rate contracts 455 455 — Interest on borrowings 2,351 2,351 — Interest rate contracts 520 520 — Interest on junior subordinated debentures 707 707 — Total $ 179 $ 179 $ — $ (82) $ (82) $ — For the Year Ended December 31, 2022 Interest rate contracts $ (6,147) $ (6,147) $ — Interest and fees on loans $ 5 $ 5 $ — Interest rate contracts 5,892 5,892 — Interest on deposits 441 441 — Interest rate contracts 2,455 2,455 — Interest on borrowings 551 551 — Interest rate contracts 7,838 7,838 — Interest on junior subordinated debentures (729) (729) — Total $ 10,038 $ 10,038 $ — $ 268 $ 268 $ — For the Year Ended December 31, 2021 Interest rate contracts $ (1,697) $ (1,697) $ — Interest and fees on loans $ 1,614 $ 1,614 $ — Interest rate contracts 2,447 2,447 — Interest on deposits (661) (661) — Interest rate contracts 2,237 2,237 — Interest on junior subordinated debentures (1,593) (1,593) — Total $ 2,987 $ 2,987 $ — $ (640) $ (640) $ — The table below presents the effect of cash flow hedge accounting on the consolidated statements of income for the periods indicated: Location and Amount of Gain (Loss) Recognized in Income For the Year Ended 2023 2022 2021 (Dollars in thousands) Interest and Fees on Loans Interest on Deposits Interest on borrowings Interest on Subordinated Debentures Interest and Fees on Loans Interest on Deposits Interest on borrowings Interest on Subordinated Debentures Interest and Fees on Loans Interest on Deposits Interest on Subordinated Debentures Total presented on the consolidated statements of income in which the effects of cash flow hedges are recorded $ 195,379 $ 78,884 $ 12,949 $ 2,150 $ 144,709 $ 20,305 $ 2,649 $ 2,140 $ 125,437 $ 7,920 $ 2,523 Gain (loss) on fair value hedging relationships Interest rate contracts: Hedged items $ (15,613) $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Derivatives designated as hedging instruments $ 20,317 $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Gain (loss) on cash flow hedging relationships Interest rate contracts: Amount of gain (loss) reclassified from AOCI into income $ (3,446) $ 306 $ 2,351 $ 707 $ 5 $ 441 $ 551 $ (729) $ 1,614 $ (661) $ (1,593) Amount of gain (loss) reclassified from AOCI into income - included component $ (3,446) $ 306 $ 2,351 $ 707 $ 5 $ 441 $ 551 $ (729) $ 1,614 $ (661) $ (1,593) Amount of gain (loss) reclassified from AOCI into income - excluded component $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — The table below presents the effect of the Company's derivative financial instruments that are not designated as hedging instruments on the consolidated statements of income for the periods indicated: Amount of Gain (Loss) Recognized in Income Location of Gain (Loss) Recognized in Income For the Year Ended (Dollars in thousands) 2023 2022 2021 Customer loan swaps Other expense $ (1) $ (336) $ (189) Fixed rate mortgage interest rate lock commitments Mortgage banking income, net 109 34 (80) Forward delivery commitments Mortgage banking income, net (195) 140 (35) Total $ (87) $ (162) $ (304) Credit Risk-Related Contingent Features By using derivatives, the Company is exposed to credit risk to the extent that counterparties to the derivative contracts do not perform as required. Should a counterparty fail to perform under the terms of a derivative contract, the Company’s credit exposure on interest rate swaps is limited to the net positive fair value and accrued interest of all swaps with each counterparty. The Company seeks to minimize counterparty credit risk through credit approvals, limits, monitoring procedures, and obtaining collateral, where appropriate. As such, management believes the risk of incurring credit losses on derivative contracts with institutional counterparties is remote. The Company has agreements with its derivative counterparties that contain a provision where if the Company defaults on any of its indebtedness, including default where repayment of the indebtedness has not been accelerated by the lender, then the Company could also be declared in default on its derivative obligations. In addition, the Company also has agreements with certain of its derivative counterparties that contain a provision where if the Company fails to maintain its status as a well- capitalized institution, then the counterparty could terminate the derivative position(s) and the Company could be required to settle its obligations under the agreements. As of December 31, 2023 and 2022, the fair value of derivatives in a net liability position, which includes accrued interest but excludes any adjustment for non-performance risk, related to these agreements was $10.8 million and $14.8 million, respectively. As of December 31, 2023 and 2022, the Company has minimum collateral posting thresholds with certain of its derivative counterparties and has posted cash collateral of $0 and $0, respectively. If the Company had breached any of these provisions at December 31, 2023 or 2022, it could have been required to settle its obligations under the agreements at their termination value of $10.8 million and $14.8 million, respectively. The Company does not offset the carrying value for derivative instruments or repurchase agreements on the consolidated statements of condition. The Company does net the amount recognized for the right to reclaim cash collateral against the obligation to return cash collateral arising from instruments executed with the same counterparty under a master netting arrangement. Collateral legally required to be pledged or received is monitored and adjusted as necessary. Refer to Note 10 for further discussion of repurchase agreements and Note 12 for further discussion of derivative instruments. The following table presents the Company's derivative positions and repurchase agreements, and the potential effect of netting arrangements on its consolidated statements of condition, as of the dates indicated: Gross Amount Not Offset in the Consolidated Statements of Condition (In thousands) Gross Amount Recognized in the Consolidated Statements of Condition Gross Amount Offset in the Consolidated Statements of Condition Net Amount Presented in the Consolidated Statements of Condition Financial Instruments Pledged (Received) (1) Cash Collateral Pledged (Received) (1) Net Amount December 31, 2023 Derivative assets: Customer loan swaps - dealer bank (2) $ 9,168 $ — $ 9,168 $ — $ (8,800) $ 368 Customer loan swaps - commercial customer (3) 1,531 — 1,531 — — 1,531 Interest rate contracts (2) 12,206 — 12,206 — (10,071) 2,135 Total $ 22,905 $ — $ 22,905 $ — $ (18,871) $ 4,034 Derivative liabilities: Customer loan swaps - commercial customer (3) $ 10,748 $ — 10,748 $ — $ — $ 10,748 Interest rate contracts (2) 3,387 — 3,387 — 3,387 — Total $ 14,135 $ — $ 14,135 $ — $ 3,387 $ 10,748 Customer repurchase agreements $ 200,657 $ — $ 200,657 $ 200,657 $ — $ — December 31, 2022 Derivative assets: Customer loan swaps - dealer bank (2) $ 14,802 $ — $ 14,802 $ — $ — $ 14,802 Interest rate contracts (2) 13,051 — 13,051 — (10,915) 2,136 Total $ 27,853 $ — $ 27,853 $ — $ (10,915) $ 16,938 Derivative liabilities: Customer loan swaps - commercial customer (3) $ 14,850 $ — 14,850 $ — $ — $ 14,850 Interest rate contracts (2) 5,515 — 5,515 — 5,515 — Total $ 20,365 $ — $ 20,365 $ — $ 5,515 $ 14,850 Customer repurchase agreements $ 196,451 $ — $ 196,451 $ 196,451 $ — $ — (1) The amount presented was the lesser of the amount pledged (received) or the net amount presented in the consolidated statements of condition. (2) The Company maintains master netting arrangements with each counterparty and settles collateral on a net basis for all contracts.

Balance Sheet Offsetting

Balance Sheet Offsetting	12 Months Ended
Balance Sheet Offsetting	Dec. 31, 2023
Offsetting [Abstract]
Balance Sheet Offsetting	DERIVATIVES AND HEDGING The Company is exposed to certain risk arising from both its business operations and economic conditions. The Company principally manages its exposures to a wide variety of business and operational risks through management of its core business activities. The Company manages economic risks, including interest rate, liquidity, and credit risk primarily by managing the amount, sources, and duration of its assets and liabilities and the use of derivative financial instruments. Specifically, the Company enters into derivative financial instruments to manage exposures that arise from business activities that result in the receipt or payment of future known and uncertain cash amounts, the value of which are determined by interest rates. The Company’s credit derivatives result from loan participation arrangements, and, therefore, are not used to manage interest rate risk in the Company’s assets or liabilities. Derivatives Designated as Hedging Instruments - Hedges of Interest Rate Risk Interest Rate Contracts - Cash Flow Hedges. The Company’s objectives in using interest rate derivatives are to add stability to interest income and expense and to manage its exposure to interest rate movements. To accomplish this objective, the Company primarily uses interest rate swaps as part of its interest rate risk management strategy. Interest rate swaps designated as cash flow hedges involve the receipt of variable amounts from a counterparty in exchange for the Company making fixed rate payments or the receipt of fixed rate amounts from a counterparty in exchange for the Company making variable-rate payments over the life of the agreements without exchange of the underlying notional amount. For the years ended December 31, 2023 and 2022, such derivatives were used to hedge the variable cash flows associated with existing variable-rate assets or liabilities or forecasted issuances of debt. For derivatives designated and that qualify as cash flow hedges of interest rate risk, the gain or loss on the derivative is recorded in AOCI and subsequently reclassified into interest expense or interest income in the same period(s) during which the hedged transaction affects earnings. Amounts reported in AOCI related to derivatives will be reclassified to interest expense or interest income as interest payments are made or received on the Company’s variable-rate liabilities or assets. The Company estimates that an additional $2.5 million will be reclassified as a decrease to interest expense and an additional $1.6 million will be reclassified as a decrease to interest income over the next 12 months. Interest Rate Contracts - Fair Value Hedges. Derivatives designated as fair value hedges are utilized to mitigate the risk of changes in the fair values of recognized assets and liabilities. The Company uses interest rate contracts in this manner to manage its exposure to changes in the fair value of hedged items caused by changes in interest rates. Changes in the fair value of the derivatives and changes in the fair value of the hedged item due to changes in the hedged risk are recognized in earnings in the same line item. If a hedge is terminated, but the hedged item was not derecognized, all remaining adjustments to the carrying amount of the hedged item are amortized over a period that is consistent with the amortization of other discounts or premiums associated with the hedged item. Derivatives not Designated as Hedges Customer Loan Swaps. Derivatives not designated as hedges are not speculative and result from a service the Company provides to certain customers. The Company executes interest rate swaps with commercial banking customers to facilitate their respective risk management strategies. Those interest rate swaps are simultaneously hedged by offsetting derivatives that the Company executes with a third party, such that the Company minimizes its net risk exposure resulting from such transactions. As the interest rate derivatives associated with this program do not meet the strict hedge accounting requirements, changes in the fair value of both the customer derivatives and the offsetting derivatives are recognized directly in earnings. Fixed Rate Mortgage Interest Rate Lock Commitments. As part of the origination process of a residential loan, the Company may enter into rate lock agreements with its borrower, which is considered an interest rate lock commitment. If the Company intends to sell the loan upon origination, it will account for the interest rate lock commitment as a derivative. Forward Delivery Commitments. The Company typically enters into a forward delivery commitment with a secondary market investor, which has been approved by the Company within its normal governance process, at the onset of the loan origination process. The Company may enter into these arrangements with the secondary market investors on a “best effort“ or “mandatory delivery” basis. The Company's normal practice is typically to enter into these arrangements on a "best effort” basis. The Company enters into these arrangements with the secondary market investors to manage its interest rate exposure. The Company accounts for the forward delivery commitment as a derivative upon origination of a loan identified as held for sale. Risk Participation Agreements. The Company’s existing credit derivatives result from participations in or out of interest rate swaps provided by or to external lenders as part of loan participation arrangements, therefore, are not used to manage interest rate risk in the Company’s assets or liabilities. Derivatives not designated as hedges are not speculative and result from a service the Company provides to certain lenders which participate in loans. The following table presents the fair value of the Company's derivative financial instruments as well as their classification on the consolidated statements of condition as of the dates indicated: Derivative Assets Derivative Liabilities (In thousands) Notional Location Fair Notional Location Fair December 31, 2023 Derivatives designated as hedging instruments: Interest rate contracts (1) $ 435,000 Other assets $ 12,206 $ 258,000 Accrued interest and other liabilities $ 3,387 Total derivatives designated as hedging instruments $ 12,206 $ 3,387 Derivatives not designated as hedging instruments: Customer loan swaps (1) $ 298,143 Other assets $ 10,699 $ 298,143 Accrued interest and other liabilities $ 10,748 Risk participation agreements 28,077 Other assets — 52,193 Accrued interest and other liabilities — Fixed Rate mortgage interest rate lock commitments 10,924 Other assets 215 2,092 Accrued interest and other liabilities 11 Forward delivery commitments 3,445 Other assets 51 6,706 Accrued interest and other liabilities 132 Total derivatives not designated as hedging instruments $ 10,965 $ 10,891 December 31, 2022 Derivatives designated as hedging instruments: Interest rate contracts (1) $ 110,000 Other assets $ 13,051 $ 133,000 Accrued interest and other liabilities $ 5,515 Total derivatives designated as hedging instruments $ 13,051 $ 5,515 Derivatives not designated as hedging instruments: Customer loan swaps (1) $ 260,130 Other assets $ 14,802 $ 260,130 Accrued interest and other liabilities $ 14,850 Risk participation agreements 21,818 Other assets — 44,438 Accrued interest and other liabilities — Fixed Rate mortgage interest rate lock commitments 4,493 Other assets 31 9,597 Accrued interest and other liabilities 87 Forward delivery commitments 5,259 Other assets 114 — Accrued interest and other liabilities — Total derivatives not designated as hedging instruments $ 14,947 $ 14,937 (1) Reported fair values include accrued interest receivable and payable. The following table shows the carrying amount and associated cumulative basis adjustments related to the application of hedge accounting that is included in the carrying amount of hedged assets and liabilities in fair value hedging relationships: Location in Consolidated Statements of Condition Carrying Amount of Hedged Assets/(Liabilities) Cumulative Fair Value Hedging Adjustment in the Carrying Amount of the Hedged Assets/(Liabilities) (Dollars in thousands) December 31, 2023 December 31, 2022 December 31, 2023 December 31, 2022 Loans (1) $ 374,032 $ — $ (968) $ — Total $ 374,032 $ — $ (968) $ — (1) These amounts include the amortized cost basis of residential real estate loans that were used to designate hedging relationships in which the hedged item is the stated amount of assets in the closed portfolio anticipated to be outstanding for the designated hedged period. At December 31, 2023 and 2022, the amortized cost basis of the residential real estate loans used in these hedging relationships was $806.5 million and $0, respectively, and the amount of the designated hedged residential loans was $375.0 million and $0, respectively. The table below presents the effect of cash flow hedge accounting, before tax, on AOCI for the periods indicated: (Dollars in thousands) Amount of Gain (Loss) Recognized in OCI on Derivative Amount of Gain (Loss) Recognized in OCI Included Component Amount of Gain (Loss) Recognized in OCI Excluded Component Location of Gain (Loss) Recognized Amount of Gain (Loss) Reclassified from AOCI into Income Amount of Gain (Loss) Reclassified from AOCI into Income Included Component Amount of Gain (Loss) Reclassified from AOCI into Income Excluded Component For the Year Ended December 31, 2023 Interest rate contracts $ (795) $ (795) $ — Interest and fees on loans $ (3,446) $ (3,446) $ — Interest rate contracts (1) (1) — Interest on deposits 306 306 — Interest rate contracts 455 455 — Interest on borrowings 2,351 2,351 — Interest rate contracts 520 520 — Interest on junior subordinated debentures 707 707 — Total $ 179 $ 179 $ — $ (82) $ (82) $ — For the Year Ended December 31, 2022 Interest rate contracts $ (6,147) $ (6,147) $ — Interest and fees on loans $ 5 $ 5 $ — Interest rate contracts 5,892 5,892 — Interest on deposits 441 441 — Interest rate contracts 2,455 2,455 — Interest on borrowings 551 551 — Interest rate contracts 7,838 7,838 — Interest on junior subordinated debentures (729) (729) — Total $ 10,038 $ 10,038 $ — $ 268 $ 268 $ — For the Year Ended December 31, 2021 Interest rate contracts $ (1,697) $ (1,697) $ — Interest and fees on loans $ 1,614 $ 1,614 $ — Interest rate contracts 2,447 2,447 — Interest on deposits (661) (661) — Interest rate contracts 2,237 2,237 — Interest on junior subordinated debentures (1,593) (1,593) — Total $ 2,987 $ 2,987 $ — $ (640) $ (640) $ — The table below presents the effect of cash flow hedge accounting on the consolidated statements of income for the periods indicated: Location and Amount of Gain (Loss) Recognized in Income For the Year Ended 2023 2022 2021 (Dollars in thousands) Interest and Fees on Loans Interest on Deposits Interest on borrowings Interest on Subordinated Debentures Interest and Fees on Loans Interest on Deposits Interest on borrowings Interest on Subordinated Debentures Interest and Fees on Loans Interest on Deposits Interest on Subordinated Debentures Total presented on the consolidated statements of income in which the effects of cash flow hedges are recorded $ 195,379 $ 78,884 $ 12,949 $ 2,150 $ 144,709 $ 20,305 $ 2,649 $ 2,140 $ 125,437 $ 7,920 $ 2,523 Gain (loss) on fair value hedging relationships Interest rate contracts: Hedged items $ (15,613) $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Derivatives designated as hedging instruments $ 20,317 $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Gain (loss) on cash flow hedging relationships Interest rate contracts: Amount of gain (loss) reclassified from AOCI into income $ (3,446) $ 306 $ 2,351 $ 707 $ 5 $ 441 $ 551 $ (729) $ 1,614 $ (661) $ (1,593) Amount of gain (loss) reclassified from AOCI into income - included component $ (3,446) $ 306 $ 2,351 $ 707 $ 5 $ 441 $ 551 $ (729) $ 1,614 $ (661) $ (1,593) Amount of gain (loss) reclassified from AOCI into income - excluded component $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — The table below presents the effect of the Company's derivative financial instruments that are not designated as hedging instruments on the consolidated statements of income for the periods indicated: Amount of Gain (Loss) Recognized in Income Location of Gain (Loss) Recognized in Income For the Year Ended (Dollars in thousands) 2023 2022 2021 Customer loan swaps Other expense $ (1) $ (336) $ (189) Fixed rate mortgage interest rate lock commitments Mortgage banking income, net 109 34 (80) Forward delivery commitments Mortgage banking income, net (195) 140 (35) Total $ (87) $ (162) $ (304) Credit Risk-Related Contingent Features By using derivatives, the Company is exposed to credit risk to the extent that counterparties to the derivative contracts do not perform as required. Should a counterparty fail to perform under the terms of a derivative contract, the Company’s credit exposure on interest rate swaps is limited to the net positive fair value and accrued interest of all swaps with each counterparty. The Company seeks to minimize counterparty credit risk through credit approvals, limits, monitoring procedures, and obtaining collateral, where appropriate. As such, management believes the risk of incurring credit losses on derivative contracts with institutional counterparties is remote. The Company has agreements with its derivative counterparties that contain a provision where if the Company defaults on any of its indebtedness, including default where repayment of the indebtedness has not been accelerated by the lender, then the Company could also be declared in default on its derivative obligations. In addition, the Company also has agreements with certain of its derivative counterparties that contain a provision where if the Company fails to maintain its status as a well- capitalized institution, then the counterparty could terminate the derivative position(s) and the Company could be required to settle its obligations under the agreements. As of December 31, 2023 and 2022, the fair value of derivatives in a net liability position, which includes accrued interest but excludes any adjustment for non-performance risk, related to these agreements was $10.8 million and $14.8 million, respectively. As of December 31, 2023 and 2022, the Company has minimum collateral posting thresholds with certain of its derivative counterparties and has posted cash collateral of $0 and $0, respectively. If the Company had breached any of these provisions at December 31, 2023 or 2022, it could have been required to settle its obligations under the agreements at their termination value of $10.8 million and $14.8 million, respectively. The Company does not offset the carrying value for derivative instruments or repurchase agreements on the consolidated statements of condition. The Company does net the amount recognized for the right to reclaim cash collateral against the obligation to return cash collateral arising from instruments executed with the same counterparty under a master netting arrangement. Collateral legally required to be pledged or received is monitored and adjusted as necessary. Refer to Note 10 for further discussion of repurchase agreements and Note 12 for further discussion of derivative instruments. The following table presents the Company's derivative positions and repurchase agreements, and the potential effect of netting arrangements on its consolidated statements of condition, as of the dates indicated: Gross Amount Not Offset in the Consolidated Statements of Condition (In thousands) Gross Amount Recognized in the Consolidated Statements of Condition Gross Amount Offset in the Consolidated Statements of Condition Net Amount Presented in the Consolidated Statements of Condition Financial Instruments Pledged (Received) (1) Cash Collateral Pledged (Received) (1) Net Amount December 31, 2023 Derivative assets: Customer loan swaps - dealer bank (2) $ 9,168 $ — $ 9,168 $ — $ (8,800) $ 368 Customer loan swaps - commercial customer (3) 1,531 — 1,531 — — 1,531 Interest rate contracts (2) 12,206 — 12,206 — (10,071) 2,135 Total $ 22,905 $ — $ 22,905 $ — $ (18,871) $ 4,034 Derivative liabilities: Customer loan swaps - commercial customer (3) $ 10,748 $ — 10,748 $ — $ — $ 10,748 Interest rate contracts (2) 3,387 — 3,387 — 3,387 — Total $ 14,135 $ — $ 14,135 $ — $ 3,387 $ 10,748 Customer repurchase agreements $ 200,657 $ — $ 200,657 $ 200,657 $ — $ — December 31, 2022 Derivative assets: Customer loan swaps - dealer bank (2) $ 14,802 $ — $ 14,802 $ — $ — $ 14,802 Interest rate contracts (2) 13,051 — 13,051 — (10,915) 2,136 Total $ 27,853 $ — $ 27,853 $ — $ (10,915) $ 16,938 Derivative liabilities: Customer loan swaps - commercial customer (3) $ 14,850 $ — 14,850 $ — $ — $ 14,850 Interest rate contracts (2) 5,515 — 5,515 — 5,515 — Total $ 20,365 $ — $ 20,365 $ — $ 5,515 $ 14,850 Customer repurchase agreements $ 196,451 $ — $ 196,451 $ 196,451 $ — $ — (1) The amount presented was the lesser of the amount pledged (received) or the net amount presented in the consolidated statements of condition. (2) The Company maintains master netting arrangements with each counterparty and settles collateral on a net basis for all contracts.

Other Comprehensive Income (Los

Other Comprehensive Income (Loss)	12 Months Ended
Other Comprehensive Income (Loss)	Dec. 31, 2023
Equity [Abstract]
Other Comprehensive Income (Loss)	OTHER COMPREHENSIVE INCOME (LOSS) The following tables present a reconciliation of the changes in the components of other comprehensive income and loss for the periods indicated, including the amount of tax (expense) benefit allocated to each component: For the Year Ended 2023 2022 2021 (In thousands) Pre-Tax Tax (Expense) After-Tax Pre-Tax Tax (Expense) After-Tax Pre-Tax Tax (Expense) After-Tax Debt Securities: Change in fair value $ 13,646 $ (2,932) $ 10,714 $ (172,699) $ 37,131 $ (135,568) $ (38,832) $ 8,349 $ (30,483) Less: reclassification adjustment for amortization of securities transferred from AFS to HTM (6,781) 1,458 (5,323) (5,715) 1,229 (4,486) — — — Less: reclassification adjustment for net realized losses (1) (10,310) 2,217 (8,093) (912) 196 (716) — — — Net change in fair value 30,737 (6,607) 24,130 (166,072) 35,706 (130,366) (38,832) 8,349 (30,483) Cash Flow Hedges: Change in fair value 179 (38) 141 10,038 (2,158) 7,880 2,987 (642) 2,345 Less: reclassified AOCI gain (loss) into interest expense (2) 3,364 (723) 2,641 263 (57) 206 (2,254) 485 (1,769) Less: reclassified AOCI gain into interest income (3) (3,446) 741 (2,705) 5 (1) 4 1,614 (347) 1,267 Net change in fair value 261 (56) 205 9,770 (2,100) 7,670 3,627 (780) 2,847 Postretirement Plans: Net actuarial gain (loss) 114 (25) 89 2,859 (614) 2,245 (20) 4 (16) Less: Amortization of net actuarial loss (4) 3 (1) 2 (947) 203 (744) (894) 192 (702) Less: Amortization of net prior service credits (4) 24 (5) 19 24 (5) 19 24 (5) 19 Net gain (loss) on postretirement plans 87 (19) 68 3,782 (812) 2,970 850 (183) 667 Other comprehensive (loss) income $ 31,085 $ (6,682) $ 24,403 $ (152,520) $ 32,794 $ (119,726) $ (34,355) $ 7,386 $ (26,969) (1) Reclassified into net loss on sale of securities in the consolidated statements of income. Refer to Note 2 of the consolidated financial statements for further details. (2) Reclassified into interest on deposits, borrowings and/or junior subordinated debentures on the consolidated statements of income. Refer to Note 12 of the consolidated financial statements for further details. (3) Reclassified into interest and fees on loans on the consolidated statements of income. Refer to Note 12 of the consolidated financial statements for further details. (4) Reclassified into other expenses on the consolidated statements of income. Refer to Note 18 of the consolidated financial statements for further details. The following table presents the changes in each component of AOCI for the periods indicated: (In thousands) Net Unrealized (Losses) Gains on Debt Securities (1) Net Unrealized (Losses) Gains on Cash Flow Hedges (1) Defined Benefit Postretirement Plans (1) AOCI (1) Balance at December 31, 2020 $ 29,310 $ (4,626) $ (3,944) $ 20,740 Other comprehensive income (loss) before reclassifications (30,483) 2,345 — (28,138) Less: Amounts reclassified from AOCI — (502) (667) (1,169) Other comprehensive income (loss) (30,483) 2,847 667 (26,969) Balance at December 31, 2021 (1,173) (1,779) (3,277) (6,229) Other comprehensive income (loss) before reclassifications (126,596) 7,880 — (118,716) Less: Amounts reclassified from AOCI 3,770 210 (2,970) 1,010 Other comprehensive income (loss) (130,366) 7,670 2,970 (119,726) Balance at December 31, 2022 (131,539) 5,891 (307) (125,955) Other comprehensive (loss) income before reclassifications 21,363 141 — 21,504 Less: Amounts reclassified from AOCI (2,767) (64) (68) (2,899) Other comprehensive (loss) income 24,130 205 68 24,403 Balance at December 31, 2023 $ (107,409) $ 6,096 $ (239) $ (101,552) (1) All amounts are net of tax.

Revenue from Contracts with Cus

Revenue from Contracts with Customer	12 Months Ended
Revenue from Contracts with Customer	Dec. 31, 2023
Revenue from Contract with Customer [Abstract]
Revenue from Contracts with Customer	REVENUE FROM CONTRACTS WITH CUSTOMERS The Company has disaggregated its revenue from contracts with customers into categories based on the nature of the revenue. The categorization of revenues from contracts with customer within the scope of ASC 606 closely aligns with the presentation revenue categories presented within non-interest income on the consolidated statements of income. The following table presents the revenue streams with the scope of ASC 606 for the periods indicated: For the Year Ended (In thousands) Location on Consolidated 2023 2022 2021 Debit card interchange income Debit card income $ 12,613 $ 13,340 $ 13,105 Services charges on deposit accounts Service charges on deposit accounts 7,839 7,587 6,626 Fiduciary services income Income from fiduciary services 6,669 6,407 6,516 Investment program income Brokerage and insurance commissions 4,650 4,147 3,913 Other non-interest income Other income 1,796 1,793 1,794 Total non-interest income within the scope of ASC 606 33,567 33,274 31,954 Total non-interest income not in scope of ASC 606 (1) (2,533) 7,428 17,781 Total non-interest income $ 31,034 $ 40,702 $ 49,735 (1) Includes pre-tax losses on the sale of investment securities of $10.3 million, $912,000 and $0, for the years ended December 31, 2023, 2022 and 2021, respectively. In each of the revenue streams identified above, there were no significant judgments made in determining or allocating the transaction price, as the consideration and services are generally explicitly identified in the associated contracts. Additional information related to each revenue stream is discussed below. Debit Card Interchange Income. The Company has separate contracts with intermediaries and earns interchange revenue and incurs related expenses on debit card transactions of its deposit customers. Income earned and expenses incurred by the Company are dependent on its depositors' debit card usage, including depositor spend, transaction type and merchant. The rates earned are determined by the intermediaries. The Company determined that although the contract for which revenues are directly earned is with the intermediary rather than the depositor, that an underlying contract with each depositor is required for the generation of debit card interchange income and it is the depositors' debit card usage that drives the revenues earned and related expenses incurred. The contract with the depositor is day-to-day and can be closed by the customer or the Company at any time. As such, the Company recognizes revenue at the time of the transaction as the performance obligation has been met. The Company's debit card interchange revenue and related expenses are presented on a gross basis as it has control of the specified service prior to transfer to the depositor through the extension of credit. The Company pays to certain depositors cash rewards for debit card usage to promote usage and increase interchange revenue. Because the consideration paid to depositors is not for any separate or distinct service, these costs are accounted for as a reduction of debit card interchange income. For the years ended December 31, 2023, 2022 and 2021, cash rewards totaled $507,000, $525,000 and $477,000, respectively. Service charges on deposit accounts. Deposit-related fees, include, but are not limited to, overdraft income, service charge income, and other fees generated by the depositor relationship with the Company. For each depositor relationship, an agreement and related disclosures outline the terms of the contract between the depositor and the Bank, including the assessment of fees and fee structure for its various products. The contract is day-to-day and can be closed by the customer or the Company at any time. As such, the Company recognizes revenue at the time of the transaction as the performance obligation has been met. Fiduciary services income. The Company, through its wealth management and trust services department, doing business as Camden National Wealth Management, earns fees for its investment management and related services for its clients. Fees earned for its services are largely dependent on assets under management as of the last day of the month and do not contain performance clauses. Should the applicable services contract be terminated by either party, fees for services are earned up to the effective date of contract termination. As such, fiduciary services income is earned and recognized daily. Investment program income. Under an investment program offered by the Company, doing business as Camden Financial Consultants (“Program”), its clients are provided access to brokerage, advisory and insurance products offered through an unaffiliated third party. Certain Company employees are registered securities representatives and/or registered investment advisor representatives of the third party, operating in such capacity under Camden Financial Consultants to provide clients with brokerage, investment advisory and insurance related services. The Company receives a portion of the commissions and fees received by the unaffiliated third party brokerage firm from the sale of investment products and investment advisory services, in accordance with the terms of the contract between the two parties. The revenues earned by the Company are net of administrative expenses and the portion retained by the unaffiliated third party brokerage firm. The Company does not have control of the specified services provided to its clients by the unaffiliated third party brokerage firm under the Program. Revenues earned from Program-related services are presented on the consolidated statements of income on a net basis.

Stock-Based Compensation Plans

Stock-Based Compensation Plans	12 Months Ended
Stock-Based Compensation Plans	Dec. 31, 2023
Share-Based Payment Arrangement [Abstract]
Stock-Based Compensation Plans	STOCK-BASED COMPENSATION PLANS On April 26, 2022, the shareholders of the Company approved the Camden National Corporation 2022 Equity and Incentive Plan (“2022 Plan”), which replaced the Company’s 2012 Equity and Incentive Plan (“2012 Plan”). The total number of shares reserved and available for issuance under the 2022 Plan is 500,000, plus shares that are subject to awards granted under the 2012 Plan that cease to be subject to such awards by forfeiture or otherwise after the effective date of the 2022 Plan. Awards are authorized to be granted in the form of dividend equivalent rights, stock options, stock appreciation rights, restricted stock, restricted stock units, performance-based awards and other stock-based or cash-based awards, and the exercise price will not be less than 100% of the fair market value on the date of grant of a share of stock. No stock option granted will be exercisable more than ten years after the date the stock option was granted. On May 1, 2012, the shareholders of the Company approved the 2012 Plan, the maximum number of shares of stock reserved and available for issuance under the 2012 Plan was 1.2 million shares. Awards were authorized to be granted in the form of incentive stock options, non-qualified stock options, stock appreciation rights, restricted stock, restricted stock units, unrestricted stock, performance shares and dividend equivalent rights, or any combination of the preceding, and the exercise price will not be less than 100% of the fair market value on the date of grant in the case of incentive stock options, or 85% of the fair market value on the date of grant in the case of non-qualified stock options. No stock option was exercisable more than ten The amount of cash used to settle stock-based compensation transactions for the years ended December 31, 2023, 2022 and 2021 was $545,000, $688,000 and $629,000, respectively. Restricted Stock Units Restricted stock units vest over the requisite service period, which is typically two, three or five years. Restricted stock units issued do not participate in dividends and recipients are not entitled to vote these restricted units until shares of the Company’s stock are delivered in respect of the restricted stock units after vesting. For the years ended December 31, 2023, 2022 and 2021, the Company issued restricted stock units with a grant-date fair value of $1.6 million, $1.3 million and $994,000, respectively, to certain employees. The grant-date fair value is calculated utilizing the Company's closing market share price as of the date the awards are granted. Restricted stock unit expense is recognized within salaries and employee benefits on the consolidated statements of income on a straight-line basis over the vesting period. The expense and the related income tax benefit recognized in connection with the restricted stock units was as follows for the periods indicated: For the Year Ended (In thousands) 2023 2022 2021 Expense $ 962 $ 724 $ 610 Income tax benefit 207 156 131 Fair value of grants vested 803 622 506 Restricted stock unit activity for the year ended December 31, 2023 was as follows: (Dollars in thousands, except per unit data) Number of Units Weighted-Average Weighted-Average Aggregate Unrecognized Nonvested at January 1, 2023 57,822 $ 44.88 Granted 44,730 36.21 Vested (19,032) 42.17 Forfeited (8,789) 43.19 Nonvested at December 31, 2023 74,731 $ 40.58 2.75 $ 2,812 $ 2,261 Restricted Stock Awards Restricted stock awards vest pro-rata over the requisite service period, which is typically three years, or earlier if a recipient retires and has met all retirement or disability eligibility requirements of the award. Awards issued to Company directors are not subject to any service requirements and vest immediately. Recipients of restricted stock awards are entitled to vote these restricted shares during the vesting period. For restricted stock awards issued under the 2022 Plan, cash dividends are retained by the Company during the vesting period and paid out upon vesting of the shares. If the restricted stock award is forfeited, any accrued dividends revert back to the Company. Accrued dividends on restricted stock awards are reported within accrued interest and other liabilities on the Company’s consolidated financial statements and totaled $27,000 and $8,000, at December 31, 2023 and 2022, respectively. For restricted stock awards issued under the 2012 Plan, cash dividends are paid out immediately during the vesting period and are not subject to forfeiture. For the years ended December 31, 2023, 2022 and 2021, the Company issued restricted stock awards with a grant-date fair value of $1.5 million, $1.2 million and $924,000, respectively, to certain directors and employees. The grant-date fair value is calculated utilizing the Company's closing market share price as of the date the awards are granted. The expense for restricted stock awards issued to employees of the Company is recognized within salaries and employee benefits on the consolidated statements of income on a straight-line basis over the vesting period. The expense for awards issued to directors of the Company (which are not subject to service requirements and vest immediately) is recognized within consulting and professional fees on the consolidated statements of income. The expense and the related income tax benefit recognized in connection with the restricted stock awards was as follows for the periods indicated: For the Year Ended (In thousands) 2023 2022 2021 Expense $ 1,225 $ 1,053 $ 895 Income tax benefit 263 226 192 Fair value of grants vested 1,187 1,014 901 Restricted stock award activity, which includes awards issued to directors of the Company, for the year ended December 31, 2023 was as follows: (Dollars in thousands, except per share data) Number of Shares Weighted-Average Weighted-Average Aggregate Unrecognized Nonvested at January 1, 2023 20,536 $ 44.53 Granted 44,451 32.80 Vested (33,763) 35.16 Forfeited (2,690) 40.19 Nonvested at December 31, 2023 28,534 $ 37.76 1.9 $ 1,074 $ 672 Management Stock Purchase Program (“MSPP”) The Company offers the MSPP to provide an opportunity for certain employees to receive restricted shares of the Company’s common stock in lieu of a portion of their annual incentive bonus. Restricted shares issued under the MSPP are granted at a discount to the fair market value of the Company’s common stock on the date of grant and they cliff vest two years after the grant date, or earlier if a recipient meets the disability eligibility requirement of the plan. Should an employee forfeit his or her non-vested MSPP awards, the Company will return the lesser of the price paid by the employee on the date of grant, or the fair value of the non-vested awards as of the date forfeited. Recipients of restricted stock issued under the MSPP are entitled to vote these restricted shares during the vesting period. For restricted stock awards issued under the MSPP of the 2022 Plan, cash dividends are retained by the Company during the vesting period and paid out upon vesting of the shares. If the restricted stock award is forfeited, any accrued dividends revert back to the Company. Accrued dividends on MSPP awards are reported within accrued interest and other liabilities on the Company’s consolidated financial statements and totaled $9,000 and $0, at December 31, 2023 and 2022, respectively. For restricted stock awards issued under the MSPP of the 2012 Plan, cash dividends are paid out immediately during the vesting period and are not subject to forfeiture. For the years ended December 31, 2023, 2022 and 2021, the Company issued MSPP awards with a grant-date fair value of $79,000, $113,000 and $157,000, respectively, to certain employees. The expense for restricted stock awards under the MSPP is recognized within salaries and employee benefits on the consolidated statements of income on a straight-line basis over the vesting period. The expense and the related income tax benefit recognized in connection with the MSPP awards was as follows for the periods indicated: For the Year Ended (In thousands) 2023 2022 2021 Expense $ 93 $ 124 $ 104 Income tax benefit 20 27 22 Fair value of grants vested 129 87 70 MSPP award activity for the year ended December 31, 2023 was as follows: (Dollars in thousands, except per share data) Number of Shares Weighted-Average Weighted-Average Aggregate Unrecognized Nonvested at January 1, 2023 17,184 $ 14.12 Granted 8,037 9.84 Vested (7,886) 16.34 Forfeited (761) 11.63 Nonvested at December 31, 2023 16,574 $ 11.10 0.6 $ 66 $ 51 For the years ended December 31, 2023, 2022 and 2021, the Company received cash from the issuance of restricted shares under the MSPP of $219,000, $342,000 and $324,000, respectively. At December 31, 2023 and 2022, cash received from current participating employees totaled $558,000 and $633,000, respectively, and was presented within accrued interest and other liabilities on the consolidated statements of condition. LTIP The LTIP is intended to attract and retain executives who will contribute to the Company’s future success. The long-term performance period is a period of three Restricted Stock Awards” section of this note . For the years ended December 31, 2023, 2022 and 2021, the Company issued performance-based share unit awards with a grant-date fair value of $1.6 million, $1.1 million and $753,000, respectively. The grant-date fair value is calculated utilizing the Company's closing market share price as of the date the awards are granted. The expense for the performance-based share units is recognized within salaries and employee benefits on the consolidated statements of income on a straight-line basis over the vesting period. The expense and the related tax benefit for the LTIP's performance-based share units was as follows for the periods indicated: For the Year Ended (In thousands) 2023 2022 2021 Expense $ 332 $ 457 $ 637 Related income tax benefit 71 98 137 Fair value of grants vested 594 548 435 LTIP performance-based share unit activity for the year ended December 31, 2023 was as follows: (Dollars in thousands, except per share data) Number of Shares Weighted-Average Weighted-Average Aggregate Unrecognized Nonvested at January 1, 2023 61,186 $ 41.65 Granted (1) 46,372 34.00 Vested (17,283) 34.39 Forfeited (2) (17,193) 36.96 Nonvested at December 31, 2023 73,082 $ 39.92 1.6 $ 2,917 $ 458 (1) Number of shares granted assumes payout at 200% of target. (2) Forfeited shares consists of 11,895 shares forfeited due to payout at less than 200% of target. Defined Contribution Retirement Plan (“DCRP”) The DCRP is an unfunded deferred compensation plan for the benefit of certain Company executives. Annually, participants receive a credit to an account administered by the Company, of 10% of each participant’s eligible earnings and cash bonus for the prior performance period. Annual credits to a participant’s account will be denominated in deferred stock unit awards (the right to receive a share of common stock of the Company upon the satisfaction of certain restrictions) based on the fair market value of a share of the common stock of the Company on the date of grant. For all active participants, vesting occurs ratably from the date of participation until the participant reaches the age of 65, at which time the participant is 100% vested. In 2018, the DCRP was amended to provide the ability to tailor vesting terms for new participants. For the years ended December 31, 2023, 2022 and 2021, the Company issued DCRP awards with a grant-date fair value of $288,000, $267,000 and $247,000, respectively. The grant-date fair value is calculated utilizing the Company's closing market share price as of the date the awards are granted. The expense for the DCRP is recognized within salaries and employee benefits on the consolidated statements of income on a straight-line basis over the vesting period. Compensation expense and the related tax benefit recognized in connection with the DCRP was as follows for the periods presented: For the Year Ended (In thousands) 2023 2022 2021 Expense $ 188 $ 169 $ 135 Related income tax benefit 40 36 29 Fair value of grants vested 171 174 118 DCRP award activity for the year ended December 31, 2023 was as follows: (Dollars in thousands, except per award data) Number of Deferred Stock Awards Weighted-Average Weighted-Average Aggregate Unrecognized Nonvested at January 1, 2023 8,382 $ 44.85 Granted 7,958 36.21 Vested (4,430) 38.62 Forfeited (750) 36.21 Nonvested at December 31, 2023 11,160 $ 41.74 13.7 $ 420 $ 405

Employee Benefit Plans

Employee Benefit Plans	12 Months Ended
Employee Benefit Plans	Dec. 31, 2023
Retirement Benefits [Abstract]
Employee Benefit Plans	EMPLOYEE BENEFIT PLANS 401(k) and Profit Sharing Plan The Company has a 401(k) plan and the majority of its employees participate in it. Employees may contribute pre-tax contributions to the 401(k) plan up to the maximum amount allowed by federal tax laws. The Company makes matching contributions of up to 4% of an employee’s eligible compensation. For the years ended December 31, 2023, 2022, and 2021, expenses under the 401(k) plan matching contributions totaled $1.7 million, $1.6 million, and $1.5 million, respectively. For years prior to 2022, the Company, at its discretion, made profit sharing contributions to employees' 401(k) accounts in addition to its regular 401(k) plan matching contribution. For the year ended December 31, 2021, these additional profit sharing contributions totaled 3% of employee eligible compensation, and expenses were $1.3 million. Supplemental Executive Retirement Program (“SERP”) and Other Postretirement Benefit Plan The Company sponsors unfunded, non-qualified SERPs for certain officers. These agreements were designed to make up the shortfall (when compared to a non-highly compensated employee) in replacing income at retirement due to Internal Revenue Service (“ IRS”) compensation and benefit limits under the 401(k) plan and Social Security. The SERP provides for a minimum 15-year guaranteed benefit for all vested participants. There are no new entrants to the Company’s SERP. As of December 31, 2023, there were no active participants in the SERP. The Company also provides medical and life insurance to certain eligible retired employees under the other postretirement benefit plan. This postretirement plan is a benefit only to certain qualifying participants. There are no new entrants to the Company's medical and health postretirement benefit plan. The following table summarizes changes in the benefit obligation and plan assets for each postretirement benefit plan as of the dates indicated: SERP Other Postretirement December 31, December 31, (In thousands) 2023 2022 2023 2022 Benefit obligations: Beginning of year $ 15,042 $ 16,610 $ 3,261 $ 4,167 Service cost 281 534 11 21 Interest cost 756 460 162 111 Actuarial (gain) loss (65) (1,996) (48) (863) Benefits paid (526) (566) (171) (175) End of year 15,488 15,042 3,215 3,261 Fair value of plan assets: Beginning of year — — — — Employer contributions 526 566 171 175 Benefits paid (526) (566) (171) (175) End of year — — — — Unfunded status at end of year (1) $ 15,488 $ 15,042 $ 3,215 $ 3,261 Amounts recognized in AOCI, net of tax: Net actuarial loss (gain) $ 361 $ 412 $ (57) $ (76) Prior service credit — — (65) (29) Total $ 361 $ 412 $ (122) $ (105) (1) Presented within other liabilities on the consolidated statements of condition. The accumulated benefit obligation for the SERP at December 31, 2023 and 2022 was $15.5 million and $15.0 million, respectively. For the year ending December 31, 2024, the estimated actuarial loss on the SERP that will be amortized from AOCI into net periodic benefit cost is $0. All prior service costs have been fully amortized. For the year ending December 31, 2024, the estimated actuarial gain and prior service credit on other postretirement benefits that will be amortized from AOCI into net periodic benefit cost is $4,000 and $24,000, respectively. The components of net periodic benefit cost and other amounts recognized in OCI, before taxes, were as follows for the periods indicated: SERP Other Postretirement For the Year Ended For the Year Ended (In thousands) 2023 2022 2021 2023 2022 2021 Net periodic benefit cost: Service cost (1) $ 281 $ 534 $ 504 $ 11 $ 21 $ 26 Interest cost (2) 756 460 389 162 111 103 Recognized net actuarial loss (gain) (2) — 859 778 (3) 88 116 Amortization of prior service credit (2) — — — (24) (24) (24) Net periodic benefit cost 1,037 1,853 1,671 146 196 221 Changes in funded status recognized in OCI, before taxes: Net actuarial (gain) loss arising during period (65) (1,996) 222 (49) (863) (202) Reclassifications to net periodic benefit cost: Amortization of net unrecognized actuarial (loss) gain — (859) (778) 3 (88) (116) Amortization of prior service credit — — — 24 24 24 Total recognized in OCI, before taxes (65) (2,855) (556) (22) (927) (294) Total recognized in net periodic benefit cost and OCI, before taxes $ 972 $ (1,002) $ 1,115 $ 124 $ (731) $ (73) (1) Presented in salaries and employee benefits on the consolidated statements of income. (2) Presented in other expenses on the consolidated statements of income. The following assumptions were used in determining benefit obligations and net period benefit costs. As of December 31, 2023, the SERP no longer has active participants and rate of compensation increases assumptions are no longer used. SERP Other Postretirement 2023 2022 2021 2023 2022 2021 Weighted-average assumptions as of end of year: Discount rate for benefit obligation 4.9 % 5.1 % 2.8 % 5.0 % 5.2 % 2.8 % Discount rate for net periodic benefit cost 5.1 % 2.8 % 2.5 % 5.2 % 2.8 % 2.4 % Rate of compensation increase for benefit obligation (1) N/A 3.0 % 3.0 % N/A N/A N/A Rate of compensation increase for net periodic benefit cost (1) N/A 3.0 % 3.0 % N/A N/A N/A Health care cost trend rate assumed for future years N/A N/A N/A 4.5% - 7.5% 4.5% - 7.5% 4.5% - 6.5% (1) As of December 31, 2023, there were no active participants in the SERP. A 1.0% increase or decrease in the assumed health care cost trend rate would not materially increase or decrease the Company's accumulated postretirement benefit obligation and the related service and interest cost as of December 31, 2023. For the year ending December 31, 2023, the expected contribution for the SERP is $1.3 million and for the other postretirement benefits plan is $286,000. The expected benefit payments for the next ten years are presented in the following table: (In thousands) SERP Other Postretirement 2024 $ 1,293 $ 286 2025 1,201 276 2026 1,201 260 2027 1,177 238 2028 1,194 246 Next 5 years 5,749 1,096

Income Taxes

Income Taxes	12 Months Ended
Income Taxes	Dec. 31, 2023
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES The current and deferred components of income tax expense on the consolidated statements of income were as follows: For the Year Ended (In thousands) 2023 2022 2021 Current: Federal $ 7,990 $ 12,334 $ 16,555 State 1,156 1,489 1,709 Total 9,146 13,823 18,264 Deferred: Federal 1,277 1,743 (622) State 30 42 (15) Total 1,307 1,785 (637) Income tax expense $ 10,453 $ 15,608 $ 17,627 The income tax expense differs from the amount computed by applying the statutory federal income tax rate of 21.0% as a result of the following: For the Year Ended (Dollars in thousands) 2022 2022 2021 Computed tax expense $ 11,306 $ 16,180 $ 18,195 Increase (reduction) in income taxes resulting from: State taxes, net of federal benefit 937 1,209 1,338 Low income housing credits (831) (846) (591) Tax exempt income (647) (732) (782) Income from life insurance (493) (399) (496) Share-based awards 69 (100) (103) Other 112 296 66 Income tax expense $ 10,453 $ 15,608 $ 17,627 Income before income tax expense $ 53,836 $ 77,047 $ 86,641 Effective tax rate 19.4 % 20.3 % 20.3 % Temporary differences between the financial statements carrying amounts and the tax bases of assets and liabilities gave rise to the following deferred tax assets and liabilities as of the dates indicated: December 31, 2023 2022 (In thousands) Asset Liability Asset Liability Net unrealized losses on AFS debt securities $ 29,418 $ — $ 36,027 $ — Allowance for credit losses 8,447 — 8,640 — Net operating loss and tax credit carryforward 7,084 — 7,913 — Pension and other benefits 4,656 — 4,536 — Deferred compensation and benefits 1,033 — 892 — Deferred loan origination fees — (3,235) — (3,253) Depreciation — (2,359) — (2,536) Net unrealized (gains) losses on derivative instruments — (1,670) — (1,613) Other — (1,148) — (389) Gross deferred tax assets (liabilities) $ 50,638 $ (8,412) $ 58,008 $ (7,791) Valuation allowance on deferred tax assets — — Net deferred tax assets $ 42,226 $ 50,217 At December 31, 2023 and 2022, the Company had $32.8 million and $36.7 million, respectively, in unused federal net operating losses that were acquired in 2015. Due to Internal Revenue Code Section 382(g) limitations, the Company's use of the federal net operating losses acquired is limited to $3.9 million annually, which was determined using the applicable federal rate and the fair value of consideration paid for the acquisition at the acquisition date. The acquired federal net operating losses will expire between 2030 and 2034. The Company expects that it will be able to fully utilize the acquired allowable federal net operating losses prior to expiration, as the Company has a history of generating taxable income well in excess of the limitation. The Company continuously monitors and assesses the need for a valuation allowance on its deferred tax assets and, at December 31, 2023 and 2022 determined that no valuation allowance was necessary. As of December 31, 2023, the Company's federal and state income tax returns for the years ended December 31, 2022, 2021 and 2020 were open to audit by federal and state authorities.

EPS

EPS	12 Months Ended
EPS	Dec. 31, 2023
Earnings Per Share [Abstract]
Earnings per Share	EPS The following is an analysis of basic and diluted EPS, reflecting the application of the two-class method, as described below: For the Year Ended (In thousands, except number of shares and per share data) 2023 2022 2021 Net income $ 43,383 $ 61,439 $ 69,014 Dividends and undistributed earnings allocated to participating securities (1) (53) (162) (190) Net income available to common shareholders $ 43,330 $ 61,277 $ 68,824 Weighted-average common shares outstanding for basic EPS 14,563,380 14,644,170 14,903,855 Dilutive effect of stock-based awards (2) 45,965 56,840 67,723 Weighted-average common and potential common shares for diluted EPS 14,609,345 14,701,010 14,971,578 Earnings per common share: Basic EPS $ 2.98 $ 4.18 $ 4.62 Diluted EPS $ 2.97 $ 4.17 $ 4.60 Awards excluded from the calculation of diluted EPS (3) : Performance-based share units 3,075 — — Restricted shares 9,049 — — (1) Represents dividends paid and undistributed earnings allocated to non-vested stock-based awards that contain non-forfeitable rights to dividends. (2) Represents the assumed dilutive effect of restricted shares, restricted share units and contingently issuable performance-based share units utilizing the treasury stock method. (3) Represents stock-based awards not included in the computation of potential common shares for purposes of calculating diluted EPS as the exercise prices were greater than the average market price of the Company's common stock, and, therefore, are considered anti-dilutive. Non-vested stock-based payment awards that contain non-forfeitable rights to dividends are participating securities and are included in the computation of EPS pursuant to the two-class method. The two-class method is an earnings allocation formula that determines EPS for each class of common stock and participating security according to dividends declared (or accumulated) and participation rights in undistributed earnings. Certain of the Company’s non-vested stock-based awards qualify as participating securities. Net income is allocated between the common stock and participating securities pursuant to the two-class method. Basic EPS is computed by dividing net income available to common shareholders by the weighted-average number of common shares outstanding during the period, excluding participating non-vested stock-based awards. Diluted EPS is computed in a similar manner, except that the denominator includes the number of additional common shares that would have been outstanding if potentially dilutive common shares were issued using the treasury stock method.

Fair Value

Fair Value	12 Months Ended
Fair Value	Dec. 31, 2023
Fair Value Disclosures [Abstract]
Fair Value	FAIR VALUE Fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Fair value is best determined using quoted market prices. However, in many instances, quoted market prices are not available. In such instances, fair values are determined using various valuation techniques. Various assumptions and observable inputs must be relied upon in applying these techniques. GAAP establishes a fair value hierarchy for valuation inputs that gives the highest priority to quoted prices in active markets for identical assets or liabilities and the lowest priority to unobservable inputs. GAAP permits an entity to choose to measure eligible financial instruments and other items at fair value. The Company has elected the fair value option for its loans held for sale. Electing the fair value option for loans held for sale enables the Company’s financial position to more clearly align with the economic value of the actively traded asset. The fair value hierarchy for valuation of an asset or liability is as follows: • Level 1: Valuation is based upon unadjusted quoted prices in active markets for identical assets and liabilities that the entity has the ability to access as of the measurement date. • Level 2: Valuation is determined from quoted prices for similar assets or liabilities in active markets, from quoted prices for identical or similar instruments in markets that are not active or by model-based techniques in which all significant inputs are observable in the market. • Level 3: Valuation is derived from model-based and other techniques in which at least one significant input is unobservable and which may be based on the Company’s own estimates about the assumptions that market participants would use to value the asset or liability. In general, fair value is based upon quoted market prices, where available. If such quoted market prices are not available, fair value is based upon model-based techniques incorporating various assumptions including, but not limited to, interest rates, prepayment speeds and credit losses. Assets and liabilities valued using model-based techniques are classified as either Level 2 or Level 3, depending on the lowest level classification of an input that is considered significant to the overall valuation. A description of the valuation methodologies used for instruments measured at fair value, as well as the general classification of such instruments pursuant to the valuation hierarchy, is set forth below. Financial Instruments Recorded at Fair Value on a Recurring Basis Trading Securities and Deferred Compensation. The fair value of trading securities and deferred compensation is reported using market quoted prices and has been classified as Level 1 as such securities and underlying securities are actively traded and no valuation adjustments have been applied. Debt Securities. The fair value of investments in debt securities is reported utilizing prices provided by an independent pricing service based on recent trading activity and other observable information including, but not limited to, dealer quotes, market spreads, cash flows, market interest rate curves, market consensus prepayment speeds, credit information, and the bond’s terms and conditions. The fair value of debt securities is classified as Level 2. Loans Held For Sale. The fair value of loans held for sale is determined on an individual loan basis using quoted secondary market prices and is classified as Level 2. Derivatives. The fair value of interest rate swaps is determined using inputs that are observable in the market place obtained from third parties including yield curves, publicly available volatilities, and floating indexes and, accordingly, are classified as Level 2 inputs. The credit value adjustments associated with derivatives utilize Level 3 inputs, such as estimates of current credit spreads to evaluate the likelihood of default. As of December 31, 2023 and 2022, the credit valuation adjustment on the overall valuation of its derivative positions and was not significant to the overall valuation of its derivatives, and, thus, the Company's interest rate swaps were classified as Level 2. The fair value of the Company's fixed rate interest rate lock commitments are determined using secondary market pricing for loans with similar structures, including term, rate and borrower credit quality, adjusted for the Company's pull-through rate estimate ( i.e. estimate of loans within its pipeline that will ultimately complete the origination process and be funded). The Company has classified its fixed rate interest rate lock commitments as Level 2 as the quoted secondary market prices are the more significant input, and although the Company's internal pull-through rate estimate is a Level 3 estimate, it is less significant to the ultimate valuation. The fair value of the Company's forward delivery commitments are determined using secondary market pricing for loans with similar structures, including term, rate and borrower credit quality, and the locked and agreed to price with the secondary market investor. The Company has classified its fixed-rate interest rate lock commitments as Level 2. The following table summarizes financial assets and financial liabilities measured at fair value on a recurring basis segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value for the dates indicated: (In thousands) Fair Value Readily Available Market Prices Observable Market Data Company Determined Fair Value December 31, 2023 Financial assets: Trading securities $ 4,647 $ 4,647 $ — $ — AFS debt securities: Obligations of states and political subdivisions 6,386 — 6,386 — MBS issued or guaranteed by U.S. government-sponsored enterprises 460,091 — 460,091 — CMO issued or guaranteed by U.S. government-sponsored enterprises 141,011 — 141,011 — Subordinated corporate bonds 18,320 — 18,320 — Loans held for sale 10,320 — 10,320 — Customer loan swaps 10,699 — 10,699 — Interest rate contracts 12,206 — 12,206 — Fixed rate mortgage interest rate lock commitments 215 — 215 — Forward delivery commitments 51 — 51 — Financial liabilities: Deferred compensation $ 4,647 $ 4,647 $ — $ — Customer loan swaps 10,748 — 10,748 — Interest rate contracts 3,387 — 3,387 — Fixed rate mortgage interest rate lock commitments 11 — 11 — Forward delivery commitments 132 — 132 — December 31, 2022 Financial assets: Trading securities $ 3,990 $ 3,990 $ — $ — AFS debt securities: Obligations of states and political subdivisions 49,226 — 49,226 — MBS issued or guaranteed by U.S. government-sponsored enterprises 514,019 — 514,019 — CMO issued or guaranteed by U.S. government-sponsored enterprises 109,347 — 109,347 — Corporate bonds 23,283 — 23,283 — Loans held for sale 5,197 — 5,197 — Customer loan swaps 14,802 — 14,802 — Interest rate contracts 13,051 — 13,051 — Fixed rate mortgage interest rate lock commitments 31 — 31 — Forward delivery commitments 114 — 114 — Financial liabilities: Deferred compensation $ 3,990 $ 3,990 $ — $ — Customer loan swaps 14,850 — 14,850 — Interest rate contracts 5,515 — 5,515 — Fixed rate mortgage interest rate lock commitments 87 — 87 — The Company did not have any transfers between Level 1 and Level 2 of the fair value hierarchy for the years ended December 31, 2023 or 2022. The Company’s policy for determining transfers between levels occurs at the end of the reporting period when circumstances in the underlying valuation criteria change and result in transfer between levels. Financial Instruments Recorded at Fair Value on a Nonrecurring Basis The Company may be required, from time to time, to measure certain financial assets and financial liabilities at fair value on a nonrecurring basis in accordance with GAAP, which may consist of collateral-dependent loans and servicing assets. These include assets that are measured at the lower of cost or market value that were recognized at fair value below cost at the end of the period. Collateral-Dependent Loans. Expected credit losses on individually assessed loans deemed to be collateral dependent are valued based upon the lower of amortized cost or fair value of the underlying collateral less costs to sell. Management estimates the fair values of these assets using Level 2 inputs, such as the fair value of collateral based on independent third-party market approach appraisals for collateral-dependent loans, and Level 3 inputs where circumstances warrant an adjustment to the appraised value based on the age of the appraisal and/or comparable sales, condition of the collateral, and market conditions. Servicing Assets. The Company accounts for mortgage servicing assets at cost, subject to impairment testing. When the carrying value of a tranche exceeds fair value, a valuation allowance is established to reduce the carrying cost to fair value. Fair value is based on a valuation model that calculates the present value of estimated net servicing income. The Company obtains a third-party valuation based upon loan level data including note rate, type and term of the underlying loans. The model utilizes two significant unobservable inputs, namely loan prepayment assumptions and the discount rate used, to calculate the fair value of each tranche, and as such, the Company has determined servicing assets are Level 3 of the fair value hierarchy. The table below highlights financial assets measured and reported at fair value on a non-recurring basis for the dates indicated: (In thousands) Fair Value Readily Available Market Prices Observable Market Data Company Determined December 31, 2023 Financial assets: Collateral-dependent loans $ 4,768 $ — $ — $ 4,768 December 31, 2022 Financial assets: Collateral-dependent loans $ 69 $ — $ — $ 69 The following table presents the valuation methodology and unobservable inputs for Level 3 assets measured at fair value on a non-recurring basis for the dates indicated: (Dollars in thousands) Fair Value Valuation Methodology Unobservable input Discount December 31, 2023 Collateral-dependent loans: Specifically reserved $ 4,768 Market approach appraisal of collateral Estimated selling costs 7% December 31, 2022 Collateral-dependent loans: Specifically reserved $ 69 Market approach appraisal Estimated selling costs 18% Non-Financial Instruments Recorded at Fair Value on a Nonrecurring Basis Non-financial assets measured at fair value on a nonrecurring basis may consist of OREO, goodwill and core deposit intangible assets. As of December 31, 2023 and 2022, the Company did not have any material non-financial instruments measured and reported at fair value. OREO. OREO properties acquired through foreclosure or deed in lieu of foreclosure are recorded at net realizable value, which is the fair value of the real estate, less estimated costs to sell. Any write-down of the recorded investment in the related loan is charged to the ACL upon transfer to OREO. Upon acquisition of a property, a current appraisal is used or an internal valuation is prepared to substantiate fair value of the property. After foreclosure, management periodically, but at least annually, obtains updated valuations of the OREO properties and, if additional impairments are deemed necessary, the subsequent write-downs for declines in value are recorded through a valuation allowance and a provision for credit losses charged to other non-interest expense within the consolidated statements of income. As management considers appropriate, adjustments are made to the appraisal obtained for the OREO property to account for recent sales activity of comparable properties, changes in the condition of the property, and changes in market conditions. These adjustments are not observable in an active market and are classified as Level 3. At December 31, 2023 and December 31, 2022, the Company did not have any OREO properties. Goodwill. Goodwill represents the excess cost of an acquisition over the fair value of the net assets acquired. The fair value of goodwill is estimated by utilizing several standard valuation techniques, including discounted cash flow analyses, bank merger multiples, and/or an estimation of the impact of business conditions and investor activities on the long-term value of the goodwill. Should an impairment occur, the associated goodwill is written-down to fair value and the impairment charge is recorded within non-interest expense in the consolidated statements of income. The Company conducts an annual impairment test of goodwill in the fourth quarter each year, or more frequently as necessary. Through its assessments, management concluded goodwill was not impaired for the years ended December 31, 2023 or, 2022. Core Deposit Intangible Assets. Core deposit intangible assets represent the estimated value of acquired customer relationships and are amortized over the estimated life of those relationships. Core deposit intangibles are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount may not be recoverable. There were no indications or triggering events for the years ended December 31, 2023 or 2022, that indicated the carrying amount may not be recoverable. The estimated fair values and related carrying amounts for assets and liabilities for which fair value is only disclosed are shown below as of the dates indicated: (In thousands) Carrying Amount Fair Value Readily Available Market Prices Observable Market Prices Company Determined Market Prices December 31, 2023 Financial Assets: HTM debt securities $ 544,931 $ 510,595 $ — $ 510,595 $ — Commercial real estate loans (1)(2) 1,653,435 1,540,327 — — 1,540,327 Commercial loans (2) 399,032 385,585 — — 385,585 Residential real estate loans (2) 1,753,124 1,488,248 — — 1,488,248 Home equity loans (2) 238,124 233,025 — — 233,025 Consumer loans (2) 17,444 15,279 — — 15,279 Servicing assets 2,274 4,124 — — 4,124 Financial liabilities: Time deposits $ 640,539 $ 634,856 $ — $ 634,856 $ — Short-term borrowings 485,607 484,849 — 484,849 — Junior subordinated debentures 44,331 31,918 — 31,918 — December 31, 2022 Financial assets: HTM debt securities $ 546,583 $ 506,193 $ — $ 506,193 $ — Commercial real estate loans (1)(2) 1,605,279 1,550,379 — — 1,550,379 Commercial loans (2) 424,685 414,353 — — 414,353 Residential real estate loans (2) 1,691,177 1,494,707 — — 1,494,707 Home equity loans (2) 232,203 237,967 — — 237,967 Consumer loans (2) 20,087 17,853 — — 17,853 Servicing assets 2,458 4,412 — — 4,412 Financial liabilities: Time deposits $ 399,376 $ 390,463 $ — $ 390,463 $ — Short-term borrowings 265,176 264,779 — 264,779 — Junior subordinated debentures 44,331 31,032 — 31,032 — (1) Commercial real estate loans includes non-owner-occupied and owner-occupied properties. (2) The presented carrying amount is net of the allocated ACL on loans. Excluded from the summary were financial instruments measured at fair value on a recurring and nonrecurring basis, as previously described. The Company considers its financial instruments' current use to be the highest and best use of the instruments.

Parent Company Financial Statem

Parent Company Financial Statements	12 Months Ended
Parent Company Financial Statements	Dec. 31, 2023
Condensed Financial Information Disclosure [Abstract]
Parent Company Financial Statements	PARENT COMPANY FINANCIAL STATEMENTS Following are the condensed statements of condition, income and cash flows for the Company's parent company: STATEMENTS OF CONDITION December 31, (In thousands) 2023 2022 ASSETS Cash $ 35,219 $ 40,076 Investment in subsidiary 508,674 460,753 Receivable from subsidiary — 47 Other assets 14,142 9,410 Total assets $ 558,035 $ 510,286 LIABILITIES AND SHAREHOLDERS’ EQUITY Junior subordinated debentures $ 44,331 $ 44,331 Due to subsidiary — 16 Other liabilities 18,640 14,660 Shareholders’ equity 495,064 451,279 Total liabilities and shareholders’ equity $ 558,035 $ 510,286 STATEMENTS OF INCOME For the Year Ended (In thousands) 2023 2022 2021 Operating Income Dividend income from subsidiary $ 22,500 $ 31,700 $ 41,700 Other income — 19 7 Total operating income 22,500 31,719 41,707 Operating Expenses Interest on borrowings 2,150 2,140 2,524 Fees to Bank 180 180 160 Other operating expenses 915 794 628 Total operating expenses 3,245 3,114 3,312 Income before equity in undistributed income of subsidiaries and income taxes 19,255 28,605 38,395 Equity in undistributed income of subsidiaries 23,389 32,129 29,869 Income before income taxes 42,644 60,734 68,264 Income tax benefit 739 705 750 Net Income $ 43,383 $ 61,439 $ 69,014 STATEMENTS OF CASH FLOWS For the Year Ended (In thousands) 2023 2022 2021 Operating Activities Net income $ 43,383 $ 61,439 $ 69,014 Adjustments to reconcile net income to net cash provided by operating activities: Equity in undistributed income of subsidiaries (23,389) (32,129) (29,869) (Increase) decrease in other assets (4,884) 9,219 4,244 Increase (decrease) in due to subsidiaries 31 (187) 202 Increase (decrease) in other liabilities 4,005 (1,051) (558) Net cash provided by operating activities 19,146 37,291 43,033 Financing Activities Net proceeds from issuance of common stock 2,533 2,198 2,118 Common stock repurchases (2,000) (10,240) (10,090) Repayment of subordinated debt — — (15,000) Cash dividends paid on common stock (24,536) (23,512) (21,081) Net cash used in financing activities (24,003) (31,554) (44,053) Net (decrease) increase in cash, cash equivalents and restricted cash (4,857) 5,737 (1,020) Cash, cash equivalents and restricted cash at beginning of year 40,076 34,339 35,359 Cash, cash equivalents and restricted cash at end of year $ 35,219 $ 40,076 $ 34,339

Business and Summary of Signi_2

Business and Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2023
Accounting Policies [Abstract]
Principles of Consolidation	Principles of Consolidation . The accompanying consolidated financial statements include the accounts of the Company and the Bank (which includes the consolidated accounts of Healthcare Professional Funding Corporation (“HPFC”) and Property A, Inc.). All intercompany accounts and transactions have been eliminated in consolidation. Assets held by the Bank in a fiduciary capacity, through Camden National Wealth Management, are not assets of the Company and, therefore, are not included in the consolidated statements of condition. The Company also owns 100% of the common stock of CCTA and UBCT. These entities are unconsolidated subsidiaries of the Company.
Use of Estimates	Use of Estimates . The preparation of the financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting periods. Actual results could vary from these estimates as a result of changing conditions and future events. Several estimates are particularly critical and are susceptible to significant near-term change, such as the allowance for credit losses (“ACL”), including the allowance for loan losses, off-balance sheet credit exposures, and AFS and HTM debt securities; the accounting for business combinations including subsequent impairment analyses for goodwill and other intangible assets; accounting for income taxes; and postretirement benefits.
Subsequent Events	Subsequent Events . The Company has evaluated events and transactions subsequent to December 31, 2023 for potential recognition or disclosure and has disclosed such events and transactions in Note 2, Note 9 and Note 14 of the consolidated financial statements.
Significant Concentration of Credit Risk	Significant Concentration of Credit Risk. The Company makes loans primarily to customers in Maine, Massachusetts and New Hampshire. Although it has a diversified loan portfolio, a large portion of the Company's loans are secured by commercial or residential real estate and are subject to real estate market volatility within these states. Furthermore, the debtors' ability to honor their contracts is highly dependent upon other economic factors throughout Maine, Massachusetts and New Hampshire. The Company does not generally engage in non-recourse lending and typically will require the principals of any commercial borrower to obligate themselves personally on the loan. Refer to Note 3 for further discussion of credit concentrations.
Cash, Cash Equivalents and Restricted Cash	Cash, Cash Equivalents and Restricted Cash . For the purpose of reporting, cash and cash equivalents consist of cash on hand and amounts due from banks. In March 2020, the FRB reduced its reserve requirement ratios to 0%, effectively eliminating cash reserve requirements for all depository institutions. Certain cash balances will be designated as restricted as required by certain contracts with unrelated third parties.
Investments	Investments. Debt investments for which the Company has the positive intent and ability to hold to maturity are classified as HTM and recorded at amortized cost on the consolidated statements of condition. Debt investments that are not classified as HTM or trading are classified as AFS and are carried at fair value on the Company's consolidated statements of condition with subsequent changes to fair value recorded within AOCI, net of tax. Trading securities and equity investments with a readily determinable fair value are carried at fair value on the Company's consolidated statements of condition, with the change in fair value recognized between periods recognized within net income on the consolidated statements of income. Purchase premiums and discounts are recognized in interest income on the consolidated statements of income using the interest method over the period to maturity or issuer call option date, if earlier, and are recorded on the trade date. Upon sale of an investment security, the realized gain or loss on the sale is recognized within non-interest income on the consolidated statements of income. The cost basis of our investments sold is determined using the specific identification method. ACL on (or Write-off of) AFS Debt Securities. Management assesses its AFS debt securities in an unrealized loss position for the following: (i) whether it intends to sell the security, or (ii) it is more likely than not that it will be required to sell the security before recovery of its amortized cost basis. If either of the criteria regarding intent or requirement to sell is met, the security’s amortized cost basis is written down to fair value through net income. For AFS debt securities that do not meet either of the two criteria, management evaluates whether the decline in fair value resulted from credit losses or other factors. In making this assessment, management considers the following: (i) the extent to which fair value is less than amortized cost, (ii) credit rating of the security, (iii) macroeconomic trends of the industry specific to the security, and (iv) any other adverse conditions specifically related to the security, among other factors. If this assessment indicates that a credit loss exists, the present value of cash flows expected to be collected from the security are compared to the amortized cost basis of the security. If the present value of cash flows expected to be collected is less than the amortized cost basis, a credit loss exists and an allowance on AFS debt securities is recorded for the credit loss, limited by the amount that the fair value is less than the amortized cost basis. When assessing an AFS debt security for credit loss, securities with identical CUSIPs are pooled together to assess for impairment using the average cost basis. Any impairment that has not been recorded through an allowance is recognized in AOCI. A change in the ACL on AFS debt securities or write-off of an AFS debt security, which may be in full or a portion thereof, is recorded as expense (credit) within provision for credit losses on the consolidated statements of income. Losses are charged against the allowance when management believes the uncollectibility of an AFS debt security is confirmed or when either of the criteria regarding intent or requirement to sell is met. As of December 31, 2023 and 2022, there was no allowance carried on the Company's AFS debt securities nor were there any permanent write-offs for the years ended December 31, 2023, 2022, or 2021. Refer to Note 2 of the consolidated financial statements for further discussion. ACL on (or Write-off of) HTM Debt Securities. The Company estimates expected credit losses on its HTM debt securities and carry an allowance for such. Management measures expected credit losses on HTM debt securities on a collective basis by major security types that share similar risk characteristics, which may include, but is not limited to, credit ratings, financial asset type, collateral type, size, effective interest rate, term, geographical location, industry, and vintage. The estimate of expected credit losses on the HTM portfolio is based on the expected cash flows of each individual CUSIP over its contractual life and considers historical credit loss information, current conditions and reasonable and supportable forecasts. Under ASU 2016-13 the Company has the ability to exclude certain securities when the historical credit loss information, adjusted for current conditions and forecasts, resulting in zero risk of nonpayment of the amortized cost basis of the security. The Company has evaluated and determined zero risk of nonpayment on all securities guaranteed by the U.S government agencies. Given the rarity of municipal and corporate bond defaults and losses, the Company will utilize external third party loss forecast models as the sole source of municipal and corporate bond default and loss rates. As with the loan portfolio, cash flows are modeled over a reasonable and supportable forecast period and then revert to the long-term average economic conditions on a straight line basis. Management may exercise discretion to make adjustments based on various qualitative factors. An HTM debt security is written-off in the period in which a determination is made that all or a portion of the financial asset is uncollectible. Any previously recorded allowance, if any, is reversed and then the amortized cost basis is written-down to the amount deemed to be collectible, if any. A change in the ACL on HTM debt securities or write-off of an HTM debt security, which may be in full or a portion thereof, is recorded as expense (credit) within provision for credit losses on the consolidated statements of income. FHLBB and FRBB Stock. The Company, through the Bank, is a member of the FHLBB and FRBB, and, as a member, is required to hold a certain amount of FHLBB and FRB common stock. These equity stocks are non-marketable and are reported at cost within other investments on the consolidated statements of condition. The Company evaluates its FHLBB and FRB common stock for impairment based on the ultimate recoverability of the par value rather than by recognizing temporary declines in value.
Loans Held for Sale	Loans Held for Sale. The Company has elected the fair value option for loans classified as held for sale on the consolidated statements of condition. Designation of loans as held for sale is determined based on intent and is generally completed as the loans are underwritten. The fair value for loans held for sale is determined using quoted secondary market prices. Management consistently evaluates the Company's loan portfolio in conjunction with asset/liability management practices, and will opt to sell certain residential mortgage loans to manage the Company's interest rate exposure and for other business purposes, including generating fee income through mortgage sale gains and managing its liquidity position.
Loans Held for Investment and Acquired Loans	Loans Held for Investment and Acquired Loans . Loans held for investment are reported at amortized cost, adjusted for any partial charge-offs and net of any deferred loan fees or costs. Interest income is accrued based upon the daily principal amount outstanding, except for loans on non-accrual status. Loan fees and certain direct origination costs are deferred and amortized into interest income over the contractual term of the loan using the level-yield method. When a loan is paid off, the unamortized portion is recognized in interest income. Loans acquired through a business or asset purchase are reported at fair value, as of acquisition date. Interest income is accrued based upon the daily principal amount outstanding and is then further adjusted by the accretion of any discount or amortization of any premium associated with the loan that was recognized based on the acquisition date fair value using the level-yield method. When a loan is paid off, the unamortized portion is recognized in interest income. A loan is classified as non-accrual generally when it becomes 90 days past due as to interest or principal payments, or sooner if management considers such action to be prudent. All previously accrued but unpaid interest on non-accrual loans is reversed from interest income in the period in which the loan is considered delinquent and the amortization of any unamortized net deferred origination loan fees/costs stops. Interest payments received on non-accrual loans are applied as a reduction of principal. A loan remains on non-accrual status until all principal and interest amounts contractually due are brought current and future payments are reasonably assured. Should a loan transition from non-accrual to accrual, the unrecognized interest earned during the period the loan was on non-accrual and unamortized deferred origination fees and costs are recognized over the remaining contractual life of the loan using the level-yield method.
ALL	ACL on Loans. The ACL on loans is established based upon the Company's current estimate of expected lifetime credit losses on loans measured at amortized cost, which is comprised of the unpaid principal balance of the loan, net deferred loan fees (costs), acquired premium (discount), and any write-downs previously taken on the loan. The ACL on loans is increased by charges to provision for credit losses and reduced by charge-offs, net of recoveries. Management evaluates the appropriateness of the ACL on loans quarterly. This evaluation is inherently subjective as it requires material estimates that may be susceptible to significant change from period to period. The ACL on loans is presented on the consolidated statements of condition. Loans past due 30 days or more are considered delinquent. In general, secured loans that are delinquent for 90 consecutive days are placed on non-accrual status and may be subject to individual loss assessment in accordance with established internal policy. In general, unsecured loans that are delinquent for 90 consecutive days are charged-off. Effective January 1, 2023, the Company adopted prospectively ASU No. 2022-02, Financial Instruments - Credit Losses (Topic 326): Troubled Debt Restructurings and Vintage Disclosures ("ASU 2022-02"). ASU 2022-02 provided guidance that eliminated the recognition and measurement of TDRs. Following the adoption of this guidance, the Company evaluates all loan modifications made to borrowers experiencing financial difficulty according to the accounting guidance for loan refinancing and restructuring to determine whether such loan modification should be accounted for as a new loan or a continuation of the existing loan. All loans previously recognized as a TDR will continue to be classified as such until the loan is paid off. Refer to Note 3 of the consolidated financial statements for further discussion. The ACL on loans reduces the loan portfolio to the net amount expected to be collected, and represents the expected losses over the life of all loans at the reporting date. The allowance incorporates forward-looking information and applies a reversion methodology beyond the reasonable and supportable forecast. The ACL on loans represents the Company's estimated risk of loss within its loan portfolio as of the reporting date. To appropriately measure expected credit losses, management disaggregates the loan portfolio into pools of similar risk characteristics ( i.e. “segments”). The Company utilizes a discounted cash flow approach to calculate the expected loss for each segment. Within the discounted cash flow model, a PD and LGD assumption is applied to calculate the expected loss for each segment. PD is the probability the asset will default within a given timeframe and LGD is the percentage of assets not expected to be collected due to default. The Company's PD and LGD assumptions may be derived from internal historical default and loss experience or from external data where there are not statistically meaningful loss events for a loan segment or it does not have default and loss data that covers a full economic cycle. In 2023 the Company made a policy election to apply a 100% PD for any loan that meets it’s definition of default, which is defined as loans in non-accrual, loans partially charge-off or loans past due for more than 90 days. The impact to the ACL at December 31, 2023 was not material to the Company’s consolidated financial statements. As of December 31, 2023 and 2022, the primary macroeconomic drivers used within the discounted cash flow model included forecasts of Maine Unemployment, changes in Maine and National GDP, and changes in the Maine Housing Price Index. Management monitors and assesses its macroeconomic drivers at least annually (generally in the fourth quarter) to determine if or that they continue to be the most predictive indicator of losses within the Company’s loan portfolio, and these macroeconomic drivers may change from time to time. To determine its reasonable and supportable forecast, management may leverage macroeconomic forecasts obtained from various reputable sources, which may include, but is not limited to, the Federal Open Market Committee forecast and other publicly available forecasts from well recognized, leading economists or firms. The Company’s reasonable and supportable forecast period generally ranges from one to three years, depending on the facts and circumstances of the current state of the economy, portfolio segment and management’s judgement of what can be reasonably supported. The model reversion period generally ranges from one to six years, and it also depends on the current state of the economy and management’s judgments of such. Management monitors and assesses the forecast and reversion period at least annually. The ACL on loans is calculated over a loan’s contractual life. For term loans, the contractual life is calculated based on the maturity date. For commercial revolving loans with no stated maturity date, the contractual life is calculated based on the internal review date. For all other revolving loans, the contractual life is based on either the estimated maturity date or a default date. The contractual term does not include expected extension, renewals or modifications. For purposes of determining the ACL on loans, the Company disaggregates its loans into portfolio segments. Each portfolio segment possesses unique risk characteristics that are considered when determining the appropriate level of allowance. In calculating the ACL on loans, the contractual life of a loan must be adjusted for prepayments to arrive at expected cash flows. The Company models term loans using an annualized prepayment. When the Company has a specific expectation of differing payment behavior for a given loan, the loan may be evaluated individually. For revolving loans that do not have a principal payment schedule, a curtailment rate is factored into the cash flow. The ACL on loans evaluation may also consider various qualitative factors, such as: (i) actual or expected changes in economic trends and conditions, (ii) changes in the value of underlying collateral for loans, (iii) changes to lending policies, underwriting standards and/or management personnel performing such functions, (iv) delinquency and other credit quality trends, (v) credit risk concentrations, if any, (vi) changes to the nature of the Company's business impacting the loan portfolio, (vii) and other external factors, that may include, but are not limited to, results of internal loan reviews, examinations by bank regulatory agencies, or other such events such as a natural disaster. Certain loans greater than $500,000 are individually evaluated for estimated credit losses, including those (i) are on non-accrual, (ii) a modified loan to a borrower experiencing financial difficulty to be disclosed under ASU 2022-02, or (iii) that have other unique characteristics differing from the segment. Specific reserves are established when appropriate for such loans based on the present value of expected future cash flows of the loan or the estimated realizable value of the collateral, if any. Management may also adjust its assumptions to account for differences between expected and actual losses from period-to-period. The variability of management’s assumptions could alter the ACL on loans materially and impact future results of operations and financial condition. The loss estimation models and methods used to determine the allowance for credit losses are continually refined and enhanced. Accrued Interest. Accrued interest receivable balances are presented within other assets on the consolidated statements of condition, and excluded from the measurement of the ACL, including investments and loans. Accrued interest receivable is written-off by reversing previously recognized interest income. The Company has a robust policy in place to write-off accrued interest when a loan is placed on non-accrual. For loans, write-off typically occurs when a loan has been in default for 90 days or more.
Goodwill and Core Deposit Intangible Assets	Goodwill and Core Deposit Intangible Assets . Goodwill represents the price paid in an acquisition that is in excess of the fair value of the net assets acquired. Goodwill is not subject to amortization but rather is evaluated at least annually for impairment, or as events and circumstances dictate, at the reporting unit level, and for which the Company has determined it has a single reporting unit. Any impairment is charged to non-interest expense on the consolidated statements of income. The Company evaluates goodwill for impairment annually as of November 30 th , or more frequently as warranted by external and/or internal factors. The Company may utilize a qualitative analysis and/or a quantitative analysis to evaluate goodwill for impairment. The Company has the option to by-pass the qualitative analysis for any given year and perform the quantitative analysis. Using a qualitative analysis to assess goodwill for impairment, the Company will consider various factors to determine if it is more-likely-than-not that its carrying value of its reporting unit exceeds its fair value. These factors include, but are not limited to, the overall macro-economic environment; industry economic and regulatory environment; and company specific factors, including, but not limited to, performance, Company common stock share price, competition and/or significant changes in senior management. Should the Company determine it is more-likely-than-not that the carrying value of its reporting unit exceeds its fair value, then it would then perform the next step of the goodwill impairment test, which is a quantitative analysis. If the Company were to determine it is not more-likely-than-not that the carrying value of its reporting unit exceeds its fair value, the Company would have completed its goodwill impairment evaluation and concluded goodwill was not impaired. After performing the qualitative analysis and determining it is more-likely-than-not that the carrying value of its reporting unit exceeds its fair value or if the Company by-passed the qualitative analysis, it would perform a quantitative analysis to determine if the carrying value of its reporting unit exceeds its fair value. Alternatively, the Company may bypass the qualitative analysis and use a quantitative analysis. In completing the quantitative analysis, the Company may use various valuation techniques such as a discounted cash flow model, a comparative market transaction multiple approach and/or other valuation methods to determine the reporting unit's fair value. Goodwill impairment is recognized the extent the carrying value of a reporting unit exceeds its fair value. The Company completed its testing for impairment of goodwill for the years ended December 31, 2023, 2022 and 2021 and concluded goodwill was not impaired. Refer to Note 4 of the consolidated financial statements for further details. Core deposit intangible assets represents the estimated value of acquired customer relationships and is amortized on a straight-line basis over the estimated life of those relationships. Core deposit intangibles are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount may not be recoverable. If necessary, management will test the core deposit intangibles for impairment by comparing their carrying value to the expected undiscounted cash flows of the assets. If the undiscounted cash flows of the intangible assets exceed their carrying value then the intangible assets are deemed to be fully recoverable and not impaired. However, if the undiscounted cash flows of the intangible assets are less than their carrying value then management must compare the fair value of the intangible assets to its carrying value. If the fair value of the intangible assets exceeds their carrying value then the intangible assets are not impaired. If the fair value of the intangible assets is less than its carrying value, then an impairment charge is recorded to mark the carrying value of the intangible assets to fair value. For the years ended December 31, 2023, 2022 and 2021, there were no events or changes in circumstances that indicated the carrying amount may not be recoverable.
BOLI	BOLI . BOLI represents the cash surrender value of life insurance policies on the lives of certain active and retired employees where the Company is the beneficiary and is recorded as an asset on the consolidated statements of condition. Increases in the cash surrender values of the policies, as well as death benefits received, net of any cash surrender value, are recorded in non-interest income on the consolidated statements of income, and are not subject to income taxes. The Company reviews the financial strength of the insurance carriers prior to the purchase of life insurance policies and no less than annually thereafter. A life insurance policy with any individual carrier is limited to 10% of Tier 1 capital plus the allowable ACL (as defined for regulatory purposes) and the total cash surrender value of life insurance policies is limited to 25% of Tier 1 capital plus the allowable ACL.
Premises and Equipment	Premises and Equipment . Premises and equipment purchased in normal course are stated at cost less accumulated depreciation, while premises and equipment obtained through the acquisition of a company or branch acquisition are stated at their estimated fair values as of the acquisition date less accumulated depreciation that occurred subsequent to the acquisition date. Depreciation and amortization are computed using the straight-line method over the estimated useful lives of the related assets. Leasehold improvements are amortized over the lesser of the term of the respective lease or the estimated life of the improvement. Land is carried at cost. Repairs and maintenance costs that are not an improvement or do not extend the estimated useful life of the asset are expensed as incurred. Software costs, including cloud-based software licenses that qualify as internal-use software, are stated at cost less accumulated amortization within other assets on the consolidated statements of condition. Amortization expense is calculated using the straight-line method over the estimated useful lives of the related assets. Cloud-based software costs that do not qualify as internal-use software are capitalized as service contracts within other assets on the consolidated statements of condition and expensed ratably over the term of the contract period. Long-lived assets, including premises and equipment and certain identifiable intangibles, are reviewed for impairment whenever events or changes in circumstances indicate the carrying amount of an asset may not be recoverable. The amount of the impairment loss, if any, is based on the asset’s fair value. No impairment losses were recognized in 2023, 2022, or 2021. Leases. The Company leases office space, space for ATM locations and certain branch locations under noncancellable operating leases, several of which have renewal options to extend lease terms. Upon commencement of a new lease, the Company will recognize a ROU asset and corresponding lease liability. The Company makes the decision on whether to renew an option to extend a lease by considering various factors. The Company will recognize an adjustment to ROU asset and lease liability when lease agreements are amended and executed. The discount rate used in determining the present value of lease payments is based on the lessor’s implicit rate in the lease if known or on the Company's incremental borrowing rate for borrowing terms similar to each lease at commencement date. The Company has lease agreements with lease and non-lease components, which are generally accounted for separately. For real estate leases, non-lease components and other non-components, such as common area maintenance charges, real estate taxes and insurance, are not included in the measurement of the lease liability since they are generally able to be segregated. The Company has elected the short-term lease recognition exemption for all leases that qualify.
OREO	OREO . OREO properties acquired through foreclosure or deed-in-lieu of foreclosure are recorded initially at estimated fair value less estimated costs to sell. Any write-down of the recorded investment in the related loan is charged to the ACL on loans upon transfer to OREO. Upon acquisition of a property, a current appraisal is used or an internal valuation is prepared to substantiate fair value of the property. Any subsequent declines in the fair value of a property are recorded as a valuation allowance on the asset. Any subsequent increases in the fair value of a property are recorded as reductions of the valuation allowance, but not below zero. At December 31, 2023 and 2022, the Company did not have any OREO properties carried on its consolidated statements of condition. Upon a sale of an OREO property, any excess of the carrying value over the sale proceeds is recognized as a loss on sale. Any excess of sale proceeds over the carrying value of the OREO property is first applied as a recovery to the valuation allowance, if any, with the remainder being recognized as a gain on sale. The recognized gain or loss upon sale of OREO property is recognized within other real estate owned and collection costs, net on the consolidated statements of income. Operating expenses, including legal and other direct expenses, and changes in the valuation allowance relating to foreclosed assets are included in other real estate owned and collection costs, net on the consolidated statements of income.
Mortgage Banking	Mortgage Banking . Residential real estate mortgage loans are originated for purposes of being (i) held for investment and (ii) held for sale into the secondary market. The transfer of these financial assets is accounted for as a sale when control over the asset has been surrendered. Control is deemed to be surrendered when (i) the asset has been isolated from the Company, (ii) the transferee obtains the right (free of conditions that constrain it from taking advantage of that right) to pledge or exchange the transferred asset, and (iii) the Company does not maintain effective control over the transferred asset through an agreement to repurchase it before its maturity. The Company records the gain on sale of the financial asset within mortgage banking income, net on the consolidated statements of income, net of direct and indirect costs incurred to originate the loan. Servicing assets are recognized as separate assets when servicing rights are acquired through the sale of residential mortgage loans with servicing rights retained. Capitalized servicing rights are initially recorded at fair value and reported within other assets on the consolidated statements of condition and recognized as income within mortgage banking income, net on the consolidated statements of income. Servicing rights are amortized in proportion to, and over the period of, the estimated future servicing of the underlying mortgages (typically, the contractual life of the mortgage). The amortization of mortgage servicing rights is recorded as a reduction of income within non-interest income on the consolidated statements of income. Servicing assets are evaluated for impairment quarterly based upon the fair value of the rights as compared to amortized cost. Impairment is determined by stratifying rights by predominant characteristics, such as interest rates and terms. Fair value is determined using prices for similar assets with similar characteristics, when available, or based upon discounted cash flows using market-based assumptions. Impairment of the servicing assets is recognized through a valuation allowance to the extent that fair value is less than the capitalized amount. If it is later determined that all or a portion of the impairment no longer exists, a reduction of the allowance may be recorded increasing income, but not below zero.
Short-Term and Long-Term Borrowings	Short-Term and Long-Term Borrowings. Short-term borrowings are those that upon origination are scheduled to mature in one year or less. The Company's short-term borrowings may include, but are not limited to, FHLBB overnight and FHLBB advances, customer repurchase agreements, federal funds purchased, and line of credit advances. Long-term borrowings are those that upon origination are scheduled to mature over a period greater than one year. The Company's long-term borrowings may include, but are not limited to, FHLBB advances, subordinated debentures, and wholesale repurchase agreements. Short-term and long-term borrowings on the consolidated statements of income are presented net of unamortized issuance costs, if any, and amortized over the life of the borrowing. The Company is required to post collateral for certain borrowings, for which it generally posts loans and/or investment securities as collateral.
Income Taxes	Income Taxes . Income taxes are accounted for using the asset and liability method. Under this method, deferred tax assets and liabilities are recognized for the future tax implications attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. If current information suggests that it is not more-likely than-not that the Company will not be able to realize the deferred tax assets, a valuation allowance is established. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. The Company assesses quarterly whether or not a valuation allowance on its deferred tax assets is necessary. If it is more- likely-than-not that the Company will not be able to realize the benefit of the deferred tax assets, then a valuation allowance is established on the deferred tax asset not expected to be realized. At December 31, 2023 and 2022, the Company did not carry a valuation allowance on its deferred tax assets. The Company accounts for its windfall tax benefits and shortfalls within income tax expense on the consolidated statements of income as a discrete period item in the period generated. Renewable Energy Tax Credits. The Company adopted ASU 2023-02 during the year ended December 31, 2023 and has elected to account for its qualified investments in tax credit generating solar tax projects using the proportional amortization method. Under the proportional amortization method, the Company amortizes the initial cost of the investment in proportion to the income tax credits and other income tax benefits received, and recognizes the net investment benefit as a component of income tax expense. For the year ended December 31, 2023 the Company did not recognize any income tax credits or income tax benefits in its consolidated financial statements.
EPS	EPS . Basic EPS excludes dilution and is computed by dividing net income applicable to common stock by the weighted-average number of common shares outstanding for the period. Diluted EPS reflects the potential dilution that could occur if certain securities or other contracts to issue common stock (such as stock options) were exercised or converted into additional common shares that would then share in the earnings of the Company. Diluted EPS is computed by dividing net income applicable to common stock by the weighted-average number of common shares outstanding for the period, plus an incremental number of common-equivalent shares computed using the treasury stock method. Unvested share-based payment awards which include the right to receive non-forfeitable dividends are considered to participate with common stock in undistributed earnings for purposes of computing EPS. Restricted share grants and management stock purchase grants awarded under the 2012 and 2022 Equity and Incentive Plans, are considered participating securities for this purpose. Accordingly, the Company is required to calculate basic and diluted EPS using the two-class method. The calculation of EPS using the two-class method (i) excludes any dividends paid or owed on participating securities and any undistributed earnings considered to be attributable to participating securities from the numerator and (ii) excludes the dilutive impact of the participating securities from the denominator.
Postretirement Plans	Postretirement Plans . The Company sponsors various retirement plans for current and former employees, including a SERP for certain retired officers of the Company and a postretirement health care and life insurance plan to certain eligible retired employees. The SERP and postretirement benefit plans are unfunded and have no plan assets, and the Company has recorded a liability on the consolidated statements of condition. For the SERP, benefit obligations are estimated using the projected unit credit method. Under this method, each participant's benefits are attributed to years of service, taking into consideration future salary increases and the SERP's benefit allocation formula. Thus, the estimated total pension to which each participant is entitled to at retirement is broken down into units, each associated with a year of past credited service. For the SERP, an individual's estimated attributed benefit for valuation purposes related to a particular separation date is the benefit described under the SERP based on credited service as of the measurement date, but determined using the projected salary that would be used in the calculation estimate of the benefit on the expected separation date. The Company has obligations with various retired employees related to certain postretirement benefits. The obligations are based on the employee's date of hire and years of service through retirement, with the associated cost recognized over the requisite service period. Under the plan, the postretirement benefit amount the Company will pay for any given year for an individual is capped. The accrual methodology results in an accrued amount at the full eligibility date equal to the then present value of all of the future benefits expected to be paid.
Revenue from Contracts with Customers	Revenue from Contracts with Customers. The Company receives a portion of its non-interest income from contracts with customers, which is accounted for in accordance with ASC 606. Revenue recognized depicts the transfer of promised goods or services to its customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The Company considers the terms of the contract and all relevant facts and circumstances in recording revenues from contracts with customers in accordance with ASC 606.
Stock-Based Compensation	Stock-Based Compensation .
Off-Balance Sheet Credit Related Financial Instruments	Off-Balance Sheet Credit Exposures . In the ordinary course of business, the Company enters into commitments to extend credit, including commercial letters of credit and standby letters of credit. Such financial instruments are recorded as loans when they are funded. ACL on Off-Balance Sheet Credit Exposures. The ACL on off-balance sheet credit exposures, excluding those that are unconditionally cancellable by the Company, estimates the expected losses on the unfunded commitments and standby letters of credit at each reporting date. To appropriately measure expected credit losses, management disaggregates the loan portfolio into similar risk characteristics, identical to those determined for the loan portfolio. An estimated funding rate is then applied to the qualifying unfunded loan commitments and standby letters of credit using the Company’s own historical experience to estimate the expected funded for each loan segment as of the reporting date. Once the expected funded amount for each loan segment is determined, the loss rate, which is the calculated expected loan loss as a percent of the amortized cost basis for each loan segment, is applied to calculate the ACL on off-balance sheet credit exposures as of the reporting date. The ACL on off-balance sheet credit exposures is presented within accrued interest and other liabilities on the consolidated statements of condition. A charge (credit) to provision for credit losses on the consolidated statements of income is made to account for the change in the ACL on off-balance sheet exposures between reporting periods.
Derivative Financial Instruments Designated as Hedges	Derivative Financial Instruments Designated as Hedges . The Company records all derivatives on the balance sheet at fair value. The accounting for changes in the fair value of derivatives depends on the intended use of the derivative, whether the Company has elected to designate a derivative in a hedging relationship and apply hedge accounting and whether the hedging relationship has satisfied the criteria necessary to apply hedge accounting. The Company formally documents relationships between hedging instruments and hedged items, as well as its risk management objectives and strategy for undertaking various hedge transactions. The Company also assesses, both at the hedge’s inception and on an ongoing basis, whether the derivatives that are used in hedging transactions are effective in offsetting changes in cash flows or fair values of hedged items. Derivatives designated and qualifying as a hedge of the exposure to changes in the fair value of an asset, liability, or firm commitment attributable to a particular risk, such as interest rate risk, are considered fair value hedges. Changes in fair value of a derivative that qualifies as a fair value hedge and the change in fair value of the hedged item are both recorded in earnings and offset each other when the transaction is effective. Derivatives designated and qualifying as a hedge of the exposure to variability in expected future cash flows, or other types of forecasted transactions, are considered cash flow hedges. Changes in fair value of a derivative that is effective and that qualifies as a cash flow hedge are recorded in OCI and are reclassified into earnings when the forecasted transaction or related cash flows affect earnings. The Company will also enter into derivative contracts that are intended to economically hedge certain of its risk, even though hedge accounting does not apply or the Company elects not to apply hedge accounting. Changes in the fair value for the derivatives not designated are recognized directly in earnings.
Segment Reporting	Segment Reporting . Operating segments are the components of an entity for which separate financial information is available and evaluated regularly by the chief operating decision-maker in order to allocate resources and assess performance. The Company's chief operating decision-maker assesses consolidated financial results to make operating and strategic decisions, assess performance, and allocate resources. Therefore, the Company has determined that its business is conducted in one reportable segment and represents the consolidated financial statements of the Company.
Recent Accounting Pronouncements	Recent Accounting Pronouncements: The following provides a brief description of recent accounting pronouncements that were adopted by the Company during the year ended December 31, 2023: ASU No. 2023-02, Investments - Equity Method and Joint Ventures (Topic 323): Accounting for Investments in Tax Credit Structures Using the Proportional Amortization Method. The FASB issued ASU 2023-02 to allow entities to be able to consistently account for equity investments that are made primarily for the purpose of receiving income tax credits and other income tax benefits. The Company early adopted ASU 2023-02, effective January 1, 2023, on a modified retrospective basis, to account for an initial investment in a tax credit generating renewable energy project. The adoption did not have a material impact to the Company’s consolidated financial statements for the year ended December 31, 2023. ASU No. 2022-02, Financial Instruments - Credit Losses (Topic 326): Troubled Debt Restructurings and Vintage Disclosures ("ASU 2022-02"). The FASB issued ASU 2022-02 to provide new guidance on TDRs and write-offs for entities that have adopted ASU 2016-13. The Company adopted ASU 2022-02 effective January 1, 2023, on a prospective basis. The adoption did not have a material impact to the Company’s consolidated financial statements for the year ended December 31, 2023. ASU No. 2022-01, Derivatives and Hedging ( Topic 815): Fair Value Hedging - Portfolio Layer Method ("ASU 2022-01"). The FASB issued ASU 2022-01 to amend ASU 2017-12, which was adopted by the Company in 2018. This amendment renames the "last-of-layer" method to the "portfolio layer" method, permits non-repayable financial assets to be included in a closed portfolio hedged using the portfolio layer method, and provides additional guidance for entities that apply the portfolio layer method of hedge accounting in accordance with Topic 815. The Company elected to adopt ASU 2022-01, as amended, effective January 1, 2023, on a prospective basis. The adoption did not have a material impact to the Company’s consolidated financial statements for the year ended December 31, 2023. The following provides a brief description of recently issued accounting pronouncements that have not yet been adopted by the Company: ASU No. 2023-09, Income Taxes (Topic 740) : Improvements to Income Tax Disclosures (“ASU 2023-09”). The FASB issued ASU 2023-09 to address investor requests for more transparency about income tax information through improvements to income tax disclosures primarily related to the rate reconciliation and income taxes paid information. ASU 2023-09 is to be applied on a prospective basis and is effective for annual periods beginning after December 15, 2024 with early adoption permitted. ASU 2023-09 will impact income tax disclosures, and the Company does not expect a material impact to the Company’s consolidated financial statements.

Investments (Tables)

Investments (Tables)	12 Months Ended
Investments (Tables)	Dec. 31, 2023
Investments, Debt and Equity Securities [Abstract]
Summary of Amortized Costs and Estimated Fair Values of Available-For-Sale Securities	The following table summarizes the amortized cost, estimated fair value and unrealized gains (losses) of AFS debt securities as of the dates indicated: (In thousands) Amortized Unrealized Unrealized Fair December 31, 2023 Obligations of states and political subdivisions $ 6,429 $ 1 $ (44) $ 6,386 Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises 525,439 630 (65,978) 460,091 Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises 149,387 1,161 (9,537) 141,011 Subordinated corporate bonds 21,682 1 (3,363) 18,320 Total AFS debt securities $ 702,937 $ 1,793 $ (78,922) $ 625,808 December 31, 2022 Obligations of states and political subdivisions $ 49,678 $ 11 $ (463) $ 49,226 Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises 598,845 131 (84,957) 514,019 Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises 122,760 — (13,413) 109,347 Subordinated corporate bonds 25,677 3 (2,397) 23,283 Total AFS debt securities $ 796,960 $ 145 $ (101,230) $ 695,875 The following table summarizes the Company's investment in FHLBB stock and FRB stock as presented within other investments on the consolidated statements of condition, as of the dates indicated: (In thousands) December 31, 2023 December 31, 2022 FHLBB $ 10,020 $ 7,339 FRB 5,374 5,374 Total $ 15,394 $ 12,713
Company's Sales of Securities	The following table details the Company’s sales of AFS debt securities for the periods indicated below: For the Year Ended (In thousands) 2023 2022 2021 Proceeds from sales $ 126,766 $ 36,280 $ — Gross realized gains — 13 — Gross realized losses (10,310) (925) —
Unrealized Gross Losses and Estimated Fair Values of Investment Securities by Length of Time that Individual Securities in Each Category in Continuous Loss Position	The following table presents AFS debt securities with gross unrealized losses, for which an ACL has not been recorded, segregated by the length of time the securities have been in a continuous loss position as of the dates indicated: Less Than 12 Months 12 Months or More Total (In thousands, except number of holdings) Number of Holdings Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses December 31, 2023 Obligations of states and political subdivisions 6 $ 2,345 $ (6) $ 1,437 $ (38) $ 3,782 $ (44) Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises 145 13,474 (23) 407,200 (65,955) 420,674 (65,978) Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises 43 19,620 (45) 62,869 (9,492) 82,489 (9,537) Subordinated corporate bonds 11 — — 17,319 (3,363) 17,319 (3,363) Total AFS debt securities 205 $ 35,439 $ (74) $ 488,825 $ (78,848) $ 524,264 $ (78,922) December 31, 2022 Obligations of states and political subdivisions 83 $ 42,276 $ (463) $ — $ — $ 42,276 $ (463) Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises 175 118,290 (11,521) 381,355 (73,436) 499,645 (84,957) Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises 64 47,340 (4,589) 62,007 (8,824) 109,347 (13,413) Subordinated corporate bonds 13 7,687 (384) 14,593 (2,013) 22,280 (2,397) Total AFS debt securities 335 $ 215,593 $ (16,957) $ 457,955 $ (84,273) $ 673,548 $ (101,230)
Contractual Obligation, Fiscal Year Maturity	Expected maturities will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. Mortgage-related securities are shown in total, as their maturities are highly variable. (In thousands) Amortized Fair Due in one year or less $ 1,000 $ 1,000 Due after one year through five years 10,835 9,997 Due after five years through ten years 16,276 13,709 Due after ten years — — Subtotal 28,111 24,706 Mortgage-related securities 674,826 601,102 Total $ 702,937 $ 625,808
Debt Securities, Held-to-maturity	The following table summarizes the amortized cost, estimated fair value and unrealized gains (losses) of HTM debt securities as of the dates indicated: (In thousands) Amortized Cost (1) Unrealized Unrealized Fair December 31, 2023 Obligations of U.S. government-sponsored enterprises $ 7,593 $ — $ (528) $ 7,065 Obligations of states and political subdivisions 56,262 1,242 (731) 56,773 Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises 304,850 — (21,623) 283,227 Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises 157,118 515 (13,497) 144,136 Subordinated corporate bonds 19,108 1,377 (1,091) 19,394 Total HTM debt securities $ 544,931 $ 3,134 $ (37,470) $ 510,595 December 31, 2022 Obligations of U.S. government-sponsored enterprises $ 7,457 $ — $ (777) $ 6,680 Obligations of states and political subdivisions 55,978 431 (1,610) 54,799 Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises 317,406 — (24,766) 292,640 Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises 145,069 — (13,724) 131,345 Subordinated corporate bonds 20,673 332 (276) 20,729 Total HTM debt securities $ 546,583 $ 763 $ (41,153) $ 506,193 (1) Amortized cost presented above includes unamortized unrealized losses from the aforementioned transfer from AFS to HTM securities as of December 31, 2023 and 2022 as follows: (1) $992,000 and $1.1 million, respectively, in obligations of U.S. government-sponsored enterprises; (2) $5.6 million and $6.1 million, respectively, in obligations of state and political subdivisions; (3) $34.6 million and $38.4 million, respectively, in mortgage-backed securities; (4) $18.4 million and $20.7 million, respectively, in collateralized mortgage obligations; and (5) $85,000 and $117,000, respectively in subordinated corporate bonds.
Amortized Cost and Estimated Fair Values of Debt Securities by Contractual Maturity	The following table presents the activity in the ACL on HTM debt securities, as reported under CECL, for the periods indicated: December 31, (In thousands) 2023 2022 Beginning balance $ — $ — HTM debt securities charged-off (1,838) — Provision for HTM debt securities 1,838 — Ending balance $ — $ — The amortized cost and estimated fair values of HTM debt securities by contractual maturity are shown in the table below as of December 31, 2023. Expected maturities will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. Mortgage-related securities are shown in total, as their maturities are highly variable. (In thousands) Amortized Fair Due in one year or less $ 502 $ 498 Due after one year through five years 1,790 1,818 Due after five years through ten years 35,975 35,840 Due after ten years 44,696 45,076 Subtotal 82,963 83,232 Mortgage-related securities 461,968 427,363 Total $ 544,931 $ 510,595

Loans and Allowance for Credi_2

Loans and Allowance for Credit Losses on Loans (Tables)	12 Months Ended
Loans and Allowance for Credit Losses on Loans (Tables)	Dec. 31, 2023
Receivables [Abstract]
Composition of Loan Portfolio, Excluding Residential Loans Held for Sale	The composition of the Company’s loan portfolio, excluding residential loans held for sale, was as follows for the dates indicated: December 31, (In thousands) 2023 2022 Commercial Loans: Commercial real estate - non-owner-occupied $ 1,370,446 $ 1,292,443 Commercial real estate - owner-occupied 301,860 332,494 Commercial 403,901 430,131 Total commercial loans 2,076,207 2,055,068 Retail Loans: Residential real estate 1,763,378 1,700,266 Home equity 240,341 234,428 Consumer 18,168 20,591 Total retail loans 2,021,887 1,955,285 Total loans $ 4,098,094 $ 4,010,353
Schedule of Loan Balances for Each Portfolio Segment	The loan balances for each portfolio segment presented above are net of their respective net unamortized fair value mark discount on acquired loans and net unamortized loan origination costs for the dates indicated: December 31, (In thousands) 2023 2022 Net unamortized fair value mark discount on acquired loans $ (168) $ (313) Net unamortized loan origination costs 7,113 6,890 Total $ 6,945 $ 6,577
Activity in Allowance for Loan Losses by Portfolio Segment	The following table presents the activity in the ACL on loans, as reported under CECL, for the periods indicated: Commercial Real Estate (In thousands) Non-Owner-Occupied Owner- Occupied Commercial Residential Real Estate Home Equity Consumer Total At or For the Year Ended December 31, 2023 Beginning balance, December 31, 2022 $ 17,296 $ 2,362 $ 5,446 $ 9,089 $ 2,225 $ 504 $ 36,922 Loans charged-off — (58) (1,560) (18) — (91) (1,727) Recoveries 19 — 471 44 1 31 566 (Credit) provision for loan losses (734) (14) 512 1,139 (9) 280 1,174 Ending balance, December 31, 2023 $ 16,581 $ 2,290 $ 4,869 $ 10,254 $ 2,217 $ 724 $ 36,935 At or For the Year Ended December 31, 2022 Beginning balance, December 31, 2021 $ 18,834 $ 2,539 $ 4,202 $ 6,133 $ 1,469 $ 79 $ 33,256 Loans charged-off — — (1,042) (66) — (134) (1,242) Recoveries 3 2 379 — 87 7 478 (Credit) provision for loan losses (1,541) (179) 1,907 3,022 669 552 4,430 Ending balance, December 31, 2022 $ 17,296 $ 2,362 $ 5,446 $ 9,089 $ 2,225 $ 504 $ 36,922
Credit Risk Exposure Indicators by Portfolio Segment	Based on the most recent analysis performed, the risk category of loans by portfolio segment by vintage, reported under the CECL methodology, was as follows as of the periods indicated: (In thousands) 2023 2022 2021 2020 2019 Prior Revolving Loans Revolving Loans Total As of December 31, 2023 Commercial real estate - non-owner-occupied Risk rating: Pass (Grades 1-6) $ 103,012 $ 364,777 $ 296,152 $ 146,707 $ 116,777 $ 320,101 $ — $ — $ 1,347,526 Special mention (Grade 7) 7,997 — — 350 33 3,597 — — 11,977 Substandard (Grade 8) 747 450 — 2,287 114 7,345 — — 10,943 Doubtful (Grade 9) — — — — — — — — — Total commercial real estate - non-owner-occupied $ 111,756 $ 365,227 $ 296,152 $ 149,344 $ 116,924 $ 331,043 $ — $ — $ 1,370,446 Gross charge-offs for the year ended $ — $ — $ — $ — $ — $ — $ — $ — $ — Commercial real estate - owner-occupied Risk rating: Pass (Grades 1-6) $ 26,902 $ 53,550 $ 76,575 $ 24,608 $ 18,728 $ 89,133 $ — $ — $ 289,496 Special mention (Grade 7) — — 2,355 — — 141 — — 2,496 Substandard (Grade 8) — 402 320 — — 9,146 — — 9,868 Doubtful (Grade 9) — — — — — — — — — Total commercial real estate - owner-occupied $ 26,902 $ 53,952 $ 79,250 $ 24,608 $ 18,728 $ 98,420 $ — $ — $ 301,860 Gross charge-offs for the year ended $ — $ — $ — $ — $ — $ 58 $ — $ — $ 58 Commercial Risk rating: Pass (Grades 1-6) $ 41,871 $ 54,323 $ 56,102 $ 24,338 $ 25,620 $ 35,442 $ 119,119 $ 36,895 $ 393,710 Special mention (Grade 7) 45 — 152 195 — 101 660 5 1,158 Substandard (Grade 8) 248 588 296 769 955 1,354 2,415 2,408 9,033 Doubtful (Grade 9) — — — — — — — — — Total commercial $ 42,164 $ 54,911 $ 56,550 $ 25,302 $ 26,575 $ 36,897 $ 122,194 $ 39,308 $ 403,901 Gross charge-offs for the year ended $ — $ 68 $ 137 $ 31 $ 20 $ 1,075 $ 82 $ 147 $ 1,560 Residential Real Estate Risk rating: Pass (Grades 1-6) $ 160,315 $ 539,835 $ 540,980 $ 220,943 $ 70,917 $ 226,126 $ 370 $ 386 $ 1,759,872 Special mention (Grade 7) — — — — — — — — — Substandard (Grade 8) — — 963 — 89 2,454 — — 3,506 Doubtful (Grade 9) — — — — — — — — — Total residential real estate $ 160,315 $ 539,835 $ 541,943 $ 220,943 $ 71,006 $ 228,580 $ 370 $ 386 $ 1,763,378 Gross charge-offs for the year ended $ — $ — $ — $ — $ — $ 18 $ — $ — $ 18 Home equity Risk rating: Performing $ 15,976 $ 23,104 $ 547 $ 324 $ 4,124 $ 12,686 $ 169,416 $ 13,405 $ 239,582 Non-performing — — — — — 11 527 221 759 Total home equity $ 15,976 $ 23,104 $ 547 $ 324 $ 4,124 $ 12,697 $ 169,943 $ 13,626 $ 240,341 Gross charge-offs for the year ended $ — $ — $ — $ — $ — $ — $ — $ — $ — Consumer Risk rating: Performing $ 5,525 $ 4,908 $ 2,068 $ 815 $ 345 $ 2,279 $ 2,191 $ — $ 18,131 Non-performing — — 5 — — 32 — — 37 Total consumer $ 5,525 $ 4,908 $ 2,073 $ 815 $ 345 $ 2,311 $ 2,191 $ — $ 18,168 Gross charge-offs for the year ended $ 2 $ 19 $ 31 $ 14 $ 8 $ 4 $ 13 $ — $ 91 (In thousands) 2022 2021 2020 2019 2018 Prior Revolving Loans Revolving Loans Total As of December 31, 2022 Commercial real estate - non-owner-occupied Risk rating: Pass (Grades 1-6) $ 339,171 $ 287,749 $ 160,621 $ 125,029 $ 108,823 $ 242,024 $ — $ — $ 1,263,417 Special mention (Grade 7) — 167 364 259 75 321 — — 1,186 Substandard (Grade 8) — 127 1,306 203 7,798 18,406 — — 27,840 Doubtful (Grade 9) — — — — — — — — — Total commercial real estate - non-owner-occupied $ 339,171 $ 288,043 $ 162,291 $ 125,491 $ 116,696 $ 260,751 $ — $ — $ 1,292,443 Commercial real estate - owner-occupied Risk rating: Pass (Grades 1-6) $ 60,127 $ 80,781 $ 28,378 $ 23,381 $ 39,554 $ 70,568 $ — $ — $ 302,789 Special mention (Grade 7) — 2,053 — 19,992 — 411 — — 22,456 Substandard (Grade 8) 17 — — — 3,266 3,966 — — 7,249 Doubtful (Grade 9) — — — — — — — — — Total commercial real estate - owner-occupied $ 60,144 $ 82,834 $ 28,378 $ 43,373 $ 42,820 $ 74,945 $ — $ — $ 332,494 Commercial Risk rating: Pass (Grades 1-6) $ 73,537 $ 70,110 $ 32,272 $ 33,491 $ 22,271 $ 26,245 $ 135,157 $ 30,191 $ 423,274 Special mention (Grade 7) — — 93 141 70 189 1,196 12 1,701 Substandard (Grade 8) 149 52 133 216 846 1,524 50 2,186 5,156 Doubtful (Grade 9) — — — — — — — — — Total commercial $ 73,686 $ 70,162 $ 32,498 $ 33,848 $ 23,187 $ 27,958 $ 136,403 $ 32,389 $ 430,131 Residential Real Estate Risk rating: Pass (Grades 1-6) $ 533,035 $ 579,216 $ 244,691 $ 79,492 $ 50,214 $ 210,262 $ 340 $ — $ 1,697,250 Special mention (Grade 7) — — — — — 23 — — 23 Substandard (Grade 8) — — — — 163 2,830 — — 2,993 Doubtful (Grade 9) — — — — — — — — — Total residential real estate $ 533,035 $ 579,216 $ 244,691 $ 79,492 $ 50,377 $ 213,115 $ 340 $ — $ 1,700,266 Home equity Risk rating: Performing $ 26,712 $ 693 $ 341 $ 4,842 $ 7,730 $ 8,551 $ 173,338 $ 11,735 $ 233,942 Non-performing — — — — — 27 377 82 486 Total home equity $ 26,712 $ 693 $ 341 $ 4,842 $ 7,730 $ 8,578 $ 173,715 $ 11,817 $ 234,428 Consumer Risk rating: Performing $ 8,009 $ 3,816 $ 1,702 $ 1,188 $ 345 $ 2,462 $ 3,069 $ — $ 20,591 Non-performing — — — — — — — — — Total consumer $ 8,009 $ 3,816 $ 1,702 $ 1,188 $ 345 $ 2,462 $ 3,069 $ — $ 20,591
Loan Aging Analysis by Portfolio Segment (Including Loans Past Due Over Ninety Days and Non Accrual Loans) and Summary of Non Accrual Loans, Which Include Troubled Debt Restructured Loans, and Loans Past Due Over Ninety Days and Accruing	The following is a loan aging analysis by portfolio segment (including loans past due over 90 days and non-accrual loans) and loans past due over 90 days and accruing as of the following dates: (In thousands) 30 – 59 Days Past Due 60 – 89 Days Past Due 90 Days or Greater Past Due Total Past Due Current Total Loans Outstanding Loans > 90 Days Past Due and Accruing December 31, 2023: Commercial real estate - non-owner-occupied $ 44 $ 41 $ 184 $ 269 $ 1,370,177 $ 1,370,446 $ — Commercial real estate - owner-occupied 655 — — 655 301,205 301,860 — Commercial 1,153 1,199 1,155 3,507 400,394 403,901 — Residential real estate 1,317 322 1,094 2,733 1,760,645 1,763,378 — Home equity 521 451 301 1,273 239,068 240,341 — Consumer 85 8 5 98 18,070 18,168 — Total $ 3,775 $ 2,021 $ 2,739 $ 8,535 $ 4,089,559 $ 4,098,094 $ — December 31, 2022: Commercial real estate - non-owner-occupied $ 267 $ — $ 11 $ 278 $ 1,292,165 $ 1,292,443 $ — Commercial real estate - owner-occupied 55 — 47 102 332,392 332,494 — Commercial 667 134 640 1,441 428,690 430,131 — Residential real estate 852 186 524 1,562 1,698,704 1,700,266 — Home equity 357 — 171 528 233,900 234,428 — Consumer 23 11 — 34 20,557 20,591 — Total $ 2,221 $ 331 $ 1,393 $ 3,945 $ 4,006,408 $ 4,010,353 $ —
Financing Receivable, Nonaccrual	The following table presents the amortized cost basis of loans on non-accrual status (including non-accruing TDRs) by portfolio segment as of the dates indicated: December 31, 2023 2022 (In thousands) Non-Accrual Loans With an Allowance Non-Accrual Loans Without an Allowance Total Non-Accrual Loans Non-Accrual Loans With an Allowance Non-Accrual Loans Without an Allowance Total Non-Accrual Loans Commercial real estate - non-owner-occupied $ 261 $ — $ 261 $ — $ 11 $ 11 Commercial real estate - owner-occupied 125 — 125 — 46 46 Commercial 1,725 — 1,725 415 300 715 Residential real estate 2,541 — 2,541 1,314 419 1,733 Home equity 759 — 759 421 65 486 Consumer 37 — 37 — — — Total $ 5,448 $ — $ 5,448 $ 2,150 $ 841 $ 2,991 The following table presents the amortized cost basis of collateral-dependent loans by portfolio segment and collateral type, as of the dates indicated: December 31, 2023 December 31, 2022 Collateral Type Total Collateral -Dependent Non-Accrual Loans Collateral Type Total Collateral -Dependent Non-Accrual Loans (In thousands) Real Estate Real Estate Commercial real estate - non-owner-occupied $ 4,494 $ 4,494 $ — $ — Commercial 671 671 — — Residential real estate — — 387 387 Total $ 5,165 $ 5,165 $ 387 $ 387
Summary of All Troubled Debt Restructuring Loans (Accruing and Non Accruing) by Portfolio Segment	The percentage of the amortized cost basis of loans that were modified to borrowers in financial distress as compared to the amortized cost basis of each class of financing receivable as of December 31, 2023, is also presented below: (In thousands) Principal Forgiveness Payment Delay Term Extension Interest Rate Reduction Combination Term Extension and Principal Forgiveness Combination Term Extension and Interest Rate Reduction Total % of Portfolio Commercial real estate - non-owner-occupied $ — $ — $ 4,494 $ — $ — $ — 0.3 % Total $ — $ — $ 4,494 $ — $ — $ — 0.1 % The following table presents the financial effect of the loan modifications presented above to borrowers experiencing financial difficulty for the year ended December 31, 2023: (In thousands) Principal Forgiveness Weighted Average Interest Rate Reduction Weighted Average Term Extension (Years) Commercial real estate - non-owner-occupied $ — — % 1.3

Goodwill and Core Deposit Int_2

Goodwill and Core Deposit Intangible Assets Goodwill and Core Deposit Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2023
Other Intangible Assets [Abstract]
Schedule of Finite-Lived Intangible Assets	The gross carrying amount and accumulated amortization of core deposit intangible assets were as follows at the periods indicated: December 31, 2023 2022 (In thousands) Gross Accumulated Net Gross Accumulated Net Core deposit intangible assets $ 6,451 $ (5,480) $ 971 $ 6,451 $ (4,888) $ 1,563
Schedule of Expected Amortization Schedule	The following table reflects the amortization expense for core deposit intangible assets over the period of economic benefit, which is estimated to be fully realized by December 31, 2025: (In thousands) Core Deposit Intangible Assets 2024 556 2025 415 Total $ 971

Premises and Equipment (Tables)

Premises and Equipment (Tables)	12 Months Ended
Premises and Equipment (Tables)	Dec. 31, 2023
Property, Plant and Equipment [Abstract]
Schedule of Premises and Equipment	Details of premises and equipment, at cost, for the periods indicated, were as follows: December 31, (In thousands) 2023 2022 Buildings and leasehold improvements $ 47,566 $ 46,670 Furniture, fixtures and equipment 19,120 20,036 Land and land improvements 9,320 9,275 Total cost 76,006 75,981 Accumulated depreciation and amortization (40,957) (39,959) Premises and equipment, net $ 35,049 $ 36,022 Depreciation and amortization expense for the periods indicated were as follows: (In thousands) For the Year Ended Fixed Asset Type Income Statement Line Item 2023 2022 2021 Furniture and equipment Furniture, equipment and data processing $ 1,514 $ 1,796 $ 1,994 Premises Net occupancy costs 1,618 1,560 1,623 Software Furniture, equipment and data processing 239 134 91 Total $ 3,371 $ 3,490 $ 3,708

Leases Leases (Tables)

Leases Leases (Tables)	12 Months Ended
Leases Leases (Tables)	Dec. 31, 2023
Leases [Abstract]
Summary of lease cost	The following ROU assets and lease liabilities have been reported within other assets and other liabilities on the consolidated statements of condition as of the dates indicated: December 31, 2023 2022 (In thousands) Consolidated Statements of Condition Operating Leases Finance Leases Total Operating Leases Finance Leases Total ROU assets Other Assets $ 11,497 $ 4,252 $ 15,749 $ 12,324 $ 4,485 $ 16,809 Lease liabilities Other Liabilities 9,978 4,449 14,427 10,718 4,616 15,334 In accordance with ASC 842, the components of lease expense for the periods indicated were as follows: For the Year Ended (In thousands) 2023 2022 2021 Operating lease cost (1) $ 1,531 $ 1,488 $ 1,474 Finance lease cost: Amortization of ROU assets 233 233 233 Interest on lease liabilities (2) 147 150 154 Total finance lease cost 380 383 387 Total lease cost (3) $ 1,911 $ 1,871 $ 1,861 (1) Includes immaterial short-term and variable lease costs, but excludes common area maintenance costs. (2) Includes immaterial variable lease costs. (3) Reported within net occupancy costs on the consolidated statements of income.
Supplemental Cash Flow And Balance Sheet Information	Supplemental cash flow information and non-cash activity related to leases was as follows for the periods indicated: For the Year Ended (In thousands) 2023 2022 2021 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 1,387 $ 1,391 $ 1,355 Operating cash flows from finance leases 144 149 154 Financing cash flows from finance leases 168 160 152 ROU assets obtained in exchange for new lease obligations: Operating leases $ 165 $ 764 $ 106 Finance leases — — — Supplemental information related to leases was as follows as of the dates indicated: December 31, 2023 2022 Weighted average remaining lease term: Operating leases 13.2 years 13.9 years Finance leases 25.3 years 25.8 years Weighted average discount rate: Operating leases 3.41 % 3.44 % Finance leases 3.45 % 3.44 %
Schedule of operating lease liability maturity	The following summarizes the remaining scheduled future minimum lease payments for operating and finance leases as of December 31, 2023: (In thousands) Operating Leases Finance Leases 2024 $ 1,370 $ 314 2025 1,180 317 2026 1,104 236 2027 1,020 211 2028 771 214 Thereafter 6,984 5,518 Total minimum lease payments 12,429 6,810 Less: amount representing interest (1) 2,451 2,361 Present value of net minimum lease payments (2) $ 9,978 $ 4,449 (1) Amount necessary to reduce net minimum lease payments to present value calculated at the Company's incremental borrowing rate. (2) Reflects the liability reported within other liabilities on the consolidated statements of condition.
Schedule of finance lease liability maturity	The following summarizes the remaining scheduled future minimum lease payments for operating and finance leases as of December 31, 2023: (In thousands) Operating Leases Finance Leases 2024 $ 1,370 $ 314 2025 1,180 317 2026 1,104 236 2027 1,020 211 2028 771 214 Thereafter 6,984 5,518 Total minimum lease payments 12,429 6,810 Less: amount representing interest (1) 2,451 2,361 Present value of net minimum lease payments (2) $ 9,978 $ 4,449 (1) Amount necessary to reduce net minimum lease payments to present value calculated at the Company's incremental borrowing rate. (2) Reflects the liability reported within other liabilities on the consolidated statements of condition.

Mortgage Banking (Tables)

Mortgage Banking (Tables)	12 Months Ended
Mortgage Banking (Tables)	Dec. 31, 2023
Transfers and Servicing [Abstract]
Schedule of Mortgage Servicing Rights Capitalized and Amortized	The following summarizes servicing assets capitalized and amortized, along with the activity in the related valuation allowance as of and for the periods indicated: As of and For the Year Ended (In thousands) 2023 2022 2021 Servicing Assets: Balance at beginning of year $ 2,458 $ 2,470 $ 2,196 Capitalized servicing right fees upon sale (1) 202 370 790 Amortization charged against mortgage servicing fee income (2) (386) (382) (515) Valuation adjustment — — (1) Balance at end of year $ 2,274 $ 2,458 $ 2,470 Valuation Allowance: Balance at beginning of year $ — $ (1) $ (27) Decrease in impairment reserve — 1 26 Balance at end of year $ — $ — $ (1) Fair value, beginning of year $ 4,412 $ 3,310 $ 2,447 Fair value, end of year $ 4,124 $ 4,412 $ 3,310 (1) Associated income was reported within mortgage banking income, net on the consolidated statements of income. (2) Associated amortization expense was reported within mortgage banking income, net on the consolidated statements of income.

Deposits (Tables)

Deposits (Tables)	12 Months Ended
Deposits (Tables)	Dec. 31, 2023
Deposits [Abstract]
Schedule Of Deposit Maturities	The following is a summary of the scheduled maturities of time deposits ( i.e . CDs) as of the dates indicated: December 31, (In thousands) 2023 2022 1 year or less $ 564,670 $ 206,621 Over 1 year to 2 years 24,970 59,571 Over 2 years to 3 years 10,382 18,047 Over 3 years to 4 years 4,565 9,066 Over 4 years to 5 years 3,144 5,211 Over 5 years 1,772 1,935 Total $ 609,503 $ 300,451

Borrowings (Tables)

Borrowings (Tables)	12 Months Ended
Borrowings (Tables)	Dec. 31, 2023
Debt Disclosure [Abstract]
Summary of Short term and Long term Borrowings and Subordinated Debentures	The following table summarizes the Company's short-term borrowings and junior subordinated debentures as presented on the consolidated statements of condition for the dates indicated. At December 31, 2023 and 2022, the Company did not have any long-term borrowings. December 31, 2023 Contractual Maturity December 31, (Dollars in thousands) Outstanding Balance Weighted 2024 2025 2026 2027 2028 Thereafter Outstanding Balance Weighted Short-Term Borrowings: Customer repurchase agreements (1) $ 200,657 1.56 % $ 200,657 $ — $ — $ — $ — $ — $ 196,451 1.00 % FHLBB and correspondent bank overnight borrowings (2) 149,950 5.53 % 149,950 — — — — — 68,725 4.78 % Bank term funding program 135,000 4.70 % 135,000 — — — — — — — % Total short-term borrowings $ 485,607 3.66 % $ 485,607 $ — $ — $ — $ — $ — $ 265,176 1.98 % Junior Subordinated Debentures: CCTA (2) 36,083 4.82 % — — — — — 36,083 36,083 4.62 % UBCT (2) 8,248 4.65 % — — — — — 8,248 8,248 5.39 % Total junior subordinated debentures $ 44,331 4.79 % $ — $ — $ — $ — $ — $ 44,331 $ 44,331 4.76 % (1) Refer to Note 10 for further discussion of customer repurchase agreements. (2) The Company has interest rate swap contracts on certain borrowings. Refer to Note 12 for further discussion of derivative instruments.
Schedule of Federal Home Loan Bank Advances	The terms of the Company's outstanding FHLBB borrowings, including overnight funding, were as follows for the dates indicated: December 31, (Dollars in thousands) 2023 2022 Stated Maturity Outstanding Balance Weighted Average Contractual Rate Outstanding Balance Weighted Average Contractual Rate January 2024 $ 99,950 5.54 % $ 18,725 4.38 % March 2024 50,000 5.51 % 50,000 4.93 % Total $ 149,950 $ 68,725

Repurchase Agreements (Tables)

Repurchase Agreements (Tables)	12 Months Ended
Repurchase Agreements (Tables)	Dec. 31, 2023
Banking and Thrift, Other Disclosure [Abstract]
Schedule of Underlying Assets of Repurchase Agreements when Amount of Repurchase Agreements Exceeds 10 Percent of Assets	The table below sets forth information regarding the Company’s repurchase agreements accounted for as secured borrowings, allocated by source of collateral, as of the dates indicated: December 31, (In thousands) 2023 2022 Customer Repurchase Agreements (1)(2) : Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises $ 179,809 $ 99,105 Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises 20,848 94,328 Obligations of states and political subdivisions — 3,018 Total $ 200,657 $ 196,451 (1) Presented within short-term borrowings on the consolidated statements of condition. (2) All customer repurchase agreements mature continuously or overnight for the dates indicated.

Commitments and Contingencies (

Commitments and Contingencies (Tables)	12 Months Ended
Commitments and Contingencies (Tables)	Dec. 31, 2023
Commitments and Contingencies Disclosure [Abstract]
Summary of Contractual and Notional Amounts of Financial Instruments	The following is a summary of the Company's contractual off-balance sheet commitments as of the dates indicated: December 31, (In thousands) 2023 2022 Commitments to extend credit $ 706,719 $ 817,772 Standby letters of credit 5,998 6,801 Total $ 712,717 $ 824,573

Derivatives and Hedging (Tables

Derivatives and Hedging (Tables)	12 Months Ended
Derivatives and Hedging (Tables)	Dec. 31, 2023
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivative Instruments [Table Text Block]	The following table presents the fair value of the Company's derivative financial instruments as well as their classification on the consolidated statements of condition as of the dates indicated: Derivative Assets Derivative Liabilities (In thousands) Notional Location Fair Notional Location Fair December 31, 2023 Derivatives designated as hedging instruments: Interest rate contracts (1) $ 435,000 Other assets $ 12,206 $ 258,000 Accrued interest and other liabilities $ 3,387 Total derivatives designated as hedging instruments $ 12,206 $ 3,387 Derivatives not designated as hedging instruments: Customer loan swaps (1) $ 298,143 Other assets $ 10,699 $ 298,143 Accrued interest and other liabilities $ 10,748 Risk participation agreements 28,077 Other assets — 52,193 Accrued interest and other liabilities — Fixed Rate mortgage interest rate lock commitments 10,924 Other assets 215 2,092 Accrued interest and other liabilities 11 Forward delivery commitments 3,445 Other assets 51 6,706 Accrued interest and other liabilities 132 Total derivatives not designated as hedging instruments $ 10,965 $ 10,891 December 31, 2022 Derivatives designated as hedging instruments: Interest rate contracts (1) $ 110,000 Other assets $ 13,051 $ 133,000 Accrued interest and other liabilities $ 5,515 Total derivatives designated as hedging instruments $ 13,051 $ 5,515 Derivatives not designated as hedging instruments: Customer loan swaps (1) $ 260,130 Other assets $ 14,802 $ 260,130 Accrued interest and other liabilities $ 14,850 Risk participation agreements 21,818 Other assets — 44,438 Accrued interest and other liabilities — Fixed Rate mortgage interest rate lock commitments 4,493 Other assets 31 9,597 Accrued interest and other liabilities 87 Forward delivery commitments 5,259 Other assets 114 — Accrued interest and other liabilities — Total derivatives not designated as hedging instruments $ 14,947 $ 14,937 (1) Reported fair values include accrued interest receivable and payable. The following table shows the carrying amount and associated cumulative basis adjustments related to the application of hedge accounting that is included in the carrying amount of hedged assets and liabilities in fair value hedging relationships: Location in Consolidated Statements of Condition Carrying Amount of Hedged Assets/(Liabilities) Cumulative Fair Value Hedging Adjustment in the Carrying Amount of the Hedged Assets/(Liabilities) (Dollars in thousands) December 31, 2023 December 31, 2022 December 31, 2023 December 31, 2022 Loans (1) $ 374,032 $ — $ (968) $ — Total $ 374,032 $ — $ (968) $ — (1) These amounts include the amortized cost basis of residential real estate loans that were used to designate hedging relationships in which the hedged item is the stated amount of assets in the closed portfolio anticipated to be outstanding for the designated hedged period. At December 31, 2023 and 2022, the amortized cost basis of the residential real estate loans used in these hedging relationships was $806.5 million and $0, respectively, and the amount of the designated hedged residential loans was $375.0 million and $0, respectively.
Schedule of Cash Flow Hedging Instruments, Statements of Financial Performance and Financial Position, Location [Table Text Block]	The table below presents the effect of cash flow hedge accounting, before tax, on AOCI for the periods indicated: (Dollars in thousands) Amount of Gain (Loss) Recognized in OCI on Derivative Amount of Gain (Loss) Recognized in OCI Included Component Amount of Gain (Loss) Recognized in OCI Excluded Component Location of Gain (Loss) Recognized Amount of Gain (Loss) Reclassified from AOCI into Income Amount of Gain (Loss) Reclassified from AOCI into Income Included Component Amount of Gain (Loss) Reclassified from AOCI into Income Excluded Component For the Year Ended December 31, 2023 Interest rate contracts $ (795) $ (795) $ — Interest and fees on loans $ (3,446) $ (3,446) $ — Interest rate contracts (1) (1) — Interest on deposits 306 306 — Interest rate contracts 455 455 — Interest on borrowings 2,351 2,351 — Interest rate contracts 520 520 — Interest on junior subordinated debentures 707 707 — Total $ 179 $ 179 $ — $ (82) $ (82) $ — For the Year Ended December 31, 2022 Interest rate contracts $ (6,147) $ (6,147) $ — Interest and fees on loans $ 5 $ 5 $ — Interest rate contracts 5,892 5,892 — Interest on deposits 441 441 — Interest rate contracts 2,455 2,455 — Interest on borrowings 551 551 — Interest rate contracts 7,838 7,838 — Interest on junior subordinated debentures (729) (729) — Total $ 10,038 $ 10,038 $ — $ 268 $ 268 $ — For the Year Ended December 31, 2021 Interest rate contracts $ (1,697) $ (1,697) $ — Interest and fees on loans $ 1,614 $ 1,614 $ — Interest rate contracts 2,447 2,447 — Interest on deposits (661) (661) — Interest rate contracts 2,237 2,237 — Interest on junior subordinated debentures (1,593) (1,593) — Total $ 2,987 $ 2,987 $ — $ (640) $ (640) $ — The table below presents the effect of cash flow hedge accounting on the consolidated statements of income for the periods indicated: Location and Amount of Gain (Loss) Recognized in Income For the Year Ended 2023 2022 2021 (Dollars in thousands) Interest and Fees on Loans Interest on Deposits Interest on borrowings Interest on Subordinated Debentures Interest and Fees on Loans Interest on Deposits Interest on borrowings Interest on Subordinated Debentures Interest and Fees on Loans Interest on Deposits Interest on Subordinated Debentures Total presented on the consolidated statements of income in which the effects of cash flow hedges are recorded $ 195,379 $ 78,884 $ 12,949 $ 2,150 $ 144,709 $ 20,305 $ 2,649 $ 2,140 $ 125,437 $ 7,920 $ 2,523 Gain (loss) on fair value hedging relationships Interest rate contracts: Hedged items $ (15,613) $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Derivatives designated as hedging instruments $ 20,317 $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — Gain (loss) on cash flow hedging relationships Interest rate contracts: Amount of gain (loss) reclassified from AOCI into income $ (3,446) $ 306 $ 2,351 $ 707 $ 5 $ 441 $ 551 $ (729) $ 1,614 $ (661) $ (1,593) Amount of gain (loss) reclassified from AOCI into income - included component $ (3,446) $ 306 $ 2,351 $ 707 $ 5 $ 441 $ 551 $ (729) $ 1,614 $ (661) $ (1,593) Amount of gain (loss) reclassified from AOCI into income - excluded component $ — $ — $ — $ — $ — $ — $ — $ — $ — $ — $ —
Derivatives Not Designated as Hedging Instruments	The table below presents the effect of the Company's derivative financial instruments that are not designated as hedging instruments on the consolidated statements of income for the periods indicated: Amount of Gain (Loss) Recognized in Income Location of Gain (Loss) Recognized in Income For the Year Ended (Dollars in thousands) 2023 2022 2021 Customer loan swaps Other expense $ (1) $ (336) $ (189) Fixed rate mortgage interest rate lock commitments Mortgage banking income, net 109 34 (80) Forward delivery commitments Mortgage banking income, net (195) 140 (35) Total $ (87) $ (162) $ (304)

Balance Sheet Offsetting (Table

Balance Sheet Offsetting (Tables)	12 Months Ended
Balance Sheet Offsetting (Tables)	Dec. 31, 2023
Offsetting [Abstract]
Offsetting Assets	The following table presents the Company's derivative positions and repurchase agreements, and the potential effect of netting arrangements on its consolidated statements of condition, as of the dates indicated: Gross Amount Not Offset in the Consolidated Statements of Condition (In thousands) Gross Amount Recognized in the Consolidated Statements of Condition Gross Amount Offset in the Consolidated Statements of Condition Net Amount Presented in the Consolidated Statements of Condition Financial Instruments Pledged (Received) (1) Cash Collateral Pledged (Received) (1) Net Amount December 31, 2023 Derivative assets: Customer loan swaps - dealer bank (2) $ 9,168 $ — $ 9,168 $ — $ (8,800) $ 368 Customer loan swaps - commercial customer (3) 1,531 — 1,531 — — 1,531 Interest rate contracts (2) 12,206 — 12,206 — (10,071) 2,135 Total $ 22,905 $ — $ 22,905 $ — $ (18,871) $ 4,034 Derivative liabilities: Customer loan swaps - commercial customer (3) $ 10,748 $ — 10,748 $ — $ — $ 10,748 Interest rate contracts (2) 3,387 — 3,387 — 3,387 — Total $ 14,135 $ — $ 14,135 $ — $ 3,387 $ 10,748 Customer repurchase agreements $ 200,657 $ — $ 200,657 $ 200,657 $ — $ — December 31, 2022 Derivative assets: Customer loan swaps - dealer bank (2) $ 14,802 $ — $ 14,802 $ — $ — $ 14,802 Interest rate contracts (2) 13,051 — 13,051 — (10,915) 2,136 Total $ 27,853 $ — $ 27,853 $ — $ (10,915) $ 16,938 Derivative liabilities: Customer loan swaps - commercial customer (3) $ 14,850 $ — 14,850 $ — $ — $ 14,850 Interest rate contracts (2) 5,515 — 5,515 — 5,515 — Total $ 20,365 $ — $ 20,365 $ — $ 5,515 $ 14,850 Customer repurchase agreements $ 196,451 $ — $ 196,451 $ 196,451 $ — $ — (1) The amount presented was the lesser of the amount pledged (received) or the net amount presented in the consolidated statements of condition. (2) The Company maintains master netting arrangements with each counterparty and settles collateral on a net basis for all contracts.
Offsetting Liabilities	The following table presents the Company's derivative positions and repurchase agreements, and the potential effect of netting arrangements on its consolidated statements of condition, as of the dates indicated: Gross Amount Not Offset in the Consolidated Statements of Condition (In thousands) Gross Amount Recognized in the Consolidated Statements of Condition Gross Amount Offset in the Consolidated Statements of Condition Net Amount Presented in the Consolidated Statements of Condition Financial Instruments Pledged (Received) (1) Cash Collateral Pledged (Received) (1) Net Amount December 31, 2023 Derivative assets: Customer loan swaps - dealer bank (2) $ 9,168 $ — $ 9,168 $ — $ (8,800) $ 368 Customer loan swaps - commercial customer (3) 1,531 — 1,531 — — 1,531 Interest rate contracts (2) 12,206 — 12,206 — (10,071) 2,135 Total $ 22,905 $ — $ 22,905 $ — $ (18,871) $ 4,034 Derivative liabilities: Customer loan swaps - commercial customer (3) $ 10,748 $ — 10,748 $ — $ — $ 10,748 Interest rate contracts (2) 3,387 — 3,387 — 3,387 — Total $ 14,135 $ — $ 14,135 $ — $ 3,387 $ 10,748 Customer repurchase agreements $ 200,657 $ — $ 200,657 $ 200,657 $ — $ — December 31, 2022 Derivative assets: Customer loan swaps - dealer bank (2) $ 14,802 $ — $ 14,802 $ — $ — $ 14,802 Interest rate contracts (2) 13,051 — 13,051 — (10,915) 2,136 Total $ 27,853 $ — $ 27,853 $ — $ (10,915) $ 16,938 Derivative liabilities: Customer loan swaps - commercial customer (3) $ 14,850 $ — 14,850 $ — $ — $ 14,850 Interest rate contracts (2) 5,515 — 5,515 — 5,515 — Total $ 20,365 $ — $ 20,365 $ — $ 5,515 $ 14,850 Customer repurchase agreements $ 196,451 $ — $ 196,451 $ 196,451 $ — $ — (1) The amount presented was the lesser of the amount pledged (received) or the net amount presented in the consolidated statements of condition. (2) The Company maintains master netting arrangements with each counterparty and settles collateral on a net basis for all contracts.

Shareholders' Equity (Tables)

Shareholders' Equity (Tables)	12 Months Ended
Shareholders' Equity (Tables)	Dec. 31, 2023
Stockholders' Equity Note [Abstract]
Schedule of Compliance with Regulatory Capital Requirements	The following table presents the Company and Bank's regulatory capital ratios at the periods indicated: December 31, Minimum Regulatory Capital Required for Capital Adequacy Plus Capital Conservation Buffer Minimum Regulatory Provision to Be “Well Capitalized” December 31, Minimum Regulatory Capital Required for Capital Adequacy Plus Capital Conservation Buffer Minimum Regulatory Provision to Be “Well Capitalized” Amount Ratio Amount Ratio Camden National Corporation: Total risk-based capital ratio $ 577,440 14.36 % 10.50 % 10.00 % $ 557,571 13.80 % 10.50 % 10.00 % Tier 1 risk-based capital ratio 538,153 13.38 % 8.50 % 6.00 % 517,385 12.81 % 8.50 % 6.00 % Common equity Tier 1 risk-based capital ratio (1) 495,153 12.31 % 7.00 % N/A 474,385 11.74 % 7.00 % N/A Tier 1 leverage capital ratio (1) 538,153 9.40 % 4.00 % N/A 517,385 9.22 % 4.00 % N/A Camden National Bank: Total risk-based capital ratio $ 549,221 13.70 % 10.50 % 10.00 % $ 525,346 13.03 % 10.50 % 10.00 % Tier 1 risk-based capital ratio 509,934 12.72 % 8.50 % 8.00 % 485,160 12.03 % 8.50 % 8.00 % Common equity Tier 1 risk-based capital ratio 509,934 12.72 % 7.00 % 6.50 % 485,160 12.03 % 7.00 % 6.50 % Tier 1 leverage capital ratio 509,934 8.91 % 4.00 % 5.00 % 485,160 8.65 % 4.00 % 5.00 % (1) “Minimum Regulatory Provisions to Be ‘Well Capitalized’” are not formally defined under applicable banking regulations for bank holding companies.

Other Comprehensive Income (L_2

Other Comprehensive Income (Loss) (Tables)	12 Months Ended
Other Comprehensive Income (Loss) (Tables)	Dec. 31, 2023
Equity [Abstract]
Schedule of Comprehensive Income (Loss)	The following tables present a reconciliation of the changes in the components of other comprehensive income and loss for the periods indicated, including the amount of tax (expense) benefit allocated to each component: For the Year Ended 2023 2022 2021 (In thousands) Pre-Tax Tax (Expense) After-Tax Pre-Tax Tax (Expense) After-Tax Pre-Tax Tax (Expense) After-Tax Debt Securities: Change in fair value $ 13,646 $ (2,932) $ 10,714 $ (172,699) $ 37,131 $ (135,568) $ (38,832) $ 8,349 $ (30,483) Less: reclassification adjustment for amortization of securities transferred from AFS to HTM (6,781) 1,458 (5,323) (5,715) 1,229 (4,486) — — — Less: reclassification adjustment for net realized losses (1) (10,310) 2,217 (8,093) (912) 196 (716) — — — Net change in fair value 30,737 (6,607) 24,130 (166,072) 35,706 (130,366) (38,832) 8,349 (30,483) Cash Flow Hedges: Change in fair value 179 (38) 141 10,038 (2,158) 7,880 2,987 (642) 2,345 Less: reclassified AOCI gain (loss) into interest expense (2) 3,364 (723) 2,641 263 (57) 206 (2,254) 485 (1,769) Less: reclassified AOCI gain into interest income (3) (3,446) 741 (2,705) 5 (1) 4 1,614 (347) 1,267 Net change in fair value 261 (56) 205 9,770 (2,100) 7,670 3,627 (780) 2,847 Postretirement Plans: Net actuarial gain (loss) 114 (25) 89 2,859 (614) 2,245 (20) 4 (16) Less: Amortization of net actuarial loss (4) 3 (1) 2 (947) 203 (744) (894) 192 (702) Less: Amortization of net prior service credits (4) 24 (5) 19 24 (5) 19 24 (5) 19 Net gain (loss) on postretirement plans 87 (19) 68 3,782 (812) 2,970 850 (183) 667 Other comprehensive (loss) income $ 31,085 $ (6,682) $ 24,403 $ (152,520) $ 32,794 $ (119,726) $ (34,355) $ 7,386 $ (26,969) (1) Reclassified into net loss on sale of securities in the consolidated statements of income. Refer to Note 2 of the consolidated financial statements for further details. (2) Reclassified into interest on deposits, borrowings and/or junior subordinated debentures on the consolidated statements of income. Refer to Note 12 of the consolidated financial statements for further details. (3) Reclassified into interest and fees on loans on the consolidated statements of income. Refer to Note 12 of the consolidated financial statements for further details. (4) Reclassified into other expenses on the consolidated statements of income. Refer to Note 18 of the consolidated financial statements for further details.
Schedule of Accumulated Other Comprehensive Income (Loss)	The following table presents the changes in each component of AOCI for the periods indicated: (In thousands) Net Unrealized (Losses) Gains on Debt Securities (1) Net Unrealized (Losses) Gains on Cash Flow Hedges (1) Defined Benefit Postretirement Plans (1) AOCI (1) Balance at December 31, 2020 $ 29,310 $ (4,626) $ (3,944) $ 20,740 Other comprehensive income (loss) before reclassifications (30,483) 2,345 — (28,138) Less: Amounts reclassified from AOCI — (502) (667) (1,169) Other comprehensive income (loss) (30,483) 2,847 667 (26,969) Balance at December 31, 2021 (1,173) (1,779) (3,277) (6,229) Other comprehensive income (loss) before reclassifications (126,596) 7,880 — (118,716) Less: Amounts reclassified from AOCI 3,770 210 (2,970) 1,010 Other comprehensive income (loss) (130,366) 7,670 2,970 (119,726) Balance at December 31, 2022 (131,539) 5,891 (307) (125,955) Other comprehensive (loss) income before reclassifications 21,363 141 — 21,504 Less: Amounts reclassified from AOCI (2,767) (64) (68) (2,899) Other comprehensive (loss) income 24,130 205 68 24,403 Balance at December 31, 2023 $ (107,409) $ 6,096 $ (239) $ (101,552) (1) All amounts are net of tax.

Revenue from Contracts with C_2

Revenue from Contracts with Customers (Tables)	12 Months Ended
Revenue from Contracts with Customers (Tables)	Dec. 31, 2023
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenue	The following table presents the revenue streams with the scope of ASC 606 for the periods indicated: For the Year Ended (In thousands) Location on Consolidated 2023 2022 2021 Debit card interchange income Debit card income $ 12,613 $ 13,340 $ 13,105 Services charges on deposit accounts Service charges on deposit accounts 7,839 7,587 6,626 Fiduciary services income Income from fiduciary services 6,669 6,407 6,516 Investment program income Brokerage and insurance commissions 4,650 4,147 3,913 Other non-interest income Other income 1,796 1,793 1,794 Total non-interest income within the scope of ASC 606 33,567 33,274 31,954 Total non-interest income not in scope of ASC 606 (1) (2,533) 7,428 17,781 Total non-interest income $ 31,034 $ 40,702 $ 49,735 (1) Includes pre-tax losses on the sale of investment securities of $10.3 million, $912,000 and $0, for the years ended December 31, 2023, 2022 and 2021, respectively.

Stock-Based Compensation Plans

Stock-Based Compensation Plans (Tables)	12 Months Ended
Stock-Based Compensation Plans (Tables)	Dec. 31, 2023
Share-Based Payment Arrangement [Abstract]
Schedule of Compensation Expense	The expense and the related income tax benefit recognized in connection with the restricted stock units was as follows for the periods indicated: For the Year Ended (In thousands) 2023 2022 2021 Expense $ 962 $ 724 $ 610 Income tax benefit 207 156 131 Fair value of grants vested 803 622 506 For the Year Ended (In thousands) 2023 2022 2021 Expense $ 1,225 $ 1,053 $ 895 Income tax benefit 263 226 192 Fair value of grants vested 1,187 1,014 901 For the Year Ended (In thousands) 2023 2022 2021 Expense $ 93 $ 124 $ 104 Income tax benefit 20 27 22 Fair value of grants vested 129 87 70 For the Year Ended (In thousands) 2023 2022 2021 Expense $ 332 $ 457 $ 637 Related income tax benefit 71 98 137 Fair value of grants vested 594 548 435 For the Year Ended (In thousands) 2023 2022 2021 Expense $ 188 $ 169 $ 135 Related income tax benefit 40 36 29 Fair value of grants vested 171 174 118
Summary of Nonvested Share Awards Activity	Restricted stock unit activity for the year ended December 31, 2023 was as follows: (Dollars in thousands, except per unit data) Number of Units Weighted-Average Weighted-Average Aggregate Unrecognized Nonvested at January 1, 2023 57,822 $ 44.88 Granted 44,730 36.21 Vested (19,032) 42.17 Forfeited (8,789) 43.19 Nonvested at December 31, 2023 74,731 $ 40.58 2.75 $ 2,812 $ 2,261 Restricted stock award activity, which includes awards issued to directors of the Company, for the year ended December 31, 2023 was as follows: (Dollars in thousands, except per share data) Number of Shares Weighted-Average Weighted-Average Aggregate Unrecognized Nonvested at January 1, 2023 20,536 $ 44.53 Granted 44,451 32.80 Vested (33,763) 35.16 Forfeited (2,690) 40.19 Nonvested at December 31, 2023 28,534 $ 37.76 1.9 $ 1,074 $ 672 MSPP award activity for the year ended December 31, 2023 was as follows: (Dollars in thousands, except per share data) Number of Shares Weighted-Average Weighted-Average Aggregate Unrecognized Nonvested at January 1, 2023 17,184 $ 14.12 Granted 8,037 9.84 Vested (7,886) 16.34 Forfeited (761) 11.63 Nonvested at December 31, 2023 16,574 $ 11.10 0.6 $ 66 $ 51 LTIP performance-based share unit activity for the year ended December 31, 2023 was as follows: (Dollars in thousands, except per share data) Number of Shares Weighted-Average Weighted-Average Aggregate Unrecognized Nonvested at January 1, 2023 61,186 $ 41.65 Granted (1) 46,372 34.00 Vested (17,283) 34.39 Forfeited (2) (17,193) 36.96 Nonvested at December 31, 2023 73,082 $ 39.92 1.6 $ 2,917 $ 458 (1) Number of shares granted assumes payout at 200% of target. (2) Forfeited shares consists of 11,895 shares forfeited due to payout at less than 200% of target. DCRP award activity for the year ended December 31, 2023 was as follows: (Dollars in thousands, except per award data) Number of Deferred Stock Awards Weighted-Average Weighted-Average Aggregate Unrecognized Nonvested at January 1, 2023 8,382 $ 44.85 Granted 7,958 36.21 Vested (4,430) 38.62 Forfeited (750) 36.21 Nonvested at December 31, 2023 11,160 $ 41.74 13.7 $ 420 $ 405

Employee Benefit Plans (Tables)

Employee Benefit Plans (Tables)	12 Months Ended
Employee Benefit Plans (Tables)	Dec. 31, 2023
Retirement Benefits [Abstract]
Schedule of Changes in Benefit Obligation and Plan Assets	The following table summarizes changes in the benefit obligation and plan assets for each postretirement benefit plan as of the dates indicated: SERP Other Postretirement December 31, December 31, (In thousands) 2023 2022 2023 2022 Benefit obligations: Beginning of year $ 15,042 $ 16,610 $ 3,261 $ 4,167 Service cost 281 534 11 21 Interest cost 756 460 162 111 Actuarial (gain) loss (65) (1,996) (48) (863) Benefits paid (526) (566) (171) (175) End of year 15,488 15,042 3,215 3,261 Fair value of plan assets: Beginning of year — — — — Employer contributions 526 566 171 175 Benefits paid (526) (566) (171) (175) End of year — — — — Unfunded status at end of year (1) $ 15,488 $ 15,042 $ 3,215 $ 3,261 Amounts recognized in AOCI, net of tax: Net actuarial loss (gain) $ 361 $ 412 $ (57) $ (76) Prior service credit — — (65) (29) Total $ 361 $ 412 $ (122) $ (105) (1) Presented within other liabilities on the consolidated statements of condition.
Schedule of Net Period Benefit Cost and Other Amounts Recognized in Other Comprehensive Income	The components of net periodic benefit cost and other amounts recognized in OCI, before taxes, were as follows for the periods indicated: SERP Other Postretirement For the Year Ended For the Year Ended (In thousands) 2023 2022 2021 2023 2022 2021 Net periodic benefit cost: Service cost (1) $ 281 $ 534 $ 504 $ 11 $ 21 $ 26 Interest cost (2) 756 460 389 162 111 103 Recognized net actuarial loss (gain) (2) — 859 778 (3) 88 116 Amortization of prior service credit (2) — — — (24) (24) (24) Net periodic benefit cost 1,037 1,853 1,671 146 196 221 Changes in funded status recognized in OCI, before taxes: Net actuarial (gain) loss arising during period (65) (1,996) 222 (49) (863) (202) Reclassifications to net periodic benefit cost: Amortization of net unrecognized actuarial (loss) gain — (859) (778) 3 (88) (116) Amortization of prior service credit — — — 24 24 24 Total recognized in OCI, before taxes (65) (2,855) (556) (22) (927) (294) Total recognized in net periodic benefit cost and OCI, before taxes $ 972 $ (1,002) $ 1,115 $ 124 $ (731) $ (73) (1) Presented in salaries and employee benefits on the consolidated statements of income. (2) Presented in other expenses on the consolidated statements of income.
Schedule of Assumptions Used in Determining Benefit Obligations and Net Period Benefit Costs	The following assumptions were used in determining benefit obligations and net period benefit costs. As of December 31, 2023, the SERP no longer has active participants and rate of compensation increases assumptions are no longer used. SERP Other Postretirement 2023 2022 2021 2023 2022 2021 Weighted-average assumptions as of end of year: Discount rate for benefit obligation 4.9 % 5.1 % 2.8 % 5.0 % 5.2 % 2.8 % Discount rate for net periodic benefit cost 5.1 % 2.8 % 2.5 % 5.2 % 2.8 % 2.4 % Rate of compensation increase for benefit obligation (1) N/A 3.0 % 3.0 % N/A N/A N/A Rate of compensation increase for net periodic benefit cost (1) N/A 3.0 % 3.0 % N/A N/A N/A Health care cost trend rate assumed for future years N/A N/A N/A 4.5% - 7.5% 4.5% - 7.5% 4.5% - 6.5% (1) As of December 31, 2023, there were no active participants in the SERP.
Schedule of Estimated Future Benefit Payments	The expected benefit payments for the next ten years are presented in the following table: (In thousands) SERP Other Postretirement 2024 $ 1,293 $ 286 2025 1,201 276 2026 1,201 260 2027 1,177 238 2028 1,194 246 Next 5 years 5,749 1,096

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
Income Taxes (Tables)	Dec. 31, 2023
Income Tax Disclosure [Abstract]
Schedule of Income Tax Expense	The current and deferred components of income tax expense on the consolidated statements of income were as follows: For the Year Ended (In thousands) 2023 2022 2021 Current: Federal $ 7,990 $ 12,334 $ 16,555 State 1,156 1,489 1,709 Total 9,146 13,823 18,264 Deferred: Federal 1,277 1,743 (622) State 30 42 (15) Total 1,307 1,785 (637) Income tax expense $ 10,453 $ 15,608 $ 17,627
Reconciliation of Expected Income Tax Benefit Computed Using Federal Statutory Income Tax Rate	The income tax expense differs from the amount computed by applying the statutory federal income tax rate of 21.0% as a result of the following: For the Year Ended (Dollars in thousands) 2022 2022 2021 Computed tax expense $ 11,306 $ 16,180 $ 18,195 Increase (reduction) in income taxes resulting from: State taxes, net of federal benefit 937 1,209 1,338 Low income housing credits (831) (846) (591) Tax exempt income (647) (732) (782) Income from life insurance (493) (399) (496) Share-based awards 69 (100) (103) Other 112 296 66 Income tax expense $ 10,453 $ 15,608 $ 17,627 Income before income tax expense $ 53,836 $ 77,047 $ 86,641 Effective tax rate 19.4 % 20.3 % 20.3 %
Schedule of Deferred Tax Assets and Deferred Tax Liabilities	Temporary differences between the financial statements carrying amounts and the tax bases of assets and liabilities gave rise to the following deferred tax assets and liabilities as of the dates indicated: December 31, 2023 2022 (In thousands) Asset Liability Asset Liability Net unrealized losses on AFS debt securities $ 29,418 $ — $ 36,027 $ — Allowance for credit losses 8,447 — 8,640 — Net operating loss and tax credit carryforward 7,084 — 7,913 — Pension and other benefits 4,656 — 4,536 — Deferred compensation and benefits 1,033 — 892 — Deferred loan origination fees — (3,235) — (3,253) Depreciation — (2,359) — (2,536) Net unrealized (gains) losses on derivative instruments — (1,670) — (1,613) Other — (1,148) — (389) Gross deferred tax assets (liabilities) $ 50,638 $ (8,412) $ 58,008 $ (7,791) Valuation allowance on deferred tax assets — — Net deferred tax assets $ 42,226 $ 50,217

EPS (Tables)

EPS (Tables)	12 Months Ended
EPS (Tables)	Dec. 31, 2023
Earnings Per Share [Abstract]
Computation of Basic and Diluted Earnings Per Share	The following is an analysis of basic and diluted EPS, reflecting the application of the two-class method, as described below: For the Year Ended (In thousands, except number of shares and per share data) 2023 2022 2021 Net income $ 43,383 $ 61,439 $ 69,014 Dividends and undistributed earnings allocated to participating securities (1) (53) (162) (190) Net income available to common shareholders $ 43,330 $ 61,277 $ 68,824 Weighted-average common shares outstanding for basic EPS 14,563,380 14,644,170 14,903,855 Dilutive effect of stock-based awards (2) 45,965 56,840 67,723 Weighted-average common and potential common shares for diluted EPS 14,609,345 14,701,010 14,971,578 Earnings per common share: Basic EPS $ 2.98 $ 4.18 $ 4.62 Diluted EPS $ 2.97 $ 4.17 $ 4.60 Awards excluded from the calculation of diluted EPS (3) : Performance-based share units 3,075 — — Restricted shares 9,049 — — (1) Represents dividends paid and undistributed earnings allocated to non-vested stock-based awards that contain non-forfeitable rights to dividends. (2) Represents the assumed dilutive effect of restricted shares, restricted share units and contingently issuable performance-based share units utilizing the treasury stock method. (3) Represents stock-based awards not included in the computation of potential common shares for purposes of calculating diluted EPS as the exercise prices were greater than the average market price of the Company's common stock, and, therefore, are considered anti-dilutive.

Fair Value (Tables)

Fair Value (Tables)	12 Months Ended
Fair Value (Tables)	Dec. 31, 2023
Fair Value Disclosures [Abstract]
Summary of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis	The following table summarizes financial assets and financial liabilities measured at fair value on a recurring basis segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value for the dates indicated: (In thousands) Fair Value Readily Available Market Prices Observable Market Data Company Determined Fair Value December 31, 2023 Financial assets: Trading securities $ 4,647 $ 4,647 $ — $ — AFS debt securities: Obligations of states and political subdivisions 6,386 — 6,386 — MBS issued or guaranteed by U.S. government-sponsored enterprises 460,091 — 460,091 — CMO issued or guaranteed by U.S. government-sponsored enterprises 141,011 — 141,011 — Subordinated corporate bonds 18,320 — 18,320 — Loans held for sale 10,320 — 10,320 — Customer loan swaps 10,699 — 10,699 — Interest rate contracts 12,206 — 12,206 — Fixed rate mortgage interest rate lock commitments 215 — 215 — Forward delivery commitments 51 — 51 — Financial liabilities: Deferred compensation $ 4,647 $ 4,647 $ — $ — Customer loan swaps 10,748 — 10,748 — Interest rate contracts 3,387 — 3,387 — Fixed rate mortgage interest rate lock commitments 11 — 11 — Forward delivery commitments 132 — 132 — December 31, 2022 Financial assets: Trading securities $ 3,990 $ 3,990 $ — $ — AFS debt securities: Obligations of states and political subdivisions 49,226 — 49,226 — MBS issued or guaranteed by U.S. government-sponsored enterprises 514,019 — 514,019 — CMO issued or guaranteed by U.S. government-sponsored enterprises 109,347 — 109,347 — Corporate bonds 23,283 — 23,283 — Loans held for sale 5,197 — 5,197 — Customer loan swaps 14,802 — 14,802 — Interest rate contracts 13,051 — 13,051 — Fixed rate mortgage interest rate lock commitments 31 — 31 — Forward delivery commitments 114 — 114 — Financial liabilities: Deferred compensation $ 3,990 $ 3,990 $ — $ — Customer loan swaps 14,850 — 14,850 — Interest rate contracts 5,515 — 5,515 — Fixed rate mortgage interest rate lock commitments 87 — 87 —
Carrying Amounts and Estimated Fair Value for Financial Instrument Assets and Liabilities	The estimated fair values and related carrying amounts for assets and liabilities for which fair value is only disclosed are shown below as of the dates indicated: (In thousands) Carrying Amount Fair Value Readily Available Market Prices Observable Market Prices Company Determined Market Prices December 31, 2023 Financial Assets: HTM debt securities $ 544,931 $ 510,595 $ — $ 510,595 $ — Commercial real estate loans (1)(2) 1,653,435 1,540,327 — — 1,540,327 Commercial loans (2) 399,032 385,585 — — 385,585 Residential real estate loans (2) 1,753,124 1,488,248 — — 1,488,248 Home equity loans (2) 238,124 233,025 — — 233,025 Consumer loans (2) 17,444 15,279 — — 15,279 Servicing assets 2,274 4,124 — — 4,124 Financial liabilities: Time deposits $ 640,539 $ 634,856 $ — $ 634,856 $ — Short-term borrowings 485,607 484,849 — 484,849 — Junior subordinated debentures 44,331 31,918 — 31,918 — December 31, 2022 Financial assets: HTM debt securities $ 546,583 $ 506,193 $ — $ 506,193 $ — Commercial real estate loans (1)(2) 1,605,279 1,550,379 — — 1,550,379 Commercial loans (2) 424,685 414,353 — — 414,353 Residential real estate loans (2) 1,691,177 1,494,707 — — 1,494,707 Home equity loans (2) 232,203 237,967 — — 237,967 Consumer loans (2) 20,087 17,853 — — 17,853 Servicing assets 2,458 4,412 — — 4,412 Financial liabilities: Time deposits $ 399,376 $ 390,463 $ — $ 390,463 $ — Short-term borrowings 265,176 264,779 — 264,779 — Junior subordinated debentures 44,331 31,032 — 31,032 — (1) Commercial real estate loans includes non-owner-occupied and owner-occupied properties. (2) The presented carrying amount is net of the allocated ACL on loans.
Summary of Assets Measured at Fair Value on Non Recurring Basis	The table below highlights financial assets measured and reported at fair value on a non-recurring basis for the dates indicated: (In thousands) Fair Value Readily Available Market Prices Observable Market Data Company Determined December 31, 2023 Financial assets: Collateral-dependent loans $ 4,768 $ — $ — $ 4,768 December 31, 2022 Financial assets: Collateral-dependent loans $ 69 $ — $ — $ 69
Valuation Methodology and Unobservable Inputs for Level Three Assets Measured at Fair Value on Non Recurring Basis	The following table presents the valuation methodology and unobservable inputs for Level 3 assets measured at fair value on a non-recurring basis for the dates indicated: (Dollars in thousands) Fair Value Valuation Methodology Unobservable input Discount December 31, 2023 Collateral-dependent loans: Specifically reserved $ 4,768 Market approach appraisal of collateral Estimated selling costs 7% December 31, 2022 Collateral-dependent loans: Specifically reserved $ 69 Market approach appraisal Estimated selling costs 18%

Parent Company Financial Stat_2

Parent Company Financial Statements (Tables)	12 Months Ended
Parent Company Financial Statements (Tables)	Dec. 31, 2023
Condensed Financial Information Disclosure [Abstract]
Condensed Statements of Condition	Following are the condensed statements of condition, income and cash flows for the Company's parent company: STATEMENTS OF CONDITION December 31, (In thousands) 2023 2022 ASSETS Cash $ 35,219 $ 40,076 Investment in subsidiary 508,674 460,753 Receivable from subsidiary — 47 Other assets 14,142 9,410 Total assets $ 558,035 $ 510,286 LIABILITIES AND SHAREHOLDERS’ EQUITY Junior subordinated debentures $ 44,331 $ 44,331 Due to subsidiary — 16 Other liabilities 18,640 14,660 Shareholders’ equity 495,064 451,279 Total liabilities and shareholders’ equity $ 558,035 $ 510,286
Condensed Statements of Income	STATEMENTS OF INCOME For the Year Ended (In thousands) 2023 2022 2021 Operating Income Dividend income from subsidiary $ 22,500 $ 31,700 $ 41,700 Other income — 19 7 Total operating income 22,500 31,719 41,707 Operating Expenses Interest on borrowings 2,150 2,140 2,524 Fees to Bank 180 180 160 Other operating expenses 915 794 628 Total operating expenses 3,245 3,114 3,312 Income before equity in undistributed income of subsidiaries and income taxes 19,255 28,605 38,395 Equity in undistributed income of subsidiaries 23,389 32,129 29,869 Income before income taxes 42,644 60,734 68,264 Income tax benefit 739 705 750 Net Income $ 43,383 $ 61,439 $ 69,014
Condensed Statements of Cash Flows	STATEMENTS OF CASH FLOWS For the Year Ended (In thousands) 2023 2022 2021 Operating Activities Net income $ 43,383 $ 61,439 $ 69,014 Adjustments to reconcile net income to net cash provided by operating activities: Equity in undistributed income of subsidiaries (23,389) (32,129) (29,869) (Increase) decrease in other assets (4,884) 9,219 4,244 Increase (decrease) in due to subsidiaries 31 (187) 202 Increase (decrease) in other liabilities 4,005 (1,051) (558) Net cash provided by operating activities 19,146 37,291 43,033 Financing Activities Net proceeds from issuance of common stock 2,533 2,198 2,118 Common stock repurchases (2,000) (10,240) (10,090) Repayment of subordinated debt — — (15,000) Cash dividends paid on common stock (24,536) (23,512) (21,081) Net cash used in financing activities (24,003) (31,554) (44,053) Net (decrease) increase in cash, cash equivalents and restricted cash (4,857) 5,737 (1,020) Cash, cash equivalents and restricted cash at beginning of year 40,076 34,339 35,359 Cash, cash equivalents and restricted cash at end of year $ 35,219 $ 40,076 $ 34,339

Business and Summary of Signi_3

Business and Summary of Significant Accounting Policies (Details) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Jan. 01, 2020
Accounting Policy [Line Items]
Goodwill impairment	$ 0	$ 0	$ 0
BOLI single carrier percentage of Tier I capital	10%
BOLI CSV percentage of Tier I Capital	25%
Number of Reporting Unit Levels	1
Operating Lease, Right-of-Use Asset	$ 11,497,000	12,324,000
Operating lease liabilities	9,978,000	10,718,000
Shareholders’ equity	495,064,000	451,278,000	541,294,000	$ 529,314,000
Financing Receivable, Allowance for Credit Losses	36,935,000	36,922,000	33,256,000
Off-Balance Sheet, Credit Loss, Liability	2,400,000	3,300,000
Deferred tax assets	42,226,000	50,217,000
AFS debt securities, allowance	$ 0	0			$ 0
CCTA and UBCT
Accounting Policy [Line Items]
Equity Method Investment, Ownership Percentage	100%
Retained Earnings
Accounting Policy [Line Items]
Shareholders’ equity	$ 481,014,000	462,164,000	424,412,000	377,502,000
AOCI
Accounting Policy [Line Items]
Shareholders’ equity	$ (101,552,000)	$ (125,955,000)	$ (6,229,000)	$ 20,740,000

Investments (Additional Informa

Investments (Additional Information) (Details) - USD ($)	1 Months Ended	12 Months Ended
Investments (Additional Information) (Details) - USD ($)	Jun. 30, 2022	Dec. 31, 2023	Dec. 31, 2022	Jan. 01, 2020
Schedule of Investments [Line Items]
Trading securities		$ 4,647,000	$ 3,990,000
AFS debt securities, allowance		0	0	$ 0
Net unrealized loss on debt securities, net of tax		(60,500,000)	79,400,000
Deferred Tax Assets, Unrealized Losses on Available-for-Sale Securities, Gross			21,700,000
Deferred Tax Liabilities, Investments		16,600,000
Debt Securities, Held-to-Maturity, Excluded Accrued Interest from Amortized Cost		1,700,000
Security Owned And Pledged As Collateral Amortized Cost		675,500,000	821,900,000
Debt Securities, Held-to-Maturity, Credit Loss Expense (Reversal)		1,838,000	0
Debt Securities, Held-to-Maturity, Allowance for Credit Loss, Writeoff		(1,838,000)	0
Proceeds, Debt Securities, Held-to-Maturity, Previously Written off, Recovery		910,000
Asset Pledged as Collateral
Schedule of Investments [Line Items]
Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value		607,900,000	726,500,000
Transferred Securities
Schedule of Investments [Line Items]
AFS debt securities, fair value, transfer amount	$ 520,300,000
AFS debt securities, transfer, unrealized loss	$ 72,100,000
Net unrealized loss on debt securities, net of tax		46,900,000
Deferred Tax Assets, Unrealized Losses on Available-for-Sale Securities, Gross		12,800,000
Available-for-sale Securities
Schedule of Investments [Line Items]
Interest Receivable		1,700,000	$ 1,900,000
Signature Bank Corporate Bond
Schedule of Investments [Line Items]
Debt Securities, Held-to-Maturity, Allowance for Credit Loss, Writeoff		$ 8,000

Investments (Summary of Amortiz

Investments (Summary of Amortized Costs and Estimated Fair Values of Available-For-Sale Securities) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Debt Securities, Available-for-sale [Abstract]
Amortized Cost	$ 702,937	$ 796,960
Unrealized Gains	1,793	145
Unrealized Losses	(78,922)	(101,230)
Fair Value	625,808	695,875
Obligations of states and political subdivisions
Debt Securities, Available-for-sale [Abstract]
Amortized Cost	6,429	49,678
Unrealized Gains	1	11
Unrealized Losses	(44)	(463)
Fair Value	6,386	49,226
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises
Debt Securities, Available-for-sale [Abstract]
Amortized Cost	525,439	598,845
Unrealized Gains	630	131
Unrealized Losses	(65,978)	(84,957)
Fair Value	460,091	514,019
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises
Debt Securities, Available-for-sale [Abstract]
Amortized Cost	149,387	122,760
Unrealized Gains	1,161	0
Unrealized Losses	(9,537)	(13,413)
Fair Value	141,011	109,347
Subordinated corporate bonds
Debt Securities, Available-for-sale [Abstract]
Amortized Cost	21,682	25,677
Unrealized Gains	1	3
Unrealized Losses	(3,363)	(2,397)
Fair Value	$ 18,320	$ 23,283

Investments (Company's Sale of

Investments (Company's Sale of AFS Investments) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Debt Securities, Available-for-sale [Line Items]
Proceeds from sales	$ 126,766	$ 36,280	$ 0
Gross realized gains	0	13	0
Gross realized losses	$ 10,310	$ (925)	$ 0

Investments (Unrealized Gross L

Investments (Unrealized Gross Losses and Estimated Fair values of Investment Securities by Length of Time that Individual Securities in Each Category in Continuous Loss Position) (Details) $ in Thousands	Dec. 31, 2023 USD ($) security	Dec. 31, 2022 USD ($) security
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions \| security	205	335
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 35,439	$ 215,593
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	74	16,957
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	488,825	457,955
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	78,848	84,273
Debt Securities, Available-for-sale, Unrealized Loss Position	524,264	673,548
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ 78,922	$ 101,230
Obligations of states and political subdivisions
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions \| security	6	83
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 2,345	$ 42,276
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	6	463
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	1,437	0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	38	0
Debt Securities, Available-for-sale, Unrealized Loss Position	3,782	42,276
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ 44	$ 463
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions \| security	145	175
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 13,474	$ 118,290
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	23	11,521
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	407,200	381,355
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	65,955	73,436
Debt Securities, Available-for-sale, Unrealized Loss Position	420,674	499,645
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ 65,978	$ 84,957
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions \| security	43	64
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 19,620	$ 47,340
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	45	4,589
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	62,869	62,007
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	9,492	8,824
Debt Securities, Available-for-sale, Unrealized Loss Position	82,489	109,347
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ 9,537	$ 13,413
Subordinated corporate bonds
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions \| security	11	13
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 0	$ 7,687
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	0	384
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	17,319	14,593
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	3,363	2,013
Debt Securities, Available-for-sale, Unrealized Loss Position	17,319	22,280
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	$ 3,363	$ 2,397

Investments (Amortized Cost and

Investments (Amortized Cost and Estimated Fair Values of Debt Securities by Contractual Maturity) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Available-for-sale, Amortized Cost
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, Year One	$ 1,000
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year One Through Five	10,835
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10	16,276
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 10	0
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Fair Value	24,706
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Amortized Cost	28,111
Debt Securities, Available-for-sale, Maturity, without Single Maturity Date, Fair Value	601,102
Amortized Cost	702,937	$ 796,960
Available-for-sale, Fair Value
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One	1,000
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five	9,997
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10	13,709
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 10	0
Total	625,808	$ 695,875
Debt Securities, Available-for-sale, Maturity, without Single Maturity Date, Amortized Cost	$ 674,826

Investments (Summary of Amort_2

Investments (Summary of Amortized Cost and Fair Value of Held to Maturity Securities) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Schedule of Investments [Line Items]
HTM debt securities	$ 544,931	$ 546,583
Unrealized Gains	3,134	763
Unrealized Losses	(37,470)	(41,153)
Debt Securities, Held-to-maturity, Fair Value	510,595	506,193
Obligations of U.S. government-sponsored enterprises
Schedule of Investments [Line Items]
HTM debt securities	7,593	7,457
Unrealized Gains	0	0
Unrealized Losses	(528)	(777)
Debt Securities, Held-to-maturity, Fair Value	7,065	6,680
Amortized cost, unamortized unrealized loss	992	1,100
Obligations of states and political subdivisions
Schedule of Investments [Line Items]
HTM debt securities	56,262	55,978
Unrealized Gains	1,242	431
Unrealized Losses	(731)	(1,610)
Debt Securities, Held-to-maturity, Fair Value	56,773	54,799
Amortized cost, unamortized unrealized loss	5,600	6,100
Mortgage-backed securities issued or guaranteed by U.S. government-sponsored enterprises
Schedule of Investments [Line Items]
HTM debt securities	304,850	317,406
Unrealized Gains	0	0
Unrealized Losses	(21,623)	(24,766)
Debt Securities, Held-to-maturity, Fair Value	283,227	292,640
Amortized cost, unamortized unrealized loss	34,600	38,400
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises
Schedule of Investments [Line Items]
HTM debt securities	157,118	145,069
Unrealized Gains	515	0
Unrealized Losses	(13,497)	(13,724)
Debt Securities, Held-to-maturity, Fair Value	144,136	131,345
Amortized cost, unamortized unrealized loss	18,400	20,700
Subordinated corporate bonds
Schedule of Investments [Line Items]
HTM debt securities	19,108	20,673
Unrealized Gains	1,377	332
Unrealized Losses	(1,091)	(276)
Debt Securities, Held-to-maturity, Fair Value	19,394	20,729
Amortized cost, unamortized unrealized loss	$ 85	$ 117

Investments (Amortized Cost a_2

Investments (Amortized Cost and Fair Values of HTM Securities by Contractual Maturity (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Held-to-maturity, Amortized Cost
Due in one year or less	$ 502
Due after one year through five years	1,790
Due after five years through ten years	35,975
Due after ten years	44,696
Held-to-Maturity, Amortized Cost	82,963
Mortgage-related securities	461,968
HTM debt securities	544,931	$ 546,583
Held-to-maturity, Fair Value
Due in one year or less	498
Due after one year through five years	1,818
Due after five years through ten years	35,840
Due after ten years	45,076
Debt Securities, Held-to-Maturity, Maturity, Allocated and Single Maturity Date, Fair Value	83,232
Mortgage-related securities	427,363
Debt Securities, Held-to-maturity, Fair Value	$ 510,595	$ 506,193

Investments (Schedule of Amorti

Investments (Schedule of Amortized Cost and Fair Value of Other Investments) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Investments, Debt and Equity Securities [Abstract]
FHLBB (carried at cost)	$ 10,020	$ 7,339
FRB (carried at cost)	5,374	5,374
Other Investments, Amortized Cost	$ 15,394	$ 12,713

Loans and Allowance for Credi_3

Loans and Allowance for Credit Losses on Loans (Additional Information) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and Leases Receivable, Related Parties, Description	At December 31, 2023 and 2022, outstanding loans to certain officers, directors and their associated companies were less than 5% of the Company's shareholders' equity.	At December 31, 2023 and 2022, outstanding loans to certain officers, directors and their associated companies were less than 5% of the Company's shareholders' equity.
Number of Portfolio Concentration Industries	0
Foregone interest	$ 131	$ 145	$ 256
Loans and Leases Receivable, Deferred Income	7,113	6,890
Financing Receivable, Allowance for Credit Losses	36,935	36,922	33,256
Loans and Leases Receivable, Excluded Accrued Interest from Amortized Cost	12,700	10,300
Non-Accrual Loans	5,448	2,991
Residential Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable in Process of Foreclosure	1,100	481
Financing Receivable, Allowance for Credit Losses	10,254	9,089	6,133
Gross loans	1,763,378	1,700,266
Non-Accrual Loans	2,541	1,733
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Financing Receivable, Allowance for Credit Losses	724	504	$ 79
Gross loans	18,168	20,591
Non-Accrual Loans	$ 37	$ 0
Total Loan Portfolio [Member] \| Loan Concentration Risk [Member] \| Non-Residential Building Operators Industry Sector [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration Risk, Percentage	13%	11%
Commercial real estate \| Loan Concentration Risk [Member] \| Non-Residential Building Operators Industry Sector [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Concentration Risk, Percentage	33%	28%
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	$ 403,901	$ 430,131
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	$ 54,911	$ 70,162

Loans and Allowance for Credi_4

Loans and Allowance for Credit Losses on Loans (Composition of Loan Portfolio, Excluding Residential Loans Held for Sale) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 4,098,094	$ 4,010,353
Residential Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	1,763,378	1,700,266
Loans	1,763,378	1,700,266
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	403,901	430,131
Loans	403,901	430,131
Home equity
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	240,341	234,428
Loans	240,341	234,428
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	18,168	20,591
Loans	18,168	20,591
Commercial Loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	2,076,207	2,055,068
Retail Loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	2,021,887	1,955,285
Commercial real estate, non owner-occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	1,370,446	1,292,443
Loans	1,370,446	1,292,443
Commercial real estate, owner-occupied
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross loans	301,860	332,494
Loans	$ 301,860	$ 332,494

Loans and Allowance for Credi_5

Loans and Allowance for Credit Losses on Loans (Schedule of FV mark amortization) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Receivables [Abstract]
Net Unamortized Fair Value Mark Discount on Loans	$ (168)	$ (313)
Loans and Leases Receivable, Deferred Income	7,113	6,890
Unamortized Loan Commitment and Origination Fees and Unamortized Discounts or Premiums	$ 6,945	$ 6,577

Loans and Allowance for Credi_6

Loans and Allowance for Credit Losses on Loans (Activity in Allowance for Credit Losses on Loans by Portfolio Segment) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Financing Receivable, Allowance for Credit Loss, Beginning Balance	$ 36,922	$ 33,256
Loans charged-off	(1,727)	(1,242)
Recoveries	566	478
Provision (credit)	1,174	4,430
Financing Receivable, Allowance for Credit Loss, Ending Balance	36,935	36,922
Commercial real estate, non owner-occupied
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Financing Receivable, Allowance for Credit Loss, Beginning Balance	17,296	18,834
Loans charged-off	0	0
Recoveries	19	3
Provision (credit)	(734)	(1,541)
Financing Receivable, Allowance for Credit Loss, Ending Balance	16,581	17,296
Commercial real estate, owner-occupied
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Financing Receivable, Allowance for Credit Loss, Beginning Balance	2,362	2,539
Loans charged-off	(58)	0
Recoveries	0	2
Provision (credit)	(14)	(179)
Financing Receivable, Allowance for Credit Loss, Ending Balance	2,290	2,362
Commercial
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Financing Receivable, Allowance for Credit Loss, Beginning Balance	5,446	4,202
Loans charged-off	(1,560)	(1,042)
Recoveries	471	379
Provision (credit)	512	1,907
Financing Receivable, Allowance for Credit Loss, Ending Balance	4,869	5,446
Residential Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Financing Receivable, Allowance for Credit Loss, Beginning Balance	9,089	6,133
Loans charged-off	(18)	(66)
Recoveries	44	0
Provision (credit)	1,139	3,022
Financing Receivable, Allowance for Credit Loss, Ending Balance	10,254	9,089
Home equity
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Financing Receivable, Allowance for Credit Loss, Beginning Balance	2,225	1,469
Loans charged-off	0	0
Recoveries	1	87
Provision (credit)	(9)	669
Financing Receivable, Allowance for Credit Loss, Ending Balance	2,217	2,225
Consumer
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Financing Receivable, Allowance for Credit Loss, Beginning Balance	504	79
Loans charged-off	(91)	(134)
Recoveries	31	7
Provision (credit)	280	552
Financing Receivable, Allowance for Credit Loss, Ending Balance	$ 724	$ 504

Loans and Allowance for Credi_7

Loans and Allowance for Credit Losses on Loans (Activity in Allowance for Loan Losses by Portfolio Segment) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Financing Receivable, Allowance for Credit Loss, Beginning Balance	$ 36,922	$ 33,256
Loans charged-off	(1,727)	(1,242)
Recoveries	566	478
Provision (credit)	1,174	4,430
Financing Receivable, Allowance for Credit Loss, Ending Balance	36,935	36,922
Loans	4,098,094	4,010,353
Commercial
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Financing Receivable, Allowance for Credit Loss, Beginning Balance	5,446	4,202
Loans charged-off	(1,560)	(1,042)
Recoveries	471	379
Provision (credit)	512	1,907
Financing Receivable, Allowance for Credit Loss, Ending Balance	4,869	5,446
Loans	403,901	430,131
Residential Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Financing Receivable, Allowance for Credit Loss, Beginning Balance	9,089	6,133
Loans charged-off	(18)	(66)
Recoveries	44	0
Provision (credit)	1,139	3,022
Financing Receivable, Allowance for Credit Loss, Ending Balance	10,254	9,089
Loans	1,763,378	1,700,266
Home equity
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Financing Receivable, Allowance for Credit Loss, Beginning Balance	2,225	1,469
Loans charged-off	0	0
Recoveries	1	87
Provision (credit)	(9)	669
Financing Receivable, Allowance for Credit Loss, Ending Balance	2,217	2,225
Loans	240,341	234,428
Consumer
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Financing Receivable, Allowance for Credit Loss, Beginning Balance	504	79
Loans charged-off	(91)	(134)
Recoveries	31	7
Provision (credit)	280	552
Financing Receivable, Allowance for Credit Loss, Ending Balance	724	504
Loans	$ 18,168	$ 20,591

Loans and Allowance for Credi_8

Loans and Allowance for Credit Losses on Loans (Schedule of Provision for Credit Losses) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Receivables [Abstract]
Provision (credit) for credit losses	$ 2,100	$ 4,500	$ (3,190)

Loans and Allowance for Credi_9

Loans and Allowance for Credit Losses on Loans (Credit Quality and Origination by Portfolio Segment Analysis) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Allowance for Credit Losses, Write-downs	$ 1,727	$ 1,242
Commercial
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	42,164	73,686
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	54,911	70,162
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	56,550	32,498
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	25,302	33,848
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	26,575	23,187
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	36,897	27,958
Financing Receivable, Revolving	122,194	136,403
Financing Receivable, Revolving, Converted to Term Loan	39,308	32,389
Gross loans	403,901	430,131
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff	0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff	68
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff	137
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff	31
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff	20
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff	1,075
Financing Receivable, Revolving, Writeoff	82
Financing Receivable, Revolving, Converted to Term Loan, Writeoff	147
Financing Receivable, Allowance for Credit Losses, Write-downs	1,560
Commercial \| Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	41,871	73,537
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	54,323	70,110
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	56,102	32,272
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	24,338	33,491
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	25,620	22,271
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	35,442	26,245
Financing Receivable, Revolving	119,119	135,157
Financing Receivable, Revolving, Converted to Term Loan	36,895	30,191
Gross loans	393,710	423,274
Commercial \| Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	45	0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0	0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	152	93
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	195	141
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0	70
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	101	189
Financing Receivable, Revolving	660	1,196
Financing Receivable, Revolving, Converted to Term Loan	5	12
Gross loans	1,158	1,701
Commercial \| Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	248	149
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	588	52
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	296	133
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	769	216
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	955	846
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	1,354	1,524
Financing Receivable, Revolving	2,415	50
Financing Receivable, Revolving, Converted to Term Loan	2,408	2,186
Gross loans	9,033	5,156
Commercial \| Doubtful
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0	0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0	0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0	0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0	0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	0	0
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving, Converted to Term Loan	0	0
Gross loans	0	0
Residential Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	160,315	533,035
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	539,835	579,216
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	541,943	244,691
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	220,943	79,492
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	71,006	50,377
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	228,580	213,115
Financing Receivable, Revolving	370	340
Financing Receivable, Revolving, Converted to Term Loan	386	0
Gross loans	1,763,378	1,700,266
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff	0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff	0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff	0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff	0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff	18
Financing Receivable, Revolving, Writeoff	0
Financing Receivable, Revolving, Converted to Term Loan, Writeoff	0
Financing Receivable, Allowance for Credit Losses, Write-downs	18
Residential Portfolio Segment [Member] \| Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	160,315	533,035
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	539,835	579,216
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	540,980	244,691
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	220,943	79,492
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	70,917	50,214
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	226,126	210,262
Financing Receivable, Revolving	370	340
Financing Receivable, Revolving, Converted to Term Loan	386	0
Gross loans	1,759,872	1,697,250
Residential Portfolio Segment [Member] \| Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0	0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0	0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0	0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0	0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	0	23
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving, Converted to Term Loan	0	0
Gross loans	0	23
Residential Portfolio Segment [Member] \| Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0	0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0	0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	963	0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0	0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	89	163
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	2,454	2,830
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving, Converted to Term Loan	0	0
Gross loans	3,506	2,993
Residential Portfolio Segment [Member] \| Doubtful
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0	0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0	0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0	0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0	0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	0	0
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving, Converted to Term Loan	0	0
Gross loans	0	0
Home equity
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	15,976	26,712
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	23,104	693
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	547	341
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	324	4,842
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	4,124	7,730
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	12,697	8,578
Financing Receivable, Revolving	169,943	173,715
Financing Receivable, Revolving, Converted to Term Loan	13,626	11,817
Gross loans	240,341	234,428
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff	0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff	0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff	0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff	0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff	0
Financing Receivable, Revolving, Writeoff	0
Financing Receivable, Revolving, Converted to Term Loan, Writeoff	0
Financing Receivable, Allowance for Credit Losses, Write-downs	0
Home equity \| Performing Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	15,976	26,712
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	23,104	693
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	547	341
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	324	4,842
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	4,124	7,730
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	12,686	8,551
Financing Receivable, Revolving	169,416	173,338
Financing Receivable, Revolving, Converted to Term Loan	13,405	11,735
Gross loans	239,582	233,942
Home equity \| Nonperforming Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0	0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0	0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0	0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0	0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	11	27
Financing Receivable, Revolving	527	377
Financing Receivable, Revolving, Converted to Term Loan	221	82
Gross loans	759	486
Consumer
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	5,525	8,009
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	4,908	3,816
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	2,073	1,702
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	815	1,188
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	345	345
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	2,311	2,462
Financing Receivable, Revolving	2,191	3,069
Financing Receivable, Revolving, Converted to Term Loan	0	0
Gross loans	18,168	20,591
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff	2
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff	19
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff	31
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff	14
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff	8
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff	4
Financing Receivable, Revolving, Writeoff	13
Financing Receivable, Revolving, Converted to Term Loan, Writeoff	0
Financing Receivable, Allowance for Credit Losses, Write-downs	91
Consumer \| Performing Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	5,525	8,009
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	4,908	3,816
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	2,068	1,702
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	815	1,188
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	345	345
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	2,279	2,462
Financing Receivable, Revolving	2,191	3,069
Financing Receivable, Revolving, Converted to Term Loan	0	0
Gross loans	18,131	20,591
Consumer \| Nonperforming Financial Instruments [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0	0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0	0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	5	0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0	0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	32	0
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving, Converted to Term Loan	0	0
Gross loans	37	0
Commercial real estate, non owner-occupied
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	111,756	339,171
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	365,227	288,043
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	296,152	162,291
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	149,344	125,491
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	116,924	116,696
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	331,043	260,751
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving, Converted to Term Loan	0	0
Gross loans	1,370,446	1,292,443
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff	0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff	0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff	0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff	0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff	0
Financing Receivable, Revolving, Writeoff	0
Financing Receivable, Revolving, Converted to Term Loan, Writeoff	0
Financing Receivable, Allowance for Credit Losses, Write-downs	0
Commercial real estate, non owner-occupied \| Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	103,012	339,171
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	364,777	287,749
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	296,152	160,621
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	146,707	125,029
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	116,777	108,823
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	320,101	242,024
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving, Converted to Term Loan	0	0
Gross loans	1,347,526	1,263,417
Commercial real estate, non owner-occupied \| Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	7,997	0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0	167
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0	364
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	350	259
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	33	75
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	3,597	321
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving, Converted to Term Loan	0	0
Gross loans	11,977	1,186
Commercial real estate, non owner-occupied \| Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	747	0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	450	127
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0	1,306
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	2,287	203
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	114	7,798
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	7,345	18,406
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving, Converted to Term Loan	0	0
Gross loans	10,943	27,840
Commercial real estate, non owner-occupied \| Doubtful
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0	0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0	0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0	0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0	0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	0	0
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving, Converted to Term Loan	0	0
Gross loans	0	0
Commercial real estate, owner-occupied
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	26,902	60,144
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	53,952	82,834
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	79,250	28,378
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	24,608	43,373
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	18,728	42,820
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	98,420	74,945
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving, Converted to Term Loan	0	0
Gross loans	301,860	332,494
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff	0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff	0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff	0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff	0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff	58
Financing Receivable, Revolving, Writeoff	0
Financing Receivable, Revolving, Converted to Term Loan, Writeoff	0
Financing Receivable, Allowance for Credit Losses, Write-downs	58
Commercial real estate, owner-occupied \| Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	26,902	60,127
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	53,550	80,781
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	76,575	28,378
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	24,608	23,381
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	18,728	39,554
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	89,133	70,568
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving, Converted to Term Loan	0	0
Gross loans	289,496	302,789
Commercial real estate, owner-occupied \| Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0	0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0	2,053
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	2,355	0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0	19,992
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	141	411
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving, Converted to Term Loan	0	0
Gross loans	2,496	22,456
Commercial real estate, owner-occupied \| Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0	17
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	402	0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	320	0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0	0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0	3,266
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	9,146	3,966
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving, Converted to Term Loan	0	0
Gross loans	9,868	7,249
Commercial real estate, owner-occupied \| Doubtful
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable, Year One, Originated, Current Fiscal Year	0	0
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year	0	0
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year	0	0
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year	0	0
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year	0	0
Financing Receivable, Originated, More than Five Years before Current Fiscal Year	0	0
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving, Converted to Term Loan	0	0
Gross loans	$ 0	$ 0

Loans and Allowance for Cred_10

Loans and Allowance for Credit Losses on Loans (Credit Risk Exposure Indicators by Portfolio Segment) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Financing Receivable, Recorded Investment [Line Items]
Loans	$ 4,098,094	$ 4,010,353
Residential real estate
Financing Receivable, Recorded Investment [Line Items]
Loans	1,763,378	1,700,266
Commercial
Financing Receivable, Recorded Investment [Line Items]
Loans	403,901	430,131
Home equity
Financing Receivable, Recorded Investment [Line Items]
Loans	240,341	234,428
Consumer
Financing Receivable, Recorded Investment [Line Items]
Loans	$ 18,168	$ 20,591

Loans and Allowance for Cred_11

Loans and Allowance for Credit Losses on Loans (Loan Aging Analysis by Portfolio Segment (Including Loans Past Due Over Ninety Days and Non Accrual Loans) and Summary of Non Accrual Loans) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and Leases Receivable, Net of Deferred Income, Total	$ 4,098,094	$ 4,010,353
Loans 90 Days Past Due and Accruing	0	0
Residential Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and Leases Receivable, Net of Deferred Income, Total	1,763,378	1,700,266
Loans 90 Days Past Due and Accruing	0	0
Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and Leases Receivable, Net of Deferred Income, Total	403,901	430,131
Loans 90 Days Past Due and Accruing	0	0
Home equity
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and Leases Receivable, Net of Deferred Income, Total	240,341	234,428
Loans 90 Days Past Due and Accruing	0	0
Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and Leases Receivable, Net of Deferred Income, Total	18,168	20,591
Loans 90 Days Past Due and Accruing	0	0
Commercial real estate, non owner-occupied
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and Leases Receivable, Net of Deferred Income, Total	1,370,446	1,292,443
Loans 90 Days Past Due and Accruing	0	0
Commercial real estate, owner-occupied
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and Leases Receivable, Net of Deferred Income, Total	301,860	332,494
Loans 90 Days Past Due and Accruing	0	0
30 – 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	3,775	2,221
30 – 59 Days Past Due \| Residential Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	1,317	852
30 – 59 Days Past Due \| Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	1,153	667
30 – 59 Days Past Due \| Home equity
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	521	357
30 – 59 Days Past Due \| Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	85	23
30 – 59 Days Past Due \| Commercial real estate, non owner-occupied
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	44	267
30 – 59 Days Past Due \| Commercial real estate, owner-occupied
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	655	55
60 – 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	2,021	331
60 – 89 Days Past Due \| Residential Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	322	186
60 – 89 Days Past Due \| Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	1,199	134
60 – 89 Days Past Due \| Home equity
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	451	0
60 – 89 Days Past Due \| Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	8	11
60 – 89 Days Past Due \| Commercial real estate, non owner-occupied
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	41	0
60 – 89 Days Past Due \| Commercial real estate, owner-occupied
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	0	0
90 Days or Greater Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	2,739	1,393
90 Days or Greater Past Due \| Residential Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	1,094	524
90 Days or Greater Past Due \| Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	1,155	640
90 Days or Greater Past Due \| Home equity
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	301	171
90 Days or Greater Past Due \| Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	5	0
90 Days or Greater Past Due \| Commercial real estate, non owner-occupied
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	184	11
90 Days or Greater Past Due \| Commercial real estate, owner-occupied
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	0	47
Total Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	8,535	3,945
Total Past Due \| Residential Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	2,733	1,562
Total Past Due \| Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	3,507	1,441
Total Past Due \| Home equity
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	1,273	528
Total Past Due \| Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	98	34
Total Past Due \| Commercial real estate, non owner-occupied
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	269	278
Total Past Due \| Commercial real estate, owner-occupied
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	655	102
Current
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	4,089,559	4,006,408
Current \| Residential Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	1,760,645	1,698,704
Current \| Commercial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	400,394	428,690
Current \| Home equity
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	239,068	233,900
Current \| Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	18,070	20,557
Current \| Commercial real estate, non owner-occupied
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	1,370,177	1,292,165
Current \| Commercial real estate, owner-occupied
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, before Allowance for Credit Loss	$ 301,205	$ 332,392

Loans and Allowance for Cred_12

Loans and Allowance for Credit Losses on Loans (Financing Receivable, Nonaccrual) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Financing Receivable, Nonaccrual [Line Items]
Non-Accrual Loans With an Allowance	$ 5,448	$ 2,150
Non-Accrual Loans Without an Allowance	0	841
Total Non-Accrual Loans	5,448	2,991
Non-Accrual Loans	5,448	2,991
Total Collateral -Dependent Non-Accrual Loans
Financing Receivable, Nonaccrual [Line Items]
Total Non-Accrual Loans	5,165	387
Non-Accrual Loans	5,165	387
Real Estate
Financing Receivable, Nonaccrual [Line Items]
Total Non-Accrual Loans	5,165	387
Non-Accrual Loans	5,165	387
Commercial real estate, non owner-occupied
Financing Receivable, Nonaccrual [Line Items]
Non-Accrual Loans With an Allowance	261	0
Non-Accrual Loans Without an Allowance	0	11
Total Non-Accrual Loans	261	11
Non-Accrual Loans	261	11
Commercial real estate, owner-occupied
Financing Receivable, Nonaccrual [Line Items]
Non-Accrual Loans With an Allowance	125	0
Non-Accrual Loans Without an Allowance	0	46
Total Non-Accrual Loans	125	46
Non-Accrual Loans	125	46
Commercial
Financing Receivable, Nonaccrual [Line Items]
Non-Accrual Loans With an Allowance	1,725	415
Non-Accrual Loans Without an Allowance	0	300
Total Non-Accrual Loans	1,725	715
Non-Accrual Loans	1,725	715
Residential Portfolio Segment [Member]
Financing Receivable, Nonaccrual [Line Items]
Non-Accrual Loans With an Allowance	2,541	1,314
Non-Accrual Loans Without an Allowance	0	419
Total Non-Accrual Loans	2,541	1,733
Non-Accrual Loans	2,541	1,733
Residential Portfolio Segment [Member] \| Total Collateral -Dependent Non-Accrual Loans
Financing Receivable, Nonaccrual [Line Items]
Total Non-Accrual Loans	671	0
Non-Accrual Loans	671	0
Residential Portfolio Segment [Member] \| Real Estate
Financing Receivable, Nonaccrual [Line Items]
Total Non-Accrual Loans	671	0
Non-Accrual Loans	671	0
Home equity
Financing Receivable, Nonaccrual [Line Items]
Non-Accrual Loans With an Allowance	759	421
Non-Accrual Loans Without an Allowance	0	65
Total Non-Accrual Loans	759	486
Non-Accrual Loans	759	486
Home equity \| Total Collateral -Dependent Non-Accrual Loans
Financing Receivable, Nonaccrual [Line Items]
Total Non-Accrual Loans	0	387
Non-Accrual Loans	0	387
Home equity \| Real Estate
Financing Receivable, Nonaccrual [Line Items]
Total Non-Accrual Loans	0	387
Non-Accrual Loans	0	387
Consumer
Financing Receivable, Nonaccrual [Line Items]
Non-Accrual Loans With an Allowance	37	0
Non-Accrual Loans Without an Allowance	0	0
Total Non-Accrual Loans	37	0
Non-Accrual Loans	$ 37	$ 0

Loans and Allowance for Cred_13

Loans and Allowance for Credit Losses on Loans - TDR (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($)
Financing Receivable, Modifications [Line Items]
Total % of Portfolio	0.10%
Principal Forgiveness
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modified in Period, Amount	$ 0
Payment Deferral
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modified in Period, Amount	0
Extended Maturity
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modified in Period, Amount	4,494
Interest Rate Concession
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modified in Period, Amount	0
Extended Maturity and Principal Forgiveness
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modified in Period, Amount	0
Extended Maturity and Interest Rate Reduction
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modified in Period, Amount	$ 0
Commercial real estate \| Commercial real estate, non owner-occupied
Financing Receivable, Modifications [Line Items]
Total % of Portfolio	0.30%
Commercial real estate \| Commercial real estate, non owner-occupied \| Principal Forgiveness
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modified in Period, Amount	$ 0
Commercial real estate \| Commercial real estate, non owner-occupied \| Payment Deferral
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modified in Period, Amount	0
Commercial real estate \| Commercial real estate, non owner-occupied \| Extended Maturity
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modified in Period, Amount	$ 4,494
Weighted Average Term Extension (Years)	1 year 3 months 18 days
Commercial real estate \| Commercial real estate, non owner-occupied \| Interest Rate Concession
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modified in Period, Amount	$ 0
Weighted Average Interest Rate Reduction	0%
Commercial real estate \| Commercial real estate, non owner-occupied \| Extended Maturity and Principal Forgiveness
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modified in Period, Amount	$ 0
Commercial real estate \| Commercial real estate, non owner-occupied \| Extended Maturity and Interest Rate Reduction
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modified in Period, Amount	$ 0

Goodwill and Core Deposit Int_3

Goodwill and Core Deposit Intangible Assets Goodwill and Core Deposit Intangible Assets (Additional Information) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization of core deposit intangible assets	$ 592	$ 625	$ 655

Goodwill and Core Deposit Int_4

Goodwill and Core Deposit Intangible Assets Goodwill and Core Deposit Intangible Assets (Schedule of Finite-Lived Intangible Assets) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Net Carrying Amount
Total	$ 971
Core Deposit Intangible
Gross Carrying Amount
Total	6,451	$ 6,451
Accumulated Amortization
Total	(5,480)	(4,888)
Net Carrying Amount
Total	$ 971	$ 1,563

Goodwill and Core Deposit Int_5

Goodwill and Core Deposit Intangible Assets Goodwill and Core Deposit Intangible Assets (Schedule of Expected Future Amortization of Intangible Assets) (Details) $ in Thousands	Dec. 31, 2023 USD ($)
Other Intangible Assets [Abstract]
2024	$ 556
2025	415
Total	$ 971

Premises and Equipment Premises

Premises and Equipment Premises and Equipment (Additional Information) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	$ 40,957,000	$ 39,959,000
Gain (loss) on disposition of property plant equipment	0	$ 204,000	$ 0
Software and Software Development Costs [Member]
Property, Plant and Equipment [Line Items]
Capitalized Computer Software, Gross	2,800,000
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	$ 2,200,000

Premises and Equipment (Equipme

Premises and Equipment (Equipment) (Details) - USD ($)	12 Months Ended
Premises and Equipment (Equipment) (Details) - USD ($)	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 76,006,000	$ 75,981,000
Accumulated depreciation and amortization	(40,957,000)	(39,959,000)
Premises and equipment, net	35,049,000	36,022,000
Gain (loss) on disposition of property plant equipment	0	204,000	$ 0
Buildings and leasehold improvements
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	47,566,000	46,670,000
Furniture, fixtures and equipment
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	19,120,000	20,036,000
Land and land improvements
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 9,320,000	$ 9,275,000

Premises and Equipment - Deprec

Premises and Equipment - Depreciation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Depreciation, Depletion and Amortization, Nonproduction	$ 3,371	$ 3,490	$ 3,708
Furniture and Equipment
Property, Plant and Equipment [Line Items]
Depreciation	1,514	1,796	1,994
Premises
Property, Plant and Equipment [Line Items]
Depreciation	1,618	1,560	1,623
Software
Property, Plant and Equipment [Line Items]
Depreciation	$ 239	$ 134	$ 91

Leases Leases (Additional Infor

Leases Leases (Additional Information) (Details)	12 Months Ended
Leases Leases (Additional Information) (Details)	Dec. 31, 2023 employee
Leases [Abstract]
Lessor, Operating Lease, Number of Landlords	2
Lessor, Operating Lease, Renewal Term	5 years
Lessor, Operating Lease, Extension Term	5 years

Leases Leases (Components of Le

Leases Leases (Components of Lease Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Leases [Abstract]
Operating lease assets	$ 11,497	$ 12,324
Finance lease assets	4,252	4,485
Total leases assets	15,749	16,809
Operating lease liabilities	9,978	10,718
Finance lease liabilities	4,449	4,616
Lease liabilities	14,427	15,334
Operating lease cost	1,531	1,488	$ 1,474
Amortization of right-of-use assets	233	233	233
Interest on lease liabilities	147	150	154
Total finance lease cost	380	383	387
Total lease cost	$ 1,911	$ 1,871	$ 1,861
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Other assets	Other assets
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Other assets	Other assets
Operating Lease, Liability, Statement of Financial Position [Extensible List]	Other Liabilities	Other Liabilities
Finance Lease, Liability, Statement of Financial Position [Extensible List]	Other Liabilities	Other Liabilities

Leases Leases (Supplemental Cas

Leases Leases (Supplemental Cash Flow and Balance Sheet Information) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 1,387,000	$ 1,391,000	$ 1,355,000
Operating cash flows from finance leases	144,000	149,000	154,000
Financing cash flows from finance leases	168,000	160,000	152,000
Right-of-use assets obtained in exchange for new lease obligations:
Operating leases	165,000	764,000	106,000
Finance leases	$ 0	$ 0	$ 0
Weighted average remaining lease term (years)
Operating leases	13 years 2 months 12 days	13 years 10 months 24 days
Finance leases	25 years 3 months 18 days	25 years 9 months 18 days
Weighted average discount rate:
Operating Leases	3.41%	3.44%
Finance leases	3.45%	3.44%

Leases Leases (Maturities of Op

Leases Leases (Maturities of Operating and Finance Lease Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Operating leases
2024	$ 1,370
2025	1,180
2026	1,104
2027	1,020
2028	771
Thereafter	6,984
Total minimum lease payments	12,429
Less: amount representing interest	2,451
Present value of net minimum lease payments	9,978	$ 10,718
Finance leases
2024	314
2025	317
2026	236
2027	211
2028	214
Thereafter	5,518
Total minimum lease payments	6,810
Less: amount representing interest	2,361
Present value of net minimum lease payments	$ 4,449	$ 4,616

Mortgage Banking (Additional In

Mortgage Banking (Additional Information) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Servicing Assets at Fair Value [Line Items]
Gain (Loss) on Sale of Mortgage Loans	$ 1,649	$ 3,403	$ 13,265
Receivables Held-for-sale, Amount	10,200	5,300
Unrealized Gain (Loss) on Derivatives	168	(62)
Unrealized gain (loss) on loans held for sale	231	(91)	(1,000)
Fees and Commissions, Mortgage Banking and Servicing	2,921	4,221	13,704
Servicing Asset at Amortized Cost	$ 2,274	$ 2,458	2,470	$ 2,196
Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value, Prepayment Speed	7.50%	7.50%
Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value, Discount Rate	10.20%	9.60%
Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of 10 Percent Adverse Change in Prepayment Speed	$ 118
Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of 20 Percent Adverse Change in Prepayment Speed	229
Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of 10 Percent Adverse Change in Discount Rate	163
Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of 20 Percent Adverse Change in Discount Rate	314
Fixed Rate Residential Mortgage [Member]
Servicing Assets at Fair Value [Line Items]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate, Cost of Mortgage Sold	184,800	$ 152,700	471,500
Forward delivery commitments
Servicing Assets at Fair Value [Line Items]
Unrealized Gain (Loss) on Derivatives	(195)	140	(35)
Servicing Assets
Servicing Assets at Fair Value [Line Items]
Mortgage loans serviced during period, value	365,900	389,400
Fees and Commissions, Mortgage Banking and Servicing	$ 1,200	$ 1,200	$ 1,300

Mortgage Banking (Schedule of M

Mortgage Banking (Schedule of Mortgage Servicing) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Servicing Asset at Amortized Cost, Balance [Roll Forward]
Balance at beginning of year	$ 2,458	$ 2,470	$ 2,196
Capitalized servicing right fees upon sale	202	370	790
Amortization charged against mortgage servicing fee income	(386)	(382)	(515)
Valuation adjustment	0	0	1
Balance at end of year	2,274	2,458	2,470
Valuation Allowance:
Balance at beginning of year	0	(1)	(27)
Decrease in impairment reserve	0	1	26
Balance at end of year	0	0	(1)
Fair value, beginning of year	4,412	3,310	2,447
Fair value, end of year	$ 4,124	$ 4,412	$ 3,310

Deposits (Details)

Deposits (Details) - USD ($)	Dec. 31, 2023	Dec. 31, 2022
Deposits [Abstract]
1 year or less	$ 564,670,000	$ 206,621,000
Over 1 year to 2 years	24,970,000	59,571,000
Over 2 years to 3 years	10,382,000	18,047,000
Over 3 years to 4 years	4,565,000	9,066,000
Over 4 years to 5 years	3,144,000	5,211,000
Over 5 years	1,772,000	1,935,000
Total certificates of deposit	609,503,000	300,451,000
FDIC Insurance Limit	250,000
Time Deposits, $250,000 or more	170,200,000	84,500,000
Deposit liabilities, collateral issued	166,000,000	378,100,000
Deposit liabilities, reclassified	938,000	723,000
Related Party Deposit Liabilities	$ 60,400,000	$ 62,700,000

Borrowings (Additional Informat

Borrowings (Additional Information) (Details) - USD ($)	1 Months Ended	12 Months Ended
Borrowings (Additional Information) (Details) - USD ($)	Apr. 30, 2006	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2006	Jan. 31, 2024	May 31, 2023	Dec. 31, 2008
Short-term Debt [Line Items]
Federal Home Loan Bank Advances		$ 149,950,000	$ 68,725,000
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged		1,900,000,000	1,800,000,000
Line of credit, maximum borrowing capacity		50,000,000
Securities Sold under Agreements to Repurchase		200,657,000	196,451,000
Interest on subordinated debentures		2,150,000	2,140,000	$ 2,523,000
Long-term Line of Credit		0
Subordinated Debt		44,331,000	44,331,000
Federal Home Loan Bank Advances [Member]
Short-term Debt [Line Items]
Line of credit, maximum borrowing capacity		9,900,000	9,900,000
Securities Sold under Agreements to Repurchase		125,000,000
Long-term Line of Credit		0
Federal Home Loan Bank Advances [Member] \| Asset Pledged as Collateral \| Securities Investment
Short-term Debt [Line Items]
Financial Instruments, Owned, at Fair Value		4,300,000	$ 22,000
PNC [Member]
Short-term Debt [Line Items]
Line of credit, maximum borrowing capacity		35,000,000
Long-term Line of Credit		0
Federal Reserve Bank Advances [Member]
Short-term Debt [Line Items]
Line of credit, maximum borrowing capacity		39,400,000
Long-term Line of Credit		0
Federal Reserve Bank Advances [Member] \| Securities Investment
Short-term Debt [Line Items]
Financial Instruments, Owned, at Fair Value		$ 47,500,000
Junior Subordinated Debt
Short-term Debt [Line Items]
Percentage of trust preferred securities included in Tier I Capital ratio		8%
Value Of Trust Preferred Securities Included In Tier One Capital		$ 43,000,000
Subordinated Debt		43,000,000
Debt Instrument, Face Amount								$ 43,000,000
Bank term funding program \| Asset Pledged as Collateral \| Securities Investment
Short-term Debt [Line Items]
Financial Instruments, Owned, at Fair Value		$ 160,900,000
Bank term funding program \| Short-term Debt
Short-term Debt [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		4.70%
Debt Instrument, Face Amount		$ 135,000,000					$ 135,000,000
Bank term funding program \| Short-term Debt \| Subsequent Event [Member]
Short-term Debt [Line Items]
Debt Instrument, Interest Rate, Stated Percentage						4.76%
Debt Instrument, Face Amount						$ 225,000,000
Interest rate swaps \| Federal Home Loan Bank Advances [Member]
Short-term Debt [Line Items]
Securities Sold under Agreements to Repurchase		$ 50,000,000
Subsidiary One [Member] \| Junior Subordinated Debt
Short-term Debt [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		6.99%	5.07%
Value of outstanding common shares of subsidiary owned by company	$ 1,100,000
Proceeds from issuance of trust preferred securities	$ 36,100,000
Debt interest rate, additional rate over three month LIBOR	1.40%
Long-term borrowings		$ 36,083,000	$ 36,083,000
Subsidiary One [Member] \| Junior Subordinated Debt \| Secured Overnight Financing Rate (SOFR)
Short-term Debt [Line Items]
Debt interest rate, additional rate over three month LIBOR					0.26161%
Subsidiary Two [Member] \| Junior Subordinated Debt
Short-term Debt [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		7.08%	5.50%
Value of outstanding common shares of subsidiary owned by company					$ 248,000
Trust preferred securities assumed in acquisition								$ 8,000,000
Aggregate amount of junior subordinated debt issued to subsidiary by acquired company, prior to acquisition					$ 8,200,000
Debt Instrument, Term					30 years
Long-term borrowings		$ 8,248,000	$ 8,248,000
Subsidiary Two [Member] \| Junior Subordinated Debt \| Secured Overnight Financing Rate (SOFR)
Short-term Debt [Line Items]
Debt interest rate, additional rate over three month LIBOR					0.26161%
Subsidiary Two [Member] \| Junior Subordinated Debt \| London Interbank Offered Rate (LIBOR),1
Short-term Debt [Line Items]
Debt interest rate, additional rate over three month LIBOR					1.42%

Borrowings (Summary of Short te

Borrowings (Summary of Short term and Long term Borrowings and Subordinated Debentures) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Securities Sold under Agreements to Repurchase	$ 200,657	$ 196,451
Total short-term borrowings	485,607	$ 265,176
Customer repurchase agreements(1)
Maturities of Long-term Debt and Capital Lease Obligations [Abstract]
2024	200,657
2025	0
2026	0
2027	0
2028	0
Thereafter	0
FHLBB and correspondent bank overnight borrowings(2)
Maturities of Long-term Debt and Capital Lease Obligations [Abstract]
2024	149,950
2025	0
2026	0
2027	0
2028	0
Thereafter	0
Bank term funding program
Maturities of Long-term Debt and Capital Lease Obligations [Abstract]
2024	135,000
2025	0
2026	0
2027	0
2028	0
Thereafter	$ 0
Subordinated Debt and Junior Subordinated Debt
Debt Instrument [Line Items]
Weighted Average Rate (as a percent)	4.79%	4.76%
Maturities of Long-term Debt and Capital Lease Obligations [Abstract]
2024	$ 0
2025	0
2026	0
2027	0
2028	0
Thereafter	44,331
Total long-term borrowings	44,331	$ 44,331
Short-term Debt
Debt Instrument [Line Items]
Total short-term borrowings	$ 485,607	$ 265,176
Weighted Average Rate (as a percent)	3.66%	1.98%
Maturities of Long-term Debt and Capital Lease Obligations [Abstract]
2024	$ 485,607
2025	0
2026	0
2027	0
2028	0
Thereafter	0
Short-term Debt \| Customer repurchase agreements(1)
Debt Instrument [Line Items]
Securities Sold under Agreements to Repurchase	$ 200,657	$ 196,451
Weighted Average Rate (as a percent)	1.56%	1%
Short-term Debt \| FHLBB and correspondent bank overnight borrowings(2)
Debt Instrument [Line Items]
FHLBB and correspondent bank overnight borrowings	$ 149,950	$ 68,725
Weighted Average Rate (as a percent)	5.53%	4.78%
Short-term Debt \| Bank term funding program
Debt Instrument [Line Items]
FHLBB and correspondent bank overnight borrowings	$ 135,000	$ 0
Weighted Average Rate (as a percent)	4.70%	0%
Subsidiary One [Member] \| Junior Subordinated Debt
Debt Instrument [Line Items]
Weighted Average Rate (as a percent)	4.82%	4.62%
Maturities of Long-term Debt and Capital Lease Obligations [Abstract]
2024	$ 0
2025	0
2026	0
2027	0
2028	0
Thereafter	36,083
Total long-term borrowings	$ 36,083	$ 36,083
Subsidiary Two [Member] \| Junior Subordinated Debt
Debt Instrument [Line Items]
Weighted Average Rate (as a percent)	4.65%	5.39%
Maturities of Long-term Debt and Capital Lease Obligations [Abstract]
2024	$ 0
2025	0
2026	0
2027	0
2028	0
Thereafter	8,248
Total long-term borrowings	$ 8,248	$ 8,248

Borrowings (Schedule of Advance

Borrowings (Schedule of Advances to the Federal Home Loan Bank) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Maturity Schedule Of Federal Home Loan Bank Advances [Line Items]
FHLB advances, carrying value of residential real estate and commercial loans pledged as collateral	$ 1,900,000	$ 1,800,000
Federal Home Loan Bank Advances	$ 149,950	$ 68,725
Short-term Debt
Maturity Schedule Of Federal Home Loan Bank Advances [Line Items]
Debt, Weighted Average Interest Rate	3.66%	1.98%
FHLBB Borrowing Maturing January 2023 \| Long-term Debt [Member]
Maturity Schedule Of Federal Home Loan Bank Advances [Line Items]
Debt, Weighted Average Interest Rate	5.54%	4.38%
Federal Home Loan Bank Advances	$ 99,950	$ 18,725
FHLBB Borrowing Maturing March 2023 \| Long-term Debt [Member]
Maturity Schedule Of Federal Home Loan Bank Advances [Line Items]
Debt, Weighted Average Interest Rate	5.51%	4.93%
Federal Home Loan Bank Advances	$ 50,000	$ 50,000

Borrowings (Subordinated Debent

Borrowings (Subordinated Debentures) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Subordinated Debt	$ 44,331	$ 44,331
Interest Expense, Junior Subordinated Debentures	2,150	$ 2,140	$ 2,523
Interest rate swaps
Debt Instrument [Line Items]
Notional amount of derivative	$ 43,000

Repurchase Agreements (Details)

Repurchase Agreements (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase	$ 200,657	$ 196,451
Certificates of Deposit, at Carrying Value	396	616
Retail [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase	200,657	196,451
Retail [Member] \| Obligations of states and political subdivisions
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase	0	3,018
Retail [Member] \| Mortgage-backed securities issued or guaranteed by U.S. government sponsored enterprises
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase	179,809	99,105
Retail [Member] \| Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises
Assets Sold under Agreements to Repurchase [Line Items]
Securities Sold under Agreements to Repurchase	$ 20,848	$ 94,328

Commitments and Contingencies_2

Commitments and Contingencies (Additional Information) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Legal Proceedings [Line Items]
Unconditionally cancellable commitments to extend credit	$ 712,717	$ 824,573
Loss Contingency Accrual	0	0
Off-Balance Sheet, Credit Loss, Liability	2,400	3,300
Off-Balance Sheet, Credit Loss, Liability, Credit Loss Expense (Reversal)	$ (912)	$ 70	$ 627

Commitments and Contingencies_3

Commitments and Contingencies (Summary of Contractual and Notional Amounts of Financial Instruments) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Financial Instruments [Line Items]
Contractual Amounts Of Financial Instrument	$ 712,717	$ 824,573
Commitments to Extend Credit [Member]
Financial Instruments [Line Items]
Contractual Amounts Of Financial Instrument	706,719	817,772
Standby Letters of Credit [Member]
Financial Instruments [Line Items]
Contractual Amounts Of Financial Instrument	$ 5,998	$ 6,801

Derivatives and Hedging (Additi

Derivatives and Hedging (Additional Information) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Other Commitments [Line Items]
Reclassification as a decrease to interest expense	$ 2,500
Reclassification as a decrease to interest income	1,600
Unrealized Gain (Loss) on Derivatives	168	$ (62)
Derivative Liability, Fair Value, Amount Not Offset Against Collateral	10,800	14,800
Cash Collateral for Borrowed Securities	0
Provision Breach, Settlement Obligation, Termination Value	10,800	$ 14,800
Interest rate swaps
Other Commitments [Line Items]
Derivative, Notional Amount	$ 43,000

Derivatives and Hedging (Schedu

Derivatives and Hedging (Schedule of derivative financial instruments) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Derivative Liabilities
Notional Amount	$ 258,000	$ 133,000
Hedged Asset, Fair Value Hedge	374,032	0
Hedged Asset, Fair Value Hedge, Cumulative Increase (Decrease)	$ (968)	$ 0
Hedged Asset, Statement of Financial Position [Extensible Enumeration]	Loans	Loans
Loans Receivable [Member]
Derivative Liabilities
Financial Asset, Closed Portfolio, Portfolio Layer Method, Amortized Cost	$ 806,500	$ 0
Beneficial Interest, Portfolio Layer Method, Amortized Cost	375,000	0
Hedged Asset, Fair Value Hedge	374,032	0
Hedged Asset, Fair Value Hedge, Cumulative Increase (Decrease)	(968)	0
Designated as Hedging Instrument
Derivative Assets
Fair Value	12,206	13,051
Derivative Liabilities
Fair Value	3,387	5,515
Not Designated as Hedging Instrument
Derivative Assets
Fair Value	10,965	14,947
Derivative Liabilities
Fair Value	10,891	14,937
Interest rate contracts
Derivative Assets
Fair Value	12,206	13,051
Derivative Liabilities
Fair Value	3,387	5,515
Interest rate contracts \| Designated as Hedging Instrument
Derivative Assets
Notional Amount	435,000	110,000
Fair Value	12,206	13,051
Derivative Liabilities
Fair Value	3,387	5,515
Customer loan swaps \| Not Designated as Hedging Instrument
Derivative Assets
Notional Amount	298,143	260,130
Fair Value	10,699	14,802
Derivative Liabilities
Notional Amount	298,143	260,130
Fair Value	10,748	14,850
Risk participation agreements \| Not Designated as Hedging Instrument
Derivative Assets
Notional Amount	28,077	21,818
Fair Value	0	0
Derivative Liabilities
Notional Amount	52,193	44,438
Fair Value	0	0
Fixed Rate mortgage interest rate lock commitments \| Not Designated as Hedging Instrument
Derivative Assets
Notional Amount	10,924	4,493
Fair Value	215	31
Derivative Liabilities
Notional Amount	2,092	9,597
Fair Value	11	87
Forward delivery commitments \| Not Designated as Hedging Instrument
Derivative Assets
Notional Amount	3,445	5,259
Fair Value	51	114
Derivative Liabilities
Notional Amount	6,706	0
Fair Value	$ 132	$ 0

Derivatives and Hedging (Sche_2

Derivatives and Hedging (Schedule of cash flow hedging instruments, location) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax	$ 38	$ 2,158	$ 642
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax	56	2,100	780
Interest Income (Expense), Net	132,263	147,694	137,436
Cash Flow Hedging \| Interest and Fees on Loans
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax	(3,446)	5	1,614
Cash Flow Hedging \| Interest on Deposits
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax	306	441	(661)
Cash Flow Hedging \| Interest on Subordinated Debentures
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax	707	(729)	(1,593)
Cash Flow Hedging \| Interest on Borrowings
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax	2,351	551
Cash Flow Hedging \| AOCI, Derivative Qualifying as Hedge, Included Component \| Interest and Fees on Loans
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax	(3,446)	5	1,614
Cash Flow Hedging \| AOCI, Derivative Qualifying as Hedge, Included Component \| Interest on Deposits
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax	306	441	(661)
Cash Flow Hedging \| AOCI, Derivative Qualifying as Hedge, Included Component \| Interest on Subordinated Debentures
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax	707	(729)	(1,593)
Cash Flow Hedging \| AOCI, Derivative Qualifying as Hedge, Included Component \| Interest on Borrowings
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax	2,351	551
Cash Flow Hedging \| AOCI, Derivative Qualifying as Hedge, Excluded Component \| Interest and Fees on Loans
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax	0	0	0
Cash Flow Hedging \| AOCI, Derivative Qualifying as Hedge, Excluded Component \| Interest on Deposits
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax	0	0	0
Cash Flow Hedging \| AOCI, Derivative Qualifying as Hedge, Excluded Component \| Interest on Subordinated Debentures
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax	0	0	0
Cash Flow Hedging \| AOCI, Derivative Qualifying as Hedge, Excluded Component \| Interest on Borrowings
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax	0	0
Cash Flow Hedging
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax	179	10,038	2,987
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax	(82)	268	(640)
Cash Flow Hedging \| Interest and Fees on Loans
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax	(3,446)	5	1,614
Cash Flow Hedging \| Interest and Fees on Loans \| Reclassification out of Accumulated Other Comprehensive Income
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Interest Income (Expense), Net	195,379	144,709	125,437
Cash Flow Hedging \| Interest on Deposits
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax	306	441	(661)
Cash Flow Hedging \| Interest on Deposits \| Reclassification out of Accumulated Other Comprehensive Income
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Interest Income (Expense), Net	78,884	20,305	7,920
Cash Flow Hedging \| Interest on Subordinated Debentures
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax	707	(729)	(1,593)
Cash Flow Hedging \| Interest on Subordinated Debentures \| Reclassification out of Accumulated Other Comprehensive Income
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Interest Income (Expense), Net	2,150	2,140	2,523
Cash Flow Hedging \| Interest on Borrowings
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax	2,351	551
Cash Flow Hedging \| Interest on Borrowings \| Reclassification out of Accumulated Other Comprehensive Income
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Interest Income (Expense), Net	12,949	2,649
Cash Flow Hedging \| AOCI, Derivative Qualifying as Hedge, Included Component
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax	179	10,038	2,987
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax	(82)	268	(640)
Cash Flow Hedging \| AOCI, Derivative Qualifying as Hedge, Included Component \| Interest and Fees on Loans
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax	(3,446)	5	1,614
Cash Flow Hedging \| AOCI, Derivative Qualifying as Hedge, Included Component \| Interest on Deposits
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax	306	441	(661)
Cash Flow Hedging \| AOCI, Derivative Qualifying as Hedge, Included Component \| Interest on Subordinated Debentures
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax	707	(729)	(1,593)
Cash Flow Hedging \| AOCI, Derivative Qualifying as Hedge, Included Component \| Interest on Borrowings
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax	2,351	551
Cash Flow Hedging \| AOCI, Derivative Qualifying as Hedge, Excluded Component
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax	0	0	0
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax	0	0	0
Cash Flow Hedging \| AOCI, Derivative Qualifying as Hedge, Excluded Component \| Interest and Fees on Loans
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax	0	0	0
Cash Flow Hedging \| AOCI, Derivative Qualifying as Hedge, Excluded Component \| Interest on Deposits
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax	0	0	0
Cash Flow Hedging \| AOCI, Derivative Qualifying as Hedge, Excluded Component \| Interest on Subordinated Debentures
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax	0	0	0
Cash Flow Hedging \| AOCI, Derivative Qualifying as Hedge, Excluded Component \| Interest on Borrowings
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax	0	0
Cash Flow Hedging \| Interest rate contracts
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax	(795)	(6,147)	(1,697)
Cash Flow Hedging \| Interest rate contracts \| AOCI, Derivative Qualifying as Hedge, Included Component
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax	(795)	(6,147)	(1,697)
Cash Flow Hedging \| Interest rate contracts \| AOCI, Derivative Qualifying as Hedge, Excluded Component
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax	0	0	0
Cash Flow Hedging \| Interest rate contracts
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax	(1)	5,892	2,447
Cash Flow Hedging \| Interest rate contracts \| AOCI, Derivative Qualifying as Hedge, Included Component
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax	(1)	5,892	2,447
Cash Flow Hedging \| Interest rate contracts \| AOCI, Derivative Qualifying as Hedge, Excluded Component
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax	0	0	0
Cash Flow Hedging \| Interest rate contracts
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax	455	2,455
Cash Flow Hedging \| Interest rate contracts \| AOCI, Derivative Qualifying as Hedge, Included Component
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax	455	2,455
Cash Flow Hedging \| Interest rate contracts \| AOCI, Derivative Qualifying as Hedge, Excluded Component
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax	0	0
Cash Flow Hedging \| Interest rate contracts
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax	520	7,838	2,237
Cash Flow Hedging \| Interest rate contracts \| AOCI, Derivative Qualifying as Hedge, Included Component
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax	520	7,838	2,237
Cash Flow Hedging \| Interest rate contracts \| AOCI, Derivative Qualifying as Hedge, Excluded Component
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax	0	0	0
Fair Value Hedging \| Interest rate contracts \| Interest and Fees on Loans
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge	(15,613)	0	0
Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments	20,317	0	0
Fair Value Hedging \| Interest rate contracts \| Interest on Deposits
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge	0	0	0
Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments	0	0	0
Fair Value Hedging \| Interest rate contracts \| Interest on Subordinated Debentures
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge	0	0	0
Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments	0	0	$ 0
Fair Value Hedging \| Interest rate contracts \| Interest on Borrowings
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge	0	0
Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments	$ 0	$ 0

Derivatives and Hedging (Sche_3

Derivatives and Hedging (Schedule of derivatives effect on OCI) (Details) - Not Designated as Hedging Instrument - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Derivative, Gain (Loss) on Derivative, Net	$ (87)	$ (162)	$ (304)
Fixed Rate mortgage interest rate lock commitments
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Derivative, Gain (Loss) on Derivative, Net	109	34	(80)
Forward delivery commitments
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Derivative, Gain (Loss) on Derivative, Net	(195)	140	(35)
Customer loan swaps
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Derivative, Gain (Loss) on Derivative, Net	$ (1)	$ (336)	$ (189)

Balance Sheet Offsetting (Detai

Balance Sheet Offsetting (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Offsetting Assets [Line Items]
Derivative Asset, Not Offset	$ 0	$ 0
Derivative Asset, Securities Purchased under Agreements to Resell, Securities Borrowed, Gross	22,905	27,853
Derivative Asset, Securities Purchased under Agreements to Resell, Securities Borrowed, Liability	0	0
Derivative Asset, Securities Purchased under Agreements to Resell, Securities Borrowed	22,905	27,853
Derivative Asset, Securities Purchased under Agreements to Resell, Securities Borrowed, Not Offset, Policy Election Deduction	0	0
Derivative Asset, Securities Purchased under Agreements to Resell, Securities Borrowed, Collateral, Obligation to Return Cash	(18,871)	(10,915)
Derivative Asset, Securities Purchased under Agreements to Resell, Securities Borrowed, Amount Offset Against Collateral	4,034	16,938
Derivative Liability, Not Offset	0	0
Derivative Liability, Securities Sold under Agreements to Repurchase, Securities Loaned, Gross	14,135	20,365
Derivative Liability, Securities Sold under Agreements to Repurchase, Securities Loaned, Asset	0	0
Derivative Liability, Securities Sold under Agreements to Repurchase, Securities Loaned	14,135	20,365
Derivative Liability, Securities Sold under Agreements to Repurchase, Securities Loaned, Not Offset, Policy Election Deduction	0	0
Derivative Liability, Securities Sold under Agreements to Repurchase, Securities Loaned, Collateral, Right to Reclaim Cash	3,387	5,515
Derivative Liability, Securities Sold under Agreements to Repurchase, Securities Loaned, Amount Offset Against Collateral	10,748	14,850
Securities Sold under Agreements to Repurchase, Gross	200,657	196,451
Securities Sold under Agreements to Repurchase, Asset	0	0
Securities Sold under Agreements to Repurchase	200,657	196,451
Derivative Liability, Securities Sold under Agreements to Repurchase, Securities Loaned, Collateral, Right to Reclaim Securities	200,657	196,451
Securities Sold under Agreements to Repurchase, Collateral, Right to Reclaim Cash	0	0
Securities Sold under Agreements to Repurchase, Amount Offset Against Collateral	0	0
Customer Loan Swap - Dealer Bank
Offsetting Assets [Line Items]
Derivative Asset, Fair Value, Gross Asset	9,168
Derivative Asset, Fair Value, Gross Liability	0
Fair Value	9,168
Derivative, Collateral, Obligation to Return Cash	8,800
Derivative, Collateral, Obligation to Return Cash	368
Derivative Liability, Fair Value, Gross Liability	10,748	14,850
Derivative Liability, Fair Value, Gross Asset	0	0
Fair Value	10,748	14,850
Derivative, Collateral, Right to Reclaim Cash	0	0
Derivative Liability, Fair Value, Amount Offset Against Collateral	10,748	14,850
Customer Loan Swap - Commercial Customer
Offsetting Assets [Line Items]
Derivative Asset, Fair Value, Gross Asset	1,531	14,802
Derivative Asset, Fair Value, Gross Liability	0	0
Fair Value	1,531	14,802
Derivative, Collateral, Obligation to Return Cash	0	0
Derivative, Collateral, Obligation to Return Cash	1,531	14,802
Interest rate contracts
Offsetting Assets [Line Items]
Derivative Asset, Fair Value, Gross Asset	12,206	13,051
Derivative Asset, Fair Value, Gross Liability	0	0
Fair Value	12,206	13,051
Derivative, Collateral, Obligation to Return Cash	(10,071)	(10,915)
Derivative, Collateral, Obligation to Return Cash	2,135	2,136
Derivative Liability, Fair Value, Gross Liability	3,387	5,515
Derivative Liability, Fair Value, Gross Asset	0	0
Fair Value	3,387	5,515
Derivative, Collateral, Right to Reclaim Cash	3,387	5,515
Derivative Liability, Fair Value, Amount Offset Against Collateral	$ 0	$ 0

Shareholders' Equity (Details)

Shareholders' Equity (Details) $ in Thousands	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Total risk-based capital:
Actual Regulatory Capital - Amount	$ 577,440	$ 557,571
Capital To Risk Weighted Assets	0.1436	0.1380
Minimum Requirement for capital Adequacy Including Capital Buffer Total Risk-Based Capital Ratio	10.50%
Minimum Regulatory Capital Required - Ratio		0.1050
Minimum Regulatory Provision To Be Well Capitalized - Ratio	0.1000	0.1000
Tier 1 capital:
Actual Regulatory Capital - Amount	$ 538,153	$ 517,385
Actual Regulatory Capital - Ratio	0.1338	0.1281
Minimum Regulatory Capital Required for Capital Adequacy Plus Capital Conservation Buffer	8.50%
Minimum Regulatory Capital Required for Capital Adequacy Plus Capital Conservation Buffer		8.50%
Minimum Regulatory Provision To Be Well Capitalized - Ratio	0.0600	0.0600
Common equity tier I capital	$ 495,153	$ 474,385
Tier 1 leverage capital ratio:
Actual Regulatory Capital - Amount	$ 538,153	$ 517,385
Actual Regulatory Capital - Ratio	0.0940	0.0922
Minimum Regulatory Capital Required - Ratio	0.0400	0.0400
Common Equity Tier I Risk Based Capital Ratio	12.31%	11.74%
Minimum Requirement for capital Adequacy Including Capital Buffer Common Equity Tier I Risk-Based Capital Ratio	7%
Common Equity Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets		7%
Subordinated Debt	$ 44,331	$ 44,331
Subsidiaries [Member]
Total risk-based capital:
Actual Regulatory Capital - Amount	$ 549,221	$ 525,346
Capital To Risk Weighted Assets	0.1370	0.1303
Minimum Requirement for capital Adequacy Including Capital Buffer Total Risk-Based Capital Ratio	10.50%
Minimum Regulatory Capital Required - Ratio		0.1050
Minimum Regulatory Provision To Be Well Capitalized - Ratio	0.1000	0.1000
Tier 1 capital:
Actual Regulatory Capital - Amount	$ 509,934	$ 485,160
Actual Regulatory Capital - Ratio	0.1272	0.1203
Minimum Regulatory Capital Required for Capital Adequacy Plus Capital Conservation Buffer	8.50%
Minimum Regulatory Capital Required for Capital Adequacy Plus Capital Conservation Buffer		8.50%
Minimum Regulatory Provision To Be Well Capitalized - Ratio	0.0800	0.0800
Common equity tier I capital	$ 509,934	$ 485,160
Tier 1 leverage capital ratio:
Actual Regulatory Capital - Amount	$ 509,934	$ 485,160
Actual Regulatory Capital - Ratio	0.0891	0.0865
Minimum Regulatory Capital Required - Ratio	0.0400	0.0400
Minimum Regulatory Provision To Be Well Capitalized - Ratio	0.0500	0.0500
Common Equity Tier I Risk Based Capital Ratio	12.72%	12.03%
Minimum Requirement for capital Adequacy Including Capital Buffer Common Equity Tier I Risk-Based Capital Ratio	7%
Common Equity Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets		7%
Common Equity Tier One Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets	6.50%	6.50%

Shareholders' Equity (Additiona

Shareholders' Equity (Additional Information) (Details) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($) $ / shares shares	Dec. 31, 2022 USD ($) $ / shares shares	Dec. 31, 2021 USD ($) $ / shares shares	Jan. 04, 2024 shares	Jan. 03, 2023 shares	Jan. 31, 2022 shares	Feb. 28, 2021 shares	Dec. 31, 2008 USD ($)
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
number of years	2
Dividends declared to shareholders	$ 24,500	$ 23,700	$ 22,100
Subordinated Debt	44,331	44,331
Junior Subordinated Debt
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Subordinated Debt	43,000
Value Of Trust Preferred Securities Included In Tier 1 Capital	43,000
Debt Instrument, Face Amount								$ 43,000
Subsidiaries [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Dividends declared to shareholders	$ 22,500	$ 31,700	$ 41,700
Share Repurchase Program 2021
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Stock repurchase program, shares of common stock approved for repurchase \| shares							750,000
Stock repurchased during period, shares \| shares			217,931
Shares repurchased, average cost per share \| $ / shares			$ 46.25
Share Repurchase Program 2022
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Stock repurchase program, shares of common stock approved for repurchase \| shares					750,000	750,000
Stock repurchased during period, shares \| shares	65,692	225,245
Shares repurchased, average cost per share \| $ / shares	$ 30.44	$ 45.46
Subsequent Event [Member] \| Share Repurchase Program 2022
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Stock repurchase program, shares of common stock approved for repurchase \| shares				750,000

Other Comprehensive Income (L_3

Other Comprehensive Income (Loss) - Components of Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Debt Securities:
Unrealized holdings losses, pre-tax amount	$ 13,646	$ (172,699)	$ (38,832)
Unrealized holdings losses, tax (expense) benefit	(2,932)	37,131	8,349
Unrealized holdings losses, after-tax amount	10,714	(135,568)	(30,483)
Less: reclassification adjustment for amortization of securities transferred from AFS to HTM, before tax	(6,781)	(5,715)	0
Less: reclassification adjustment for amortization of securities transferred from AFS to HTM, tax	1,458	1,229	0
Less: reclassification adjustment for amortization of securities transferred from AFS to HTM, after tax	(5,323)	(4,486)	0
Less: reclassification adjustment for realized losses, pre-tax amount	(10,310)	(912)	0
Less: reclassification adjustment for realized losses, tax (expense) benefit	2,217	196	0
Less: reclassification adjustment for realized losses, after-tax amount	(8,093)	(716)	0
Net unrealized losses, pre-tax amount	30,737	(166,072)	(38,832)
Net unrealized losses, tax (expense) benefit	(6,607)	35,706	8,349
Net unrealized losses, after-tax amount	24,130	(130,366)	(30,483)
Cash Flow Hedges:
Net increase in fair value, pre-tax amount	179	10,038	2,987
Net increase in fair value, tax (expense) benefit	(38)	(2,158)	(642)
Net increase in fair value, after-tax amount	141	7,880	2,345
Net increase in fair value, pre-tax amount	261	9,770	3,627
Net increase in fair value, tax (expense) benefit	(56)	(2,100)	(780)
Net increase in fair value, after-tax amount	205	7,670	2,847
Postretirement Plans:
Net actuarial loss, pre-tax amount	114	2,859	(20)
Net actuarial loss, tax (expense) benefit	(25)	(614)	4
Net actuarial loss, after-tax amount	89	2,245	(16)
Less: Amortization of net actuarial losses, pre-tax amount	3	(947)	(894)
Less: Amortization of net actuarial losses, tax (expense) benefit	(1)	203	192
Less: Amortization of net prior service credits, after-tax amount	2	(744)	(702)
Less: Amortization of net prior service credits, pre-tax amount	24	24	24
Less: Amortization of net prior service credits, tax (expense) benefit	(5)	(5)	(5)
Less: Amortization of net prior service credits, after-tax amount	19	19	19
Net loss on postretirement plans, pre-tax amount	87	3,782	850
Net loss on postretirement plans, tax (expense) benefit	(19)	(812)	(183)
Net (loss) gain on postretirement plans, net of tax	68	2,970	667
Other comprehensive income, pre-tax amount	31,085	(152,520)	(34,355)
Other comprehensive income, tax (expense) benefit	(6,682)	32,794	7,386
Other comprehensive income (loss)	24,403	(119,726)	(26,969)
Interest Expense, Borrowings and Subordinated Debentures
Cash Flow Hedges:
Less: effective portion reclassified into interest expense, pre-tax amount	3,364	263	(2,254)
Less: effective portion reclassified into interest expense, tax (expense) benefit	(723)	(57)	485
Less: effective portion reclassified into interest expense, after-tax amount	2,641	206	(1,769)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Less: effective portion reclassified into interest expense, pre-tax amount	3,364	263	(2,254)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, Tax	723	57	(485)
Less: Amounts reclassified from AOCI	2,641	206	(1,769)
Interest Income, Interest and Fees on Loans
Cash Flow Hedges:
Less: effective portion reclassified into interest expense, pre-tax amount	(3,446)	5	1,614
Less: effective portion reclassified into interest expense, tax (expense) benefit	741	(1)	(347)
Less: effective portion reclassified into interest expense, after-tax amount	(2,705)	4	1,267
Accumulated Other Comprehensive Income (Loss) [Line Items]
Less: effective portion reclassified into interest expense, pre-tax amount	(3,446)	5	1,614
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, Tax	(741)	1	347
Less: Amounts reclassified from AOCI	$ (2,705)	$ 4	$ 1,267

Other Comprehensive Income (L_4

Other Comprehensive Income (Loss) - Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	$ 451,278	$ 541,294	$ 529,314
Other comprehensive (loss) income before reclassifications	21,504	(118,716)	(28,138)
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent	(2,899)	1,010	(1,169)
Other comprehensive income (loss)	24,403	(119,726)	(26,969)
Ending Balance	495,064	451,278	541,294
AOCI
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	(125,955)	(6,229)	20,740
Ending Balance	(101,552)	(125,955)	(6,229)
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	(131,539)	(1,173)	29,310
Other comprehensive (loss) income before reclassifications	21,363	(126,596)	(30,483)
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent	(2,767)	3,770	0
Other comprehensive income (loss)	24,130	(130,366)	(30,483)
Ending Balance	(107,409)	(131,539)	(1,173)
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	5,891	(1,779)	(4,626)
Other comprehensive (loss) income before reclassifications	141	7,880	2,345
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent	(64)	210	(502)
Other comprehensive income (loss)	205	7,670	2,847
Ending Balance	6,096	5,891	(1,779)
Accumulated Defined Benefit Plans Adjustment Attributable to Parent
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning Balance	(307)	(3,277)	(3,944)
Other comprehensive (loss) income before reclassifications	0	0	0
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent	(68)	(2,970)	(667)
Other comprehensive income (loss)	68	2,970	667
Ending Balance	$ (239)	$ (307)	$ (3,277)

Revenue from Contracts with C_3

Revenue from Contracts with Customers (Details) - USD ($)	12 Months Ended
Revenue from Contracts with Customers (Details) - USD ($)	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disaggregation of Revenue [Line Items]
Non-interest income within the scope of ASC 606	$ 33,567,000	$ 33,274,000	$ 31,954,000
Total non-interest income not in scope of ASC 606	(2,533,000)	7,428,000	17,781,000
Total non-interest income	31,034,000	40,702,000	49,735,000
Cash rewards	507,000	525,000	477,000
Loss on Sale of Investments	10,300,000	912,000	0
Debit card income
Disaggregation of Revenue [Line Items]
Non-interest income within the scope of ASC 606	12,613,000	13,340,000	13,105,000
Service charges on deposit accounts
Disaggregation of Revenue [Line Items]
Non-interest income within the scope of ASC 606	7,839,000	7,587,000	6,626,000
Income from fiduciary services
Disaggregation of Revenue [Line Items]
Non-interest income within the scope of ASC 606	6,669,000	6,407,000	6,516,000
Brokerage and insurance commissions
Disaggregation of Revenue [Line Items]
Non-interest income within the scope of ASC 606	4,650,000	4,147,000	3,913,000
Other income
Disaggregation of Revenue [Line Items]
Non-interest income within the scope of ASC 606	$ 1,796,000	$ 1,793,000	$ 1,794,000

Stock-Based Compensation Plan_2

Stock-Based Compensation Plans (Additional Information) (Details) - USD ($) $ in Thousands			12 Months Ended
	Apr. 26, 2022	May 01, 2012	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Cash used to settle stock based compensation transactions			$ 545	$ 688	$ 629
Percentage of total compensation			4%
Stock Option And Incentive Plan 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum number of shares of stock reserved and available for issuance	500,000
Stock based compensation, option granted, contractual life	10 years
Stock Option and Incentive Plan 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum number of shares of stock reserved and available for issuance		1,200,000
Stock based compensation, option granted, contractual life			10 years
RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant date fair value of share based awards			$ 1,600	1,300	994
Share-based compensation			962	724	610
Tax benefit from share based compensation			$ 207	156	131
Granted			44,730
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant date fair value of share based awards			$ 1,500	1,200	924
Share-based compensation			1,225	1,053	895
Tax benefit from share based compensation			$ 263	226	192
Granted			44,451
Management Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant date fair value of share based awards			$ 79	113	157
Share-based compensation			93	124	104
Tax benefit from share based compensation			20	27	22
Cash received from issuance of share based awards			$ 219	342	324
Granted			8,037
Management Stock Purchase Plan \| Interest and Other Liabilities
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Cash received from issuance of share based awards			$ 558	633
Performance-based share units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation, vesting period			3 years
Share-based compensation			$ 332	457	637
Tax benefit from share based compensation			71	98	137
Total intrinsic value of options exercised			$ 1,600	1,100	753
Performance period			3 years
Granted			46,372
DCRP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant date fair value of share based awards			$ 288	267	247
Share-based compensation			188	169	135
Tax benefit from share based compensation			$ 40	$ 36	$ 29
Percentage of total compensation			10%
Percentage vested on 65th birthday			100%
Qualified Stock Options \| Stock Option And Incentive Plan 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise price as a percentage of fair market value on the date of grant	100%
Qualified Stock Options \| Stock Option and Incentive Plan 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise price as a percentage of fair market value on the date of grant		100%
Nonqualified Stock Options \| Stock Option and Incentive Plan 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercise price as a percentage of fair market value on the date of grant		85%

Stock-Based Compensation Plan_3

Stock-Based Compensation Plans (Schedule of Stock Option Activity) (Details)	12 Months Ended
	Dec. 31, 2023
Weighted- Average Remaining Contractual Term
Options outstanding	0 years
Options exercisable	0 years

Stock-Based Compensation Plan_4

Stock-Based Compensation Plans (Schedule of Compensation Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
RSUs
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Compensation expense(1)	$ 962	$ 724	$ 610
Income tax benefit	207	156	131
Fair value of grants vested	803	622	506
Restricted Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Compensation expense(1)	1,225	1,053	895
Income tax benefit	263	226	192
Fair value of grants vested	1,187	1,014	901
Management Stock Purchase Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Compensation expense(1)	93	124	104
Income tax benefit	20	27	22
Fair value of grants vested	129	87	70
Performance-based share units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Compensation expense(1)	332	457	637
Income tax benefit	71	98	137
Fair value of grants vested	594	548	435
DCRP
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Compensation expense(1)	188	169	135
Income tax benefit	40	36	29
Fair value of grants vested	$ 171	$ 174	$ 118

Stock-Based Compensation Plan_5

Stock-Based Compensation Plans (Summary of Activity Related to Share Based Awards) (Details) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($) $ / shares shares
RSUs
Number of Shares
Nonvested, beginning	57,822
Granted	44,730
Vested	(19,032)
Forfeited	(8,789)
Nonvested, ending	74,731
Weighted Average Grant Date Fair Value
Nonvested, beginning \| $ / shares	$ 44.88
Granted \| $ / shares	36.21
Vested \| $ / shares	42.17
Forfeited \| $ / shares	43.19
Nonvested, ending \| $ / shares	$ 40.58
Weighted-Average Remaining Contractual Term (Years)
Nonvested, weighted average remaining contractual term	2 years 9 months
Aggregate Intrinsic Value
Nonvested, aggregate intrinsic value \| $	$ 2,812
Unrecognized Compensation
Nonvested, unrecognized compensation \| $	$ 2,261
Restricted Stock
Number of Shares
Nonvested, beginning	20,536
Granted	44,451
Vested	(33,763)
Forfeited	(2,690)
Nonvested, ending	28,534
Weighted Average Grant Date Fair Value
Nonvested, beginning \| $ / shares	$ 44.53
Granted \| $ / shares	32.80
Vested \| $ / shares	35.16
Forfeited \| $ / shares	40.19
Nonvested, ending \| $ / shares	$ 37.76
Weighted-Average Remaining Contractual Term (Years)
Nonvested, weighted average remaining contractual term	1 year 10 months 24 days
Aggregate Intrinsic Value
Nonvested, aggregate intrinsic value \| $	$ 1,074
Unrecognized Compensation
Nonvested, unrecognized compensation \| $	$ 672
Management Stock Purchase Plan
Number of Shares
Nonvested, beginning	17,184
Granted	8,037
Vested	(7,886)
Forfeited	(761)
Nonvested, ending	16,574
Weighted Average Grant Date Fair Value
Nonvested, beginning \| $ / shares	$ 14.12
Granted \| $ / shares	9.84
Vested \| $ / shares	16.34
Forfeited \| $ / shares	11.63
Nonvested, ending \| $ / shares	$ 11.10
Weighted-Average Remaining Contractual Term (Years)
Nonvested, weighted average remaining contractual term	7 months 6 days
Aggregate Intrinsic Value
Nonvested, aggregate intrinsic value \| $	$ 66
Unrecognized Compensation
Nonvested, unrecognized compensation \| $	$ 51
Performance-based share units
Number of Shares
Nonvested, beginning	61,186
Granted	46,372
Vested	(17,283)
Forfeited	(17,193)
Nonvested, ending	73,082
Weighted Average Grant Date Fair Value
Nonvested, beginning \| $ / shares	$ 41.65
Granted \| $ / shares	34
Vested \| $ / shares	34.39
Forfeited \| $ / shares	36.96
Nonvested, ending \| $ / shares	$ 39.92
Weighted-Average Remaining Contractual Term (Years)
Nonvested, weighted average remaining contractual term	1 year 7 months 6 days
Aggregate Intrinsic Value
Nonvested, aggregate intrinsic value \| $	$ 2,917
Unrecognized Compensation
Nonvested, unrecognized compensation \| $	$ 458
DCRP Awards [Member]
Number of Shares
Nonvested, beginning	8,382
Granted	7,958
Vested	(4,430)
Forfeited	(750)
Nonvested, ending	11,160
Weighted Average Grant Date Fair Value
Nonvested, beginning \| $ / shares	$ 44.85
Granted \| $ / shares	36.21
Vested \| $ / shares	38.62
Forfeited \| $ / shares	36.21
Nonvested, ending \| $ / shares	$ 41.74
Weighted-Average Remaining Contractual Term (Years)
Nonvested, weighted average remaining contractual term	13 years 8 months 12 days
Aggregate Intrinsic Value
Nonvested, aggregate intrinsic value \| $	$ 420
Unrecognized Compensation
Nonvested, unrecognized compensation \| $	$ 405
Performance Shares
Number of Shares
Forfeited	(11,895)

Employee Benefit Plans (Additio

Employee Benefit Plans (Additional Information) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plan Disclosure [Line Items]
Contribution match, as a percentage of annual pay	4%
Contribution matches, percentage of pre-tax compensation	3%	3%	3%
Expenses under the 401(K)/Profit Sharing plan	$ 1,700	$ 1,600	$ 1,500
Profit Sharing Plan
Defined Benefit Plan Disclosure [Line Items]
Expenses under the 401(K)/Profit Sharing plan			$ 1,300
Supplemental Executive Retirement Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Minimum guaranteed benefit term	15 years
Accumulated benefit obligation	$ 15,500	$ 15,000
Expected amortization of net actuarial loss	0
Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Expected amortization of net actuarial loss	4
Expected amortization of prior service cost	$ 24

Employee Benefit Plans (Schedul

Employee Benefit Plans (Schedule of Changes in Benefit Obligation and Plan Assets) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Supplemental Executive Retirement Plan [Member]
Benefit obligations:
Beginning of year	$ 15,042	$ 16,610
Service cost	281	534	$ 504
Interest cost	756	460	389
Actuarial (gain) loss	(65)	(1,996)
Defined Benefit Plan, Benefit Obligation, Benefits Paid	526	566
End of year	15,488	15,042	16,610
Fair value of plan assets:
Beginning of year	0	0
Employer contributions	526	566
Defined Benefit Plan, Plan Assets, Benefits Paid	526	566
End of year	0	0	0
Unfunded status at end of year(1)	15,488	15,042
Amounts recognized in accumulated other comprehensive loss
Net actuarial loss (gain)	361	412
Prior service credit	0	0
Total	361	412
Other Postretirement Benefits Plan [Member]
Benefit obligations:
Beginning of year	3,261	4,167
Service cost	11	21	26
Interest cost	162	111	103
Actuarial (gain) loss	(48)	(863)
Defined Benefit Plan, Benefit Obligation, Benefits Paid	171	175
End of year	3,215	3,261	4,167
Fair value of plan assets:
Beginning of year	0	0
Employer contributions	171	175
Defined Benefit Plan, Plan Assets, Benefits Paid	171	175
End of year	0	0	$ 0
Unfunded status at end of year(1)	3,215	3,261
Amounts recognized in accumulated other comprehensive loss
Net actuarial loss (gain)	(57)	(76)
Prior service credit	(65)	(29)
Total	$ (122)	$ (105)

Employee Benefit Plans (Sched_2

Employee Benefit Plans (Schedule of Net Period Benefit Cost and Other Amounts Recognized in Other Comprehensive Income) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Changes in funded status recognized in other comprehensive loss, before taxes
Total recognized in OCI, before taxes	$ (87)	$ (3,782)	$ (850)
Supplemental Executive Retirement Plan [Member]
Net period benefit cost
Service cost	281	534	504
Interest cost	756	460	389
Recognized net actuarial loss (gain)(2)	0	859	778
Amortization of prior service credit(2)	0	0	0
Net periodic benefit cost	1,037	1,853	1,671
Changes in funded status recognized in other comprehensive loss, before taxes
Net actuarial (gain) loss arising during period	(65)	(1,996)	222
Amortization of net unrecognized actuarial (loss) gain	0	(859)	(778)
Amortization of prior service credit	0	0	0
Total recognized in OCI, before taxes	(65)	(2,855)	(556)
Total recognized in net periodic benefit cost and OCI, before taxes	972	(1,002)	1,115
Other Postretirement Benefits Plan [Member]
Net period benefit cost
Service cost	11	21	26
Interest cost	162	111	103
Recognized net actuarial loss (gain)(2)	(3)	88	116
Amortization of prior service credit(2)	(24)	(24)	(24)
Net periodic benefit cost	146	196	221
Changes in funded status recognized in other comprehensive loss, before taxes
Net actuarial (gain) loss arising during period	(49)	(863)	(202)
Amortization of net unrecognized actuarial (loss) gain	3	(88)	(116)
Amortization of prior service credit	24	24	24
Total recognized in OCI, before taxes	(22)	(927)	(294)
Total recognized in net periodic benefit cost and OCI, before taxes	$ 124	$ (731)	$ (73)

Employee Benefit Plans (Sched_3

Employee Benefit Plans (Schedule of Assumptions Used to Determine Benefit Obligations and Net Periodic Benefit Cost) (Details)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Supplemental Executive Retirement Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate for benefit obligation	4.90%	5.10%	2.80%
Discount rate for net periodic benefit cost	5.10%	2.80%	2.50%
Rate of compensation increase for benefit obligation(1)		3%	3%
Rate of compensation increase for net periodic benefit cost(1)		3%	3%
Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rate for benefit obligation	5%	5.20%	2.80%
Discount rate for net periodic benefit cost	5.20%	2.80%	2.40%
Other Postretirement Benefits Plan [Member] \| Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Health care cost trend rate assumed for future years	4.50%	4.50%
Other Postretirement Benefits Plan [Member] \| Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Health care cost trend rate assumed for future years	7.50%	6.50%

Employee Benefit Plans (Sched_4

Employee Benefit Plans (Schedule of Estimated Future Benefit Payments) (Details) $ in Thousands	Dec. 31, 2023 USD ($)
Supplemental Executive Retirement Plan [Member]
Expected future benefit payments under the plans:
2024	$ 1,293
2025	1,201
2026	1,201
2027	1,177
2028	1,194
Next 5 years	5,749
Other Postretirement Benefits Plan [Member]
Expected future benefit payments under the plans:
2024	286
2025	276
2026	260
2027	238
2028	246
Next 5 years	$ 1,096

Income Taxes (Schedule of Incom

Income Taxes (Schedule of Income Tax Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Current:
Federal	$ 7,990	$ 12,334	$ 16,555
State	1,156	1,489	1,709
Total	9,146	13,823	18,264
Deferred:
Federal	1,277	1,743	(622)
Deferred State and Local Income Tax Expense (Benefit)	30	42	(15)
Deferred Income Tax Expense (Benefit)	1,307	1,785	(637)
Income tax expense	$ 10,453	$ 15,608	$ 17,627

Income Taxes (Reconciliation of

Income Taxes (Reconciliation of Expected Income Tax Benefit Computed Using Federal Statutory Income Tax Rate) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Computed tax expense	$ 11,306	$ 16,180	$ 18,195
State taxes, net of federal benefit	937	1,209	1,338
Tax exempt income	(647)	(732)	(782)
Income from life insurance	(493)	(399)	(496)
Low income housing credits	(831)	(846)	(591)
Share-based awards	69	(100)	(103)
Other	112	296	66
Income tax expense	10,453	15,608	17,627
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	$ 53,836	$ 77,047	$ 86,641
Effective tax rate	19.40%	20.30%	20.30%

Income Taxes (Schedule of Defer

Income Taxes (Schedule of Deferred Tax Assets and Deferred Tax Liabilities) (Details) - USD ($)	Dec. 31, 2023	Dec. 31, 2022
Asset
Net operating loss and tax credit carryforward	$ 7,084,000	$ 7,913,000
Allowance for credit losses	8,447,000	8,640,000
Net unrealized losses on AFS securities	29,418,000	36,027,000
Pension and other benefits	4,656,000	4,536,000
Deferred compensation and benefits	1,033,000	892,000
Total	50,638,000	58,008,000
Liability
Depreciation	(2,359,000)	(2,536,000)
Net unrealized (gains) losses on derivative instruments	(1,670,000)	(1,613,000)
Deferred loan origination fees	(3,235,000)	(3,253,000)
Other	1,148,000	389,000
Total	(8,412,000)	(7,791,000)
Valuation allowance on deferred tax assets	0	0
Net deferred tax assets	$ 42,226,000	$ 50,217,000

Income Taxes (Additional Inform

Income Taxes (Additional Information) (Details) - USD ($)	Dec. 31, 2023	Dec. 31, 2022	Oct. 16, 2016
Income Tax Contingency [Line Items]
Operating Loss Carryforwards	$ 32,800,000	$ 36,700,000
Valuation allowance on deferred tax assets	$ 0	$ 0
Domestic Tax Authority [Member]
Income Tax Contingency [Line Items]
Operating Loss Carryforwards			$ 3,900,000

EPS (Computation of Basic and D

EPS (Computation of Basic and Diluted Earnings Per Share) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Earnings Per Share [Abstract]
Net Income	$ 43,383	$ 61,439	$ 69,014
Dividends and undistributed earnings allocated to participating securities(1)	(53)	(162)	(190)
Net income available to common shareholders	$ 43,330	$ 61,277	$ 68,824
Weighted-average common shares outstanding for basic EPS	14,563,380	14,644,170	14,903,855
Dilutive effect of stock-based awards	45,965	56,840	67,723
Weighted-average common and potential common shares for diluted EPS	14,609,345	14,701,010	14,971,578
Basic EPS	$ 2.98	$ 4.18	$ 4.62
Diluted EPS	$ 2.97	$ 4.17	$ 4.60

EPS (Additional Information) (D

EPS (Additional Information) (Details) - shares	12 Months Ended
EPS (Additional Information) (Details) - shares	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Performance-based share units
Earnings Per Share [Abstract]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	3,075	0	0
Shares that were not considered in computation of potential common shares for purposes of diluted EPS	3,075	0	0
RSUs
Earnings Per Share [Abstract]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	9,049	0	0
Shares that were not considered in computation of potential common shares for purposes of diluted EPS	9,049	0	0

Fair Value (Summary of Financia

Fair Value (Summary of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Financial Assets:
Trading securities	$ 4,647	$ 3,990
Fair Value	625,808	695,875
Loans Held-for-sale	10,320	5,197
Financial Liabilities:
Trading securities	4,647	3,990
Obligations of states and political subdivisions
Financial Assets:
Fair Value	6,386	49,226
Mortgage-backed securities issued or guaranteed by U.S. government sponsored enterprises
Financial Assets:
Fair Value	460,091	514,019
Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises
Financial Assets:
Fair Value	141,011	109,347
Fair Value, Measurements, Recurring [Member]
Financial Assets:
Trading securities	4,647	3,990
Loans Held-for-sale	10,320	5,197
Financial Liabilities:
Trading securities	4,647	3,990
Fair Value, Measurements, Recurring [Member] \| Obligations of states and political subdivisions
Financial Assets:
Fair Value	6,386	49,226
Fair Value, Measurements, Recurring [Member] \| Mortgage-backed securities issued or guaranteed by U.S. government sponsored enterprises
Financial Assets:
Fair Value	460,091	514,019
Fair Value, Measurements, Recurring [Member] \| Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises
Financial Assets:
Fair Value	141,011	109,347
Fair Value, Measurements, Recurring [Member] \| Corporate Bond Securities [Member]
Financial Assets:
Fair Value	18,320	23,283
Readily Available Market Prices (Level 1) [Member] \| Fair Value, Measurements, Recurring [Member]
Financial Assets:
Trading securities	4,647	3,990
Loans Held-for-sale	0	0
Financial Liabilities:
Trading securities	4,647	3,990
Readily Available Market Prices (Level 1) [Member] \| Fair Value, Measurements, Recurring [Member] \| Obligations of states and political subdivisions
Financial Assets:
Fair Value	0	0
Readily Available Market Prices (Level 1) [Member] \| Fair Value, Measurements, Recurring [Member] \| Mortgage-backed securities issued or guaranteed by U.S. government sponsored enterprises
Financial Assets:
Fair Value	0	0
Readily Available Market Prices (Level 1) [Member] \| Fair Value, Measurements, Recurring [Member] \| Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises
Financial Assets:
Fair Value	0	0
Readily Available Market Prices (Level 1) [Member] \| Fair Value, Measurements, Recurring [Member] \| Corporate Bond Securities [Member]
Financial Assets:
Fair Value	0	0
Observable Market Data (Level 2) [Member] \| Fair Value, Measurements, Recurring [Member]
Financial Assets:
Trading securities	0	0
Loans Held-for-sale	10,320	5,197
Financial Liabilities:
Trading securities	0	0
Observable Market Data (Level 2) [Member] \| Fair Value, Measurements, Recurring [Member] \| Obligations of states and political subdivisions
Financial Assets:
Fair Value	6,386	49,226
Observable Market Data (Level 2) [Member] \| Fair Value, Measurements, Recurring [Member] \| Mortgage-backed securities issued or guaranteed by U.S. government sponsored enterprises
Financial Assets:
Fair Value	460,091	514,019
Observable Market Data (Level 2) [Member] \| Fair Value, Measurements, Recurring [Member] \| Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises
Financial Assets:
Fair Value	141,011	109,347
Observable Market Data (Level 2) [Member] \| Fair Value, Measurements, Recurring [Member] \| Corporate Bond Securities [Member]
Financial Assets:
Fair Value	18,320	23,283
Company Determined Fair Value (Level 3) [Member] \| Fair Value, Measurements, Recurring [Member]
Financial Assets:
Trading securities	0	0
Loans Held-for-sale	0	0
Financial Liabilities:
Trading securities	0	0
Company Determined Fair Value (Level 3) [Member] \| Fair Value, Measurements, Recurring [Member] \| Obligations of states and political subdivisions
Financial Assets:
Fair Value	0	0
Company Determined Fair Value (Level 3) [Member] \| Fair Value, Measurements, Recurring [Member] \| Mortgage-backed securities issued or guaranteed by U.S. government sponsored enterprises
Financial Assets:
Fair Value	0	0
Company Determined Fair Value (Level 3) [Member] \| Fair Value, Measurements, Recurring [Member] \| Collateralized mortgage obligations issued or guaranteed by U.S. government-sponsored enterprises
Financial Assets:
Fair Value	0	0
Company Determined Fair Value (Level 3) [Member] \| Fair Value, Measurements, Recurring [Member] \| Corporate Bond Securities [Member]
Financial Assets:
Fair Value	0	0
Fixed Rate mortgage interest rate lock commitments \| Fair Value, Measurements, Recurring [Member]
Financial Assets:
Customer interest rate swaps	215	31
Financial Liabilities:
Customer interest rate swaps	11	87
Fixed Rate mortgage interest rate lock commitments \| Readily Available Market Prices (Level 1) [Member] \| Fair Value, Measurements, Recurring [Member]
Financial Assets:
Customer interest rate swaps	0	0
Financial Liabilities:
Customer interest rate swaps	0	0
Fixed Rate mortgage interest rate lock commitments \| Observable Market Data (Level 2) [Member] \| Fair Value, Measurements, Recurring [Member]
Financial Assets:
Customer interest rate swaps	215	31
Financial Liabilities:
Customer interest rate swaps	11	87
Fixed Rate mortgage interest rate lock commitments \| Company Determined Fair Value (Level 3) [Member] \| Fair Value, Measurements, Recurring [Member]
Financial Assets:
Customer interest rate swaps	0	0
Financial Liabilities:
Customer interest rate swaps	0	0
Forward delivery commitments \| Fair Value, Measurements, Recurring [Member]
Financial Assets:
Customer interest rate swaps	51	114
Financial Liabilities:
Customer interest rate swaps	132
Forward delivery commitments \| Readily Available Market Prices (Level 1) [Member] \| Fair Value, Measurements, Recurring [Member]
Financial Assets:
Customer interest rate swaps	0
Financial Liabilities:
Customer interest rate swaps	0	0
Forward delivery commitments \| Observable Market Data (Level 2) [Member] \| Fair Value, Measurements, Recurring [Member]
Financial Assets:
Customer interest rate swaps	51	114
Financial Liabilities:
Customer interest rate swaps	132
Forward delivery commitments \| Company Determined Fair Value (Level 3) [Member] \| Fair Value, Measurements, Recurring [Member]
Financial Assets:
Customer interest rate swaps	0
Financial Liabilities:
Customer interest rate swaps	0	0
Customer loan swaps \| Fair Value, Measurements, Recurring [Member]
Financial Assets:
Customer interest rate swaps	10,699	14,802
Financial Liabilities:
Customer interest rate swaps	10,748	14,850
Customer loan swaps \| Readily Available Market Prices (Level 1) [Member] \| Fair Value, Measurements, Recurring [Member]
Financial Assets:
Customer interest rate swaps	0	0
Financial Liabilities:
Customer interest rate swaps	0	0
Customer loan swaps \| Observable Market Data (Level 2) [Member] \| Fair Value, Measurements, Recurring [Member]
Financial Assets:
Customer interest rate swaps	10,699	14,802
Financial Liabilities:
Customer interest rate swaps	10,748	14,850
Customer loan swaps \| Company Determined Fair Value (Level 3) [Member] \| Fair Value, Measurements, Recurring [Member]
Financial Assets:
Customer interest rate swaps	0	0
Financial Liabilities:
Customer interest rate swaps	0	0
Interest rate contracts
Financial Assets:
Fair Value	12,206	13,051
Financial Liabilities:
Junior subordinated debt interest rate swaps	3,387	5,515
Interest rate contracts \| Fair Value, Measurements, Recurring [Member]
Financial Assets:
Customer interest rate swaps		13,051
Fair Value	12,206
Financial Liabilities:
Junior subordinated debt interest rate swaps	3,387	5,515
Interest rate contracts \| Readily Available Market Prices (Level 1) [Member] \| Fair Value, Measurements, Recurring [Member]
Financial Assets:
Customer interest rate swaps		0
Fair Value	0
Financial Liabilities:
Junior subordinated debt interest rate swaps	0	0
Interest rate contracts \| Observable Market Data (Level 2) [Member] \| Fair Value, Measurements, Recurring [Member]
Financial Assets:
Customer interest rate swaps		13,051
Fair Value	12,206
Financial Liabilities:
Junior subordinated debt interest rate swaps	3,387	5,515
Interest rate contracts \| Company Determined Fair Value (Level 3) [Member] \| Fair Value, Measurements, Recurring [Member]
Financial Assets:
Customer interest rate swaps		0
Fair Value	0
Financial Liabilities:
Junior subordinated debt interest rate swaps	$ 0	$ 0

Fair Value (Valuation Methodolo

Fair Value (Valuation Methodology and Unobservable Inputs for Level Three Assets Measured at Fair Value on Non Recurring Basis) (Details) - Total Collateral -Dependent Non-Accrual Loans - Fair Value, Measurements, Nonrecurring [Member] - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 4,768	$ 69
Company Determined Fair Value (Level 3) [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	4,768	69
Readily Available Market Prices (Level 1) [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	0	0
Observable Market Data (Level 2) [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 0	$ 0

Fair Value (Carrying Amounts an

Fair Value (Carrying Amounts and Estimated Fair Value for Financial Instrument Assets and Liabilities) (Details) $ in Thousands	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Financial assets:
Debt Securities, Held-to-maturity, Fair Value	$ 510,595	$ 506,193
HTM debt securities	544,931	546,583
Servicing Assets, Fair Value Disclosure	4,124	4,412
Servicing Asset at Fair Value, Amount	4,124	4,412	$ 3,310	$ 2,447
Financial liabilities:
Time deposits	634,856	390,463
Short-term Debt, Fair Value	484,849	264,779
Junior subordinated debentures	31,918	31,032
Readily Available Market Prices (Level 1) [Member]
Financial assets:
Debt Securities, Held-to-maturity, Fair Value	0	0
Servicing Assets, Fair Value Disclosure	0	0
Financial liabilities:
Time deposits	0	0
Short-term Debt, Fair Value	0	0
Junior subordinated debentures	0	0
Observable Market Data (Level 2) [Member]
Financial assets:
Debt Securities, Held-to-maturity, Fair Value	510,595	506,193
Servicing Assets, Fair Value Disclosure	0	0
Financial liabilities:
Time deposits	634,856	390,463
Short-term Debt, Fair Value	484,849	264,779
Junior subordinated debentures	31,918	31,032
Company Determined Fair Value (Level 3) [Member]
Financial assets:
Debt Securities, Held-to-maturity, Fair Value	0	0
Servicing Assets, Fair Value Disclosure	4,124	4,412
Financial liabilities:
Time deposits	0	0
Short-term Debt, Fair Value	0	0
Junior subordinated debentures	0	0
Carrying Amount [Member]
Financial assets:
HTM debt securities	544,931	546,583
Servicing Assets, Fair Value Disclosure	2,274	2,458
Financial liabilities:
Time deposits	640,539	399,376
Short-term Debt, Fair Value	485,607	265,176
Junior subordinated debentures	44,331	44,331
Residential Portfolio Segment [Member]
Financial assets:
Loans receivable, net of allowance	1,488,248	1,494,707
Residential Portfolio Segment [Member] \| Readily Available Market Prices (Level 1) [Member]
Financial assets:
Loans receivable, net of allowance	0	0
Residential Portfolio Segment [Member] \| Observable Market Data (Level 2) [Member]
Financial assets:
Loans receivable, net of allowance	0	0
Residential Portfolio Segment [Member] \| Company Determined Fair Value (Level 3) [Member]
Financial assets:
Loans receivable, net of allowance	1,488,248	1,494,707
Residential Portfolio Segment [Member] \| Carrying Amount [Member]
Financial assets:
Loans receivable, net of allowance	1,753,124	1,691,177
Commercial real estate
Financial assets:
Loans receivable, net of allowance	1,540,327	1,550,379
Commercial real estate \| Readily Available Market Prices (Level 1) [Member]
Financial assets:
Loans receivable, net of allowance	0	0
Commercial real estate \| Observable Market Data (Level 2) [Member]
Financial assets:
Loans receivable, net of allowance	0	0
Commercial real estate \| Company Determined Fair Value (Level 3) [Member]
Financial assets:
Loans receivable, net of allowance	1,540,327	1,550,379
Commercial real estate \| Carrying Amount [Member]
Financial assets:
Loans receivable, net of allowance	1,653,435	1,605,279
Commercial
Financial assets:
Loans receivable, net of allowance	385,585	414,353
Commercial \| Readily Available Market Prices (Level 1) [Member]
Financial assets:
Loans receivable, net of allowance	0	0
Commercial \| Observable Market Data (Level 2) [Member]
Financial assets:
Loans receivable, net of allowance	0	0
Commercial \| Company Determined Fair Value (Level 3) [Member]
Financial assets:
Loans receivable, net of allowance	385,585	414,353
Commercial \| Carrying Amount [Member]
Financial assets:
Loans receivable, net of allowance	399,032	424,685
Home equity
Financial assets:
Loans receivable, net of allowance	233,025	237,967
Home equity \| Readily Available Market Prices (Level 1) [Member]
Financial assets:
Loans receivable, net of allowance	0	0
Home equity \| Observable Market Data (Level 2) [Member]
Financial assets:
Loans receivable, net of allowance	0	0
Home equity \| Company Determined Fair Value (Level 3) [Member]
Financial assets:
Loans receivable, net of allowance	233,025	237,967
Home equity \| Carrying Amount [Member]
Financial assets:
Loans receivable, net of allowance	238,124	232,203
Consumer
Financial assets:
Loans receivable, net of allowance	15,279	17,853
Consumer \| Readily Available Market Prices (Level 1) [Member]
Financial assets:
Loans receivable, net of allowance	0	0
Consumer \| Observable Market Data (Level 2) [Member]
Financial assets:
Loans receivable, net of allowance	0	0
Consumer \| Company Determined Fair Value (Level 3) [Member]
Financial assets:
Loans receivable, net of allowance	15,279	17,853
Consumer \| Carrying Amount [Member]
Financial assets:
Loans receivable, net of allowance	17,444	20,087
Fair Value, Measurements, Nonrecurring [Member] \| Company Determined Fair Value (Level 3) [Member] \| Impaired Loans Specifically Reserved [Member]
Financial liabilities:
Impaired Financing Receivable, Recorded Investment	$ 4,768	$ 69
Fair Value, Measurements, Nonrecurring [Member] \| Company Determined Fair Value (Level 3) [Member] \| Impaired Loans Specifically Reserved [Member] \| Measurement Input, Cost to Sell [Member] \| Valuation, Market Approach [Member]
Financial liabilities:
Impaired Loans Specifically Reserved, Measurement Input	7	0.18
Fixed Rate mortgage interest rate lock commitments \| Fair Value, Measurements, Recurring [Member]
Financial assets:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value	$ 215	$ 31
Fixed Rate mortgage interest rate lock commitments \| Fair Value, Measurements, Recurring [Member] \| Readily Available Market Prices (Level 1) [Member]
Financial assets:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value	0	0
Fixed Rate mortgage interest rate lock commitments \| Fair Value, Measurements, Recurring [Member] \| Observable Market Data (Level 2) [Member]
Financial assets:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value	215	31
Fixed Rate mortgage interest rate lock commitments \| Fair Value, Measurements, Recurring [Member] \| Company Determined Fair Value (Level 3) [Member]
Financial assets:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value	0	0
Forward delivery commitments \| Fair Value, Measurements, Recurring [Member]
Financial assets:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value	51	114
Forward delivery commitments \| Fair Value, Measurements, Recurring [Member] \| Readily Available Market Prices (Level 1) [Member]
Financial assets:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value	0
Forward delivery commitments \| Fair Value, Measurements, Recurring [Member] \| Observable Market Data (Level 2) [Member]
Financial assets:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value	51	$ 114
Forward delivery commitments \| Fair Value, Measurements, Recurring [Member] \| Company Determined Fair Value (Level 3) [Member]
Financial assets:
Interest Rate Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value	$ 0

Parent Company Financial Stat_3

Parent Company Financial Statements (Statements of Condition) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Investment in subsidiaries:
Other assets	$ 77,999	$ 76,993
Total assets	5,714,506	5,671,850
LIABILITIES AND SHAREHOLDERS' EQUITY
Accrued interest and other liabilities	92,144	84,136
Shareholders’ equity	495,064	451,278	$ 541,294	$ 529,314
Total liabilities and shareholders’ equity	5,714,506	5,671,850
Parent Company [Member]
ASSETS
Cash	35,219	40,076
Investment in subsidiaries:
Investment in subsidiary	508,674	460,753
Other assets	14,142	9,410
Total assets	558,035	510,286
LIABILITIES AND SHAREHOLDERS' EQUITY
Subordinated debentures	44,331	44,331
Accrued interest and other liabilities	18,640	14,660
Shareholders’ equity	495,064	451,279
Total liabilities and shareholders’ equity	558,035	510,286
Parent Company [Member] \| Related Party
Investment in subsidiaries:
Receivable from subsidiary	0	47
LIABILITIES AND SHAREHOLDERS' EQUITY
Accrued interest and other liabilities	$ 0	$ 16

Parent Company Financial Stat_4

Parent Company Financial Statements (Statements of Income) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Condensed Financial Statements, Captions [Line Items]
Dividend income from subsidiary	$ 1,061	$ 531	$ 412
Income tax benefit	(10,453)	(15,608)	(17,627)
Net Income	43,383	61,439	69,014
Parent Company [Member]
Condensed Financial Statements, Captions [Line Items]
Dividend income from subsidiary	22,500	31,700	41,700
Other income	0	19	7
Total operating income	22,500	31,719	41,707
Interest on borrowings	2,150	2,140	2,524
Fees to Bank	180	180	160
Other operating expenses	915	794	628
Total operating expenses	3,245	3,114	3,312
Income before equity in undistributed income of subsidiaries and income taxes	19,255	28,605	38,395
Equity in undistributed income of subsidiaries	23,389	32,129	29,869
Income before income tax expense	42,644	60,734	68,264
Income tax benefit	739	705	750
Net Income	$ 43,383	$ 61,439	$ 69,014

Parent Company Financial Stat_5

Parent Company Financial Statements (Statements of Cash Flows) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Operating Activities
Net Income	$ 43,383	$ 61,439	$ 69,014
(Increase) decrease in other assets	(9,193)	(4,063)	3,306
Net cash provided by operating activities	67,508	105,183	142,716
Investing Activities
Net cash used in investing activities	(7,029)	(487,722)	(649,093)
Financing Activities
Common stock repurchases	(2,000)	(10,240)	(10,090)
Repayment of subordinated debt	0	0	(15,000)
Cash dividends paid on common stock	(24,536)	(23,512)	(21,081)
Net cash (used in) provided by financing activities	(36,102)	237,341	581,228
Net increase (decrease) in cash, cash equivalents and restricted cash	24,377	(145,198)	74,851
Cash, cash equivalents and restricted cash at beginning of year	75,427	220,625	145,774
Cash, cash equivalents and restricted cash at end of year	99,804	75,427	220,625
Parent Company [Member]
Operating Activities
Net Income	43,383	61,439	69,014
Equity in undistributed income of subsidiaries	(23,389)	(32,129)	(29,869)
(Increase) decrease in other assets	(4,884)	9,219	4,244
Increase (decrease) in due to subsidiaries	31	(187)	202
Increase (decrease) in other liabilities	4,005	(1,051)	(558)
Net cash provided by operating activities	19,146	37,291	43,033
Financing Activities
Net proceeds from issuance of common stock	2,533	2,198	2,118
Common stock repurchases	(2,000)	(10,240)	(10,090)
Repayment of subordinated debt	0	0	(15,000)
Cash dividends paid on common stock	(24,536)	(23,512)	(21,081)
Net cash (used in) provided by financing activities	(24,003)	(31,554)	(44,053)
Net increase (decrease) in cash, cash equivalents and restricted cash	(4,857)	5,737	(1,020)
Cash, cash equivalents and restricted cash at beginning of year	40,076	34,339	35,359
Cash, cash equivalents and restricted cash at end of year	$ 35,219	$ 40,076	$ 34,339