Stifel Financial (SF) 10-Q7 Nov 232023 Q3 Quarterly reportFinancial data

Company Profile

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
Document and Entity Information - shares	Sep. 30, 2023	Nov. 03, 2023
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2023
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q3
Entity Registrant Name	STIFEL FINANCIAL CORP
Entity Central Index Key	0000720672
Current Fiscal Year End Date	--12-31
Entity File Number	001-09305
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	43-1273600
Entity Address, Address Line One	501 North Broadway
Entity Address, City or Town	St. Louis
Entity Address, State or Province	MO
Entity Address, Postal Zip Code	63102-2188
City Area Code	314
Local Phone Number	342-2000
Document Quarterly Report	true
Document Transition Report	false
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Common Stock [Member]
Document Information [Line Items]
Trading Symbol	SF
Title of 12(b) Security	Common Stock, $0.15 par value per share
Security Exchange Name	NYSE
Entity Common Stock, Shares Outstanding		101,995,978
Depository Shares, each representing 1/1,000th interest in a share of 6.25% Non-Cumulative Preferred Stock, Series B [Member]
Document Information [Line Items]
Trading Symbol	SF-PB
Title of 12(b) Security	Depository Shares, each representing 1/1,000th interest in a share of 6.25% Non-Cumulative Preferred Stock, Series B
Security Exchange Name	NYSE
Entity Common Stock, Shares Outstanding		6,400
Depository Shares, each representing 1/1,000th interest in a share of 6.125% Non-Cumulative Preferred Stock, Series C [Member]
Document Information [Line Items]
Trading Symbol	SF-PC
Title of 12(b) Security	Depository Shares, each representing 1/1,000th interest in a share of 6.125% Non-Cumulative Preferred Stock, Series C
Security Exchange Name	NYSE
Entity Common Stock, Shares Outstanding		9,000
Depository Shares, each representing 1/1,000th interest in a share of 4.50% Non-Cumulative Preferred Stock, Series D [Member]
Document Information [Line Items]
Trading Symbol	SF-PD
Title of 12(b) Security	Depository Shares, each representing 1/1,000th interest in a share of 4.50% Non-Cumulative Preferred Stock, Series D
Security Exchange Name	NYSE
Entity Common Stock, Shares Outstanding		12,000
Senior notes 5.20% due 2047 [Member]
Document Information [Line Items]
Trading Symbol	SFB
Title of 12(b) Security	5.20% Senior Notes due 2047
Security Exchange Name	NYSE
Entity Common Stock, Shares Outstanding		225,000,000

Consolidated Statements of Fina

Consolidated Statements of Financial Condition - USD ($) $ in Thousands		Sep. 30, 2023		Dec. 31, 2022
Assets
Cash and cash equivalents		$ 2,768,353		$ 2,199,985
Cash segregated for regulatory purposes		33,399		29,017
Receivables:
Brokerage clients, net		885,674		924,385
Brokers, dealers, and clearing organizations		363,008		418,091
Securities purchased under agreements to resell		412,367		348,162
Financial instruments owned, at fair value		1,056,745		731,752
Available-for-sale securities, at fair value		1,512,233	[1]	1,636,041
Held-to-maturity securities, at amortized cost	[2]	5,900,379		5,990,451
Loans:
Held for investment, net		20,292,553		20,465,092
Held for sale, at lower of cost or market		142,617		156,912
Investments, at fair value		91,154		99,376
Fixed assets, net		195,987		200,043
Operating lease right-of-use assets, net		786,496		775,949
Goodwill		1,399,129		1,326,548
Intangible assets, net		127,443		130,589
Loans and advances to financial advisors and other employees, net		678,059		654,112
Deferred tax assets, net		198,424		159,207
Other assets		1,033,557		950,412
Total assets		37,877,577		37,196,124
Payables:
Brokerage clients		704,484		770,336
Brokers, dealers, and clearing organizations		217,916		94,954
Drafts		77,432		102,212
Securities sold under agreements to repurchase		408,950		212,011
Bank deposits		27,594,358		27,117,111
Financial instruments sold, but not yet purchased, at fair value		578,290		454,817
Accrued compensation		448,311		677,376
Accounts payable and accrued expenses		1,429,882		1,264,282
Senior notes		1,115,360		1,114,554
Debentures to Stifel Financial Capital Trusts		60,000		60,000
Total liabilities		32,634,983		31,867,653
Stifel Financial Corp. shareholders' equity:
Preferred stock - $1 par value; authorized 3,000,000 shares; issued 27,400 shares		685,000		685,000
Common stock - $0.15 par value; authorized 194,000,000 shares; issued 111,662,225 and 111,662,034 shares, respectively		16,749		16,749
Additional paid-in-capital		1,885,424		1,928,069
Retained earnings		3,299,143		3,169,095
Accumulated other comprehensive loss		(134,159)		(117,960)
Treasury stock, at cost, 8,541,973 and 6,314,033 shares, respectively		(509,563)		(352,482)
Total equity		5,242,594		5,328,471
Total liabilities and equity		$ 37,877,577		$ 37,196,124

[1] Due to the immaterial amount of income recognized on tax-exempt securities, yields were not calculated on a tax-equivalent basis. Held-to-maturity securities are carried in the consolidated statements of financial condition at amortized cost, and the changes in the value of these securities, other than impairment charges, are not reported on the consolidated financial statements.

Consolidated Statements of Fi_2

Consolidated Statements of Financial Condition (Parenthetical) - $ / shares	Sep. 30, 2023	Dec. 31, 2022
Statement of Financial Position [Abstract]
Preferred stock, par value	$ 1	$ 1
Preferred stock, shares authorized	3,000,000	3,000,000
Preferred stock, shares issued	27,400	27,400
Common stock, par value	$ 0.15	$ 0.15
Common stock, shares authorized	194,000,000	194,000,000
Common stock, shares issued	111,662,255	111,662,034
Treasury Stock, Common, Shares	8,541,973	6,314,033

Consolidated Statements of Oper

Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Revenues:
Commissions	$ 165,075	$ 159,054	$ 499,983	$ 541,644
Principal transactions	114,841	118,379	336,063	403,252
Investment banking	146,887	221,858	525,591	747,779
Asset management	333,127	300,557	968,960	973,457
Interest	505,198	304,195	1,439,532	682,384
Other income	459	852	(940)	7,823
Total revenues	1,265,587	1,104,895	3,769,189	3,356,339
Interest expense	220,536	59,756	566,624	86,547
Net revenues	1,045,051	1,045,139	3,202,565	3,269,792
Non-interest expenses:
Compensation and benefits	613,287	611,870	1,880,144	1,938,270
Occupancy and equipment rental	84,396	77,230	251,140	232,507
Communications and office supplies	46,215	43,825	137,320	129,926
Commissions and floor brokerage	14,413	13,576	42,965	44,569
Provision for credit losses	9,992	6,453	22,736	27,478
Other operating expenses	167,319	86,416	367,563	245,623
Total non-interest expenses	935,622	839,370	2,701,868	2,618,373
Income from operations before income tax expense	109,429	205,769	500,697	651,419
Provision for income taxes	41,268	54,600	140,645	165,885
Net income	68,161	151,169	360,052	485,534
Preferred dividends	9,321	9,320	27,961	27,961
Net income available to common shareholders	$ 58,840	$ 141,849	$ 332,091	$ 457,573
Earnings per common share:
Basic	$ 0.55	$ 1.3	$ 3.09	$ 4.2
Diluted	0.52	1.21	2.91	3.89
Cash dividends declared per common share	$ 0.36	$ 0.3	$ 1.08	$ 0.9
Weighted-average number of common shares outstanding:
Basic	106,068	108,767	107,580	109,017
Diluted	113,195	117,218	114,170	117,649

Consolidated Statements Of Comp

Consolidated Statements Of Comprehensive Income (Unaudited) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Statement of Comprehensive Income [Abstract]
Net income		$ 68,161	$ 151,169	$ 360,052	$ 485,534
Other comprehensive income/(loss), net of tax:
Changes in unrealized losses on available-for-sale securities	[1],[2]	(26,172)	(54,290)	(17,113)	(189,820)
Foreign currency translation adjustment	[1]	(3,472)	20,692	914	41,461
Total other comprehensive loss, net of tax		(29,644)	(33,598)	(16,199)	(148,359)
Comprehensive income		$ 38,517	$ 117,571	$ 343,853	$ 337,175

[1] Net of tax benefit of $ 17.9 million and $ 12.1 million for the three months ended September 30, 2023 and 2022, respectively. Net of tax benefit of $ 6.3 million and $ 50.7 million for the nine months ended September 30, 2023 and 2022, respectively. There were no reclassifications to earnings for the three months ended September 30, 2023. Net of reclassifications to earnings of realized losses of $ 5.6 million for the nine months ended September 30, 2023. There were no reclassifications to earnings for the three and nine months ended September 30, 2022.

Consolidated Statements Of Co_2

Consolidated Statements Of Comprehensive Income (Parenthetical) (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Statement of Comprehensive Income [Abstract]
Other comprehensive income/(loss), tax	$ 17.9	$ 12.1	$ 6.3	$ 50.7
Reclassifications to earnings of realized gains/(losses) on available-for-sale securities	$ 0	$ 0	$ 5.6	$ 0

Consolidated Statements of Chan

Consolidated Statements of Changes in Shareholders' Equity (Unaudited) - USD ($)	Total		Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent	Treasury Stock, Common [Member]
Balance, beginning of period at Dec. 31, 2021			$ 685,000,000	$ 16,749,000	$ 1,922,382,000	$ 2,757,208,000	$ 4,718,000	$ (351,098,000)
Unit amortization, net of forfeitures					114,536,000
Issuance of preferred stock			0
Net income	$ 485,534,000					485,534,000
Dividends declared, Common						(111,831,000)
Dividends declared, Preferred						(27,961,000)
Distributions under employee plans					(122,467,000)	(52,523,000)		85,153,000
Common stock repurchased	(30,700,000)							(30,666,000)
Unrealized losses on securities, net of tax	(189,820,000)	[1],[2]					(189,820,000)
Foreign currency translation adjustment, net of tax	41,461,000	[1]					41,461,000
Other					(192,000)	1,167,000
Balance, end of period at Sep. 30, 2022	5,227,350,000		685,000,000	16,749,000	1,914,259,000	3,051,594,000	(143,641,000)	(296,611,000)
Balance, beginning of period at Jun. 30, 2022			685,000,000	16,749,000	1,884,455,000	2,948,280,000	(110,043,000)	(299,704,000)
Unit amortization, net of forfeitures					33,358,000
Issuance of preferred stock			0
Net income	151,169,000					151,169,000
Dividends declared, Common						(37,299,000)
Dividends declared, Preferred						(9,320,000)
Distributions under employee plans					(3,300,000)	(1,612,000)		3,093,000
Common stock repurchased	0							0
Unrealized losses on securities, net of tax	(54,290,000)	[1],[2]					(54,290,000)
Foreign currency translation adjustment, net of tax	20,692,000	[1]					20,692,000
Other					(254,000)	376,000
Balance, end of period at Sep. 30, 2022	5,227,350,000		685,000,000	16,749,000	1,914,259,000	3,051,594,000	(143,641,000)	(296,611,000)
Balance, beginning of period at Dec. 31, 2022	5,328,471,000		685,000,000	16,749,000	1,928,069,000	3,169,095,000	(117,960,000)	(352,482,000)
Unit amortization, net of forfeitures					113,426,000
Issuance of preferred stock			0
Net income	360,052,000					360,052,000
Dividends declared, Common						(130,800,000)
Dividends declared, Preferred						(27,961,000)
Distributions under employee plans					(156,080,000)	(73,069,000)		143,071,000
Common stock repurchased	(300,200,000)							(300,152,000)
Unrealized losses on securities, net of tax	(17,113,000)	[1],[2]					(17,113,000)
Foreign currency translation adjustment, net of tax	914,000	[1]					914,000
Other					9,000	1,826,000
Balance, end of period at Sep. 30, 2023	5,242,594,000		685,000,000	16,749,000	1,885,424,000	3,299,143,000	(134,159,000)	(509,563,000)
Balance, beginning of period at Jun. 30, 2023			685,000,000	16,749,000	1,856,578,000	3,286,777,000	(104,515,000)	(397,602,000)
Unit amortization, net of forfeitures					35,862,000
Issuance of preferred stock			0
Net income	68,161,000					68,161,000
Dividends declared, Common						(43,235,000)
Dividends declared, Preferred						(9,321,000)
Distributions under employee plans					(7,016,000)	(3,240,000)		6,849,000
Common stock repurchased	(118,800,000)							(118,810,000)
Unrealized losses on securities, net of tax	(26,172,000)	[1],[2]					(26,172,000)
Foreign currency translation adjustment, net of tax	(3,472,000)	[1]					(3,472,000)
Other					0	1,000
Balance, end of period at Sep. 30, 2023	$ 5,242,594,000		$ 685,000,000	$ 16,749,000	$ 1,885,424,000	$ 3,299,143,000	$ (134,159,000)	$ (509,563,000)

[1] Net of tax benefit of $ 17.9 million and $ 12.1 million for the three months ended September 30, 2023 and 2022, respectively. Net of tax benefit of $ 6.3 million and $ 50.7 million for the nine months ended September 30, 2023 and 2022, respectively. There were no reclassifications to earnings for the three months ended September 30, 2023. Net of reclassifications to earnings of realized losses of $ 5.6 million for the nine months ended September 30, 2023. There were no reclassifications to earnings for the three and nine months ended September 30, 2022.

Consolidated Statements of Ch_2

Consolidated Statements of Changes in Shareholders' Equity (Parenthetical) (Unaudited) - $ / shares	Sep. 30, 2023	Dec. 31, 2022	Sep. 30, 2022
Statement of Stockholders' Equity [Abstract]
Preferred stock, par value	$ 1	$ 1	$ 1
Common stock, par value	$ 0.15	$ 0.15	$ 0.15

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Cash Flows From Operating Activities:
Net income	$ 360,052	$ 485,534
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	43,124	36,250
Amortization of loans and advances to financial advisors and other employees	104,703	98,624
Amortization of premium on investment portfolio	7,444	9,795
Provision for credit losses and allowance for loans and advances to financial advisors and other employees	22,736	27,478
Amortization of intangible assets	13,872	14,966
Deferred income taxes	(33,022)	(15,690)
Stock-based compensation	106,237	103,281
(Gains)/losses on sale of investments	(2,290)	14,933
Other, net	2,141	4,883
Receivables:
Brokerage clients	38,711	(79,193)
Brokers, dealers, and clearing organizations	56,477	32,800
Securities purchased under agreements to resell	(64,205)	38,026
Financial instruments owned, including those pledged	(269,580)	159,318
Loans originated as held for sale	(614,254)	(513,195)
Proceeds from mortgages held for sale	626,663	503,284
Loans and advances to financial advisors and other employees	(130,665)	(105,431)
Other assets	(31,913)	(68,435)
Increase/(decrease) in operating liabilities, net of liabilities assumed:
Brokerage clients	(65,852)	(90,781)
Brokers, dealers, and clearing organizations	60,363	4,172
Drafts	(24,780)	(52,164)
Financial instruments sold, but not yet purchased	93,131	(118,436)
Other liabilities and accrued expenses	(74,940)	(190,216)
Net cash provided by operating activities	224,153	299,803
Cash Flows From Investing Activities:
Principal paydowns, calls, maturities, and sales of available-for-sale securities	112,928	287,460
Calls and principal paydowns of held-to-maturity securities	89,815	113,454
Sale or maturity of investments	15,694	12,761
Decrease/(increase) in loans held for investment, net	147,629	(4,075,687)
Payments for:
Purchase of fixed assets	(39,026)	(44,924)
Purchase of available-for-sale securities	(19,635)	(102,917)
Purchase of held-to-maturity securities	0	(754,306)
Purchase of investments	(15,272)	(13,450)
Acquisitions, net of cash received	(113,452)	(11,021)
Net cash provided by/(used in) investing activities	178,681	(4,588,630)
Cash Flows From Financing Activities:
Payment of contingent consideration	(6,045)	(11,303)
Increase/(decrease) in securities sold under agreements to repurchase	196,939	(127,769)
Increase in bank deposits, net	477,247	3,910,271
Increase in securities loaned	36,465	19,521
Tax payments related to shares withheld for stock-based compensation plans	(83,909)	(87,434)
Repurchase of common stock	(300,152)	(30,666)
Cash dividends on preferred stock	(27,961)	(27,961)
Cash dividends paid to common stock and equity-award holders	(123,582)	(100,538)
Net cash provided by financing activities	169,002	3,544,121
Effect of exchange rate changes on cash	914	41,461
Increase/(decrease) in cash, cash equivalents, and cash segregated for regulatory purposes	572,750	(703,245)
Cash, cash equivalents, and cash segregated for regulatory purposes at beginning of period	2,229,002	2,149,657
Cash, cash equivalents, and cash segregated for regulatory purposes at end of period	2,801,752	1,446,412
Supplemental disclosure of cash flow information:
Cash paid for income taxes, net of refunds	104,569	162,681
Cash paid for interest	575,121	103,100
Noncash financing activities:
Unit grants, net of forfeitures	$ 179,078	$ 188,359

Cash, Cash Equivalents, and Cas

Cash, Cash Equivalents, and Cash Restricted for Regulatory Purposes for Periods Presented in Consolidated Statements of Financial Condition - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022	Sep. 30, 2022	Dec. 31, 2021
Statement of Cash Flows [Abstract]
Cash and cash equivalents	$ 2,768,353	$ 2,199,985
Cash segregated for regulatory purposes	33,399	29,017
Total cash, cash equivalents, and cash segregated for regulatory purposes	$ 2,801,752	$ 2,229,002	$ 1,446,412	$ 2,149,657

Nature of Operations, Basis of

Nature of Operations, Basis of Presentation, and Summary of Significant Accounting Policies	9 Months Ended
	Sep. 30, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Nature of Operations, Basis of Presentation, and Summary of Significant Accounting Policies	NOTE 1 – Nature of Operations, Basis of Presentation, and Summary of Significant Accounting Policies Nature of Operations Stifel Financial Corp. (the “Company”), through its wholly owned subsidiaries, is principally engaged in retail brokerage; securities trading; investment banking; investment advisory; retail, consumer, and commercial banking; and related financial services. Our major geographic area of concentration is throughout the United States, with a growing presence in the United Kingdom, Europe, and Canada. Our company’s principal customers are individual investors, corporations, municipalities, and institutions. Basis of Presentation The consolidated financial statements include Stifel Financial Corp. and its wholly owned subsidiaries, principally Stifel, Nicolaus & Company, Incorporated (“Stifel”), Keefe, Bruyette & Woods, Inc., Stifel Bancorp, Inc. (“Stifel Bancorp”), Stifel Nicolaus Canada Inc. (“SNC”), and Stifel Nicolaus Europe Limited (“SNEL”). Unless otherwise indicated, the terms “we,” “us,” “our,” or “our company” in this report refer to Stifel Financial Corp. and its wholly owned subsidiaries. We have prepared the accompanying unaudited consolidated financial statements pursuant to the rules and regulations of the Securities and Exchange Commission (the “SEC”). Pursuant to these rules and regulations, we have omitted certain information and footnote disclosures we normally include in our annual consolidated financial statements prepared in accordance with U.S. generally accepted accounting principles. In management’s opinion, we have made all adjustments (consisting only of normal, recurring adjustments, except as otherwise noted) necessary to fairly present our financial position, results of operations and cash flows. Our interim period operating results do not necessarily indicate the results that may be expected for any other interim period or for the full fiscal year. These financial statements and accompanying notes should be read in conjunction with the consolidated financial statements and the notes thereto in our Annual Report on Form 10-K for the year ended December 31, 2022 on file with the SEC. Certain amounts from prior periods have been reclassified to conform to the current period’s presentation. The effect of these reclassifications on our company’s previously reported consolidated financial statements was not material. Consolidation Policies The consolidated financial statements include the accounts of Stifel Financial Corp. and its subsidiaries. All material intercompany balances and transactions have been eliminated in consolidation. We have investments or interests in other entities for which we must evaluate whether to consolidate by determining whether we have a controlling financial interest or are considered to be the primary beneficiary. Under our current consolidation policy we consolidate those entities where we have the power to direct the activities of the entity that most significantly impact the entity’s economic performance and the obligation to absorb losses of the entity or the rights to receive benefits from the entity that could potentially be significant to the entity. We determine whether we are the primary beneficiary of a variable interest entity (“VIE”) by performing an analysis of the VIE’s control structure, expected benefits and losses, and expected residual returns. This analysis includes a review of, among other factors, the VIE’s capital structure, contractual terms, which interests create or absorb benefits or losses, variability, related party relationships, and the design of the VIE. We reassess our evaluation of whether an entity is a VIE when certain reconsideration events occur. We reassess our determination of whether we are the primary beneficiary of a VIE on an ongoing basis based on current facts and circumstances. See Note 25 for additional information on VIEs.

New Accounting Pronouncements

New Accounting Pronouncements	9 Months Ended
New Accounting Pronouncements	Sep. 30, 2023
Accounting Standards Update and Change in Accounting Principle [Abstract]
New Accounting Pronouncements	NOTE 2 – New Accounting Pronouncements Recently Adopted Accounting Guidance Financial Instruments – Credit Losses In March 2022, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2022-02, “Financial Instruments – Credit Losses (ASC 326): Troubled Debt Restructurings (TDRs) and Vintage Disclosures,” which eliminates the accounting guidance for TDRs, now requiring an entity to determine whether a modification results in a new loan or a continuation of an existing loan, as well as expanding disclosures related to modifications and requires disclosure of current period gross write-offs of financing receivables within the vintage disclosures table. The accounting update is effective for interim and annual periods beginning after December 15, 2022 (January 1, 2023, for our company), and early adoption is permitted. The adoption of the accounting update did not have a material impact on our consolidated financial statements. Recently Issued Accounting Guidance Fair Value Measurement In June 2022, the FASB issued ASU 2022-03, “Fair Value Measurement of Equity Securities Subject to Contractual Sale Restrictions” (ASU 2022-03), an update to ASC Topic 820 – Fair Value Measurement. The amendments in ASU 2022-03 clarify that a contractual restriction on the sale of an equity security is not considered part of the unit of account of the equity security and, therefore, is not considered in measuring fair value. The amendments clarify that an entity cannot, as a separate unit of account, recognize and measure a contractual sale restriction. The amendments require new disclosures related to equity securities subject to contractual sale restrictions, including the fair value of such equity securities, the nature and remaining duration of the corresponding restrictions and any circumstances that could cause a lapse in the restrictions. The amendments are effective for annual reporting periods beginning after December 15, 2023 (January 1, 2024, for our company) and for the interim periods within those annual reporting periods. Early adoption is permitted, including in an interim period. We are currently evaluating the impact that the accounting update will have on our consolidated financial statements. Leases In March 2023, the FASB issued ASU 2023-01, “Leases (Topic 842): Common Control Arrangements,” which requires entities to classify and account for leases with related parties on the basis of legally enforceable terms and conditions of the arrangement. The accounting update is effective for interim and annual periods beginning after December 15, 2023 (January 1, 2024, for our company), and early adoption is permitted. We are currently evaluating the impact that the accounting update will have on our consolidated financial statements.

Receivables From and Payables t

Receivables From and Payables to Brokers, Dealers and Clearing Organizations	9 Months Ended
	Sep. 30, 2023
Due to and from Broker-Dealers and Clearing Organizations [Abstract]
Receivables From and Payables to Brokers, Dealers and Clearing Organizations	NOTE 3 – Receivables From and Payables to Brokers, Dealers, and Clearing Organizations Amounts receivable from brokers, dealers, and clearing organizations at September 30, 2023 and December 31, 2022, included (in thousands) : September 30, 2023 December 31, Deposits paid for securities borrowed $ 180,156 $ 219,052 Receivables from clearing organizations 171,303 186,800 Securities failed to deliver 11,549 12,239 $ 363,008 $ 418,091 Amounts payable to brokers, dealers, and clearing organizations at September 30, 2023 and December 31, 2022, included (in thousands) : September 30, 2023 December 31, Deposits received from securities loaned $ 104,570 $ 68,105 Securities failed to receive 80,231 12,385 Payable to clearing organizations 33,115 14,464 $ 217,916 $ 94,954 Deposits paid for securities borrowed approximate the market value of the securities. Securities failed to deliver and receive represent the contract value of securities that have not been delivered or received on settlement date.

Fair Value Measurements

Fair Value Measurements	9 Months Ended
Fair Value Measurements	Sep. 30, 2023
Fair Value Disclosures [Abstract]
Fair Value Measurements	NOTE 4 – Fair Value Measurements We measure certain financial assets and liabilities at fair value on a recurring basis, including financial instruments owned, available-for-sale securities, investments, financial instruments sold, but not yet purchased, and derivatives. We generally utilize third-party pricing services to value Level 1 and Level 2 available-for-sale investment securities, as well as certain derivatives designated as cash flow hedges. We review the methodologies and assumptions used by the third-party pricing services and evaluate the values provided, principally by comparison with other available market quotes for similar instruments and/or analysis based on internal models using available third-party market data. We may occasionally adjust certain values provided by the third-party pricing service when we believe, as the result of our review, that the adjusted price most appropriately reflects the fair value of the particular security. Following are descriptions of the valuation methodologies and key inputs used to measure financial assets and liabilities recorded at fair value. The descriptions include an indication of the level of the fair value hierarchy in which the assets or liabilities are classified. Financial Instruments Owned and Available-For-Sale Securities When available, the fair value of financial instruments is based on quoted prices in active markets and reported in Level 1. Level 1 financial instruments include highly liquid instruments with quoted prices, such as U.S. government securities, corporate fixed income securities, and equity securities listed in active markets. If quoted prices are not available for identical instruments, fair values are obtained from pricing services, broker quotes, or other model-based valuation techniques with observable inputs, such as the present value of estimated cash flows, and reported as Level 2. The nature of these financial instruments include instruments for which quoted prices are available but traded less frequently, instruments whose fair value has been derived using a model where inputs to the model are directly observable in the market, or can be derived principally from or corroborated by observable market data, and instruments that are fair valued using other financial instruments, the parameters of which can be directly observed. Level 2 financial instruments include U.S. government agency securities, mortgage-backed securities, fixed income and equity securities infrequently traded, state and municipal securities, asset-backed securities, and non-agency mortgage-backed securities and sovereign debt securities, included in other in the table below. We have identified Level 3 financial instruments to include certain asset-backed securities and syndicated loans, included in other in the table below. Level 3 financial instruments have little to no pricing observability as of the report date. These financial instruments do not have active two-way markets and are measured using management’s best estimate of fair value, where the inputs into the determination of fair value require significant management judgment or estimation. Investments Investments carried at fair value primarily include corporate equity securities, auction-rate securities (“ARS”), and private company investments. Corporate equity securities valued based on quoted prices in active markets are reported in Level 1. Corporate equity securities that have little to no pricing observability are reported in Level 3. ARS are primarily valued based upon our expectations of issuer redemptions and using internal discounted cash flow models that utilize unobservable inputs. ARS are reported as Level 3 assets. Private company investments are primarily valued based upon internally developed models. These valuations require significant management judgment due to the absence of quoted market prices, the inherent lack of liquidity, and their long-term nature. Typically, the initial costs of these investments are considered to represent fair market value, as such amounts are negotiated between willing market participants. Private company investments are primarily reported as Level 3 assets. Investments at fair value include investments in funds, including certain money market funds that are measured at net asset value (“NAV”). The Company uses NAV to measure the fair value of its fund investments when (i) the fund investment does not have a readily determinable fair value and (ii) the NAV of the investment fund is calculated in a manner consistent with the measurement principles of investment company accounting, including measurement of the underlying investments at fair value. The Company’s investments in funds measured at NAV include partnership interests, mutual funds, money market funds, and private equity funds. Private equity funds primarily invest in a broad range of industries worldwide in a variety of situations, including leveraged buyouts, recapitalizations, growth investments and distressed investments. The private equity funds are primarily closed-end funds in which the Company’s investments are generally not eligible for redemption. Distributions will be received from these funds as the underlying assets are liquidated or distributed. The general and limited partnership interests in investment partnerships were primarily valued based upon NAVs received from third-party fund managers. The various partnerships are investment companies, which record their underlying investments at fair value based on fair value policies established by management of the underlying fund. Fair value policies at the underlying fund generally require the funds to utilize pricing/valuation information, including independent appraisals, from third-party sources. However, in some instances, current valuation information for illiquid securities or securities in markets that are not active may not be available from any third-party source or fund management may conclude that the valuations that are available from third-party sources are not reliable. In these instances, fund management may perform model-based analytical valuations that may be used as an input to value these investments. The table below presents the fair value of our investments in, and unfunded commitments to, funds that are measured at NAV as of September 30, 2023 and December 31, 2022 (in thousands) : September 30, 2023 December 31, 2022 Fair value of investments Unfunded commitments Fair value of investments Unfunded commitments Partnership interests $ 22,413 $ 7,056 $ 18,817 $ 9,853 Mutual funds 3,278 — 4,728 — Money market funds 1,870 — 1,650 — Private equity funds 407 1,181 417 1,181 Total $ 27,968 $ 8,237 $ 25,612 $ 11,034 Financial Instruments Sold, But Not Yet Purchased Financial instruments sold, but not purchased, recorded at fair value based on quoted prices in active markets and other observable market data include highly liquid instruments with quoted prices, such as U.S. government securities, and fixed income and equity securities listed in active markets, which are reported as Level 1. If quoted prices are not available, fair values are obtained from pricing services, broker quotes, or other model-based valuation techniques with observable inputs, such as the present value of estimated cash flows, and reported as Level 2. The nature of these financial instruments include instruments for which quoted prices are available but traded less frequently, instruments whose fair value has been derived using a model where inputs to the model are directly observable in the market, or can be derived principally from or corroborated by observable market data, and instruments that are fair valued using other financial instruments, the parameters of which can be directly observed. Level 2 financial instruments include U.S. government agency securities, agency mortgage-backed securities not actively traded, fixed income securities, and asset-backed securities and state and municipal securities, included in other in the table below. We have identified Level 3 financial instruments to include syndicated loans, included in other in the table below. Level 3 financial instruments have little to no pricing observability as of the report date. These financial instruments do not have active two-way markets and are measured using management’s best estimate of fair value, where the inputs into the determination of fair value require significant management judgment or estimation. Derivatives Derivatives are valued using quoted market prices for identical instruments when available or observable inputs from forward and futures yield curves. The valuation models used require market observable inputs, including contractual terms, market prices, yield curves, credit curves, and measures of volatility. We have classified our derivatives as Level 2. The counterparties to most of our company’s derivative transactions represent regulated banks, bank holding companies, and derivative clearing houses. Management has determined that the counterparty credit risk associated with its derivative transactions is not significant. Accordingly, the recorded fair values for these transactions have not been adjusted to reflect counterparty credit risk. Assets and liabilities measured at fair value on a recurring basis as of September 30, 2023, are presented below (in thousands) : September 30, 2023 Total Level 1 Level 2 Level 3 Financial instruments owned: U.S. government securities $ 10,479 $ 10,479 $ — $ — U.S. government agency securities 158,086 — 158,086 — Agency mortgage-backed securities 199,294 — 199,294 — Asset-backed securities 63,046 — 61,377 1,669 Corporate securities: Fixed income securities 321,842 197 321,645 — Equity securities 43,091 42,817 274 — State and municipal securities 163,139 — 163,139 — Other (1) 97,768 — 9,251 88,517 Total financial instruments owned 1,056,745 53,493 913,066 90,186 Available-for-sale securities: U.S. government agency securities 2,135 — 2,135 — State and municipal securities 2,294 — 2,294 — Mortgage-backed securities: Agency 715,250 — 715,250 — Commercial 65,695 — 65,695 — Non-agency 332 — 332 — Corporate fixed income securities 537,850 — 537,850 — Asset-backed securities 188,677 — 188,677 — Total available-for-sale securities 1,512,233 — 1,512,233 — Investments: Corporate equity securities 24,877 10,888 2,111 11,878 Auction rate securities 783 — — 783 Other (2) 39,396 71 115 39,210 Investments in funds and partnerships measured at NAV 26,098 Total investments 91,154 10,959 2,226 51,871 Cash equivalents measured at NAV 1,870 Derivative contracts (3) 166,038 — 166,038 — $ 2,828,040 $ 64,452 $ 2,593,563 $ 142,057 (1) Includes syndicated loans and non-agency mortgage-backed securities. (2) Primarily includes private company investments. (3) Included in other assets in the consolidated statements of financial condition. September 30, 2023 Total Level 1 Level 2 Level 3 Liabilities: Financial instruments sold, but not yet purchased: U.S. government securities $ 334,630 $ 334,630 $ — $ — U.S. government agency securities 5,439 — 5,439 — Agency mortgage-backed securities 70,344 — 70,344 — Corporate securities: Fixed income securities 135,080 — 135,080 — Equity securities 20,114 20,114 — — Other (4) 12,683 — 6,974 5,709 Total financial instruments sold, but not yet purchased 578,290 354,744 217,837 5,709 Derivative contracts (5) 166,015 — 166,015 — $ 744,305 $ 354,744 $ 383,852 $ 5,709 (4) Includes asset-backed securities and syndicated loans. (5) Included in accounts payable and accrued expenses in the consolidated statements of financial condition. Assets and liabilities measured at fair value on a recurring basis as of December 31, 2022, are presented below (in thousands) : December 31, 2022 Total Level 1 Level 2 Level 3 Financial instruments owned: U.S. government securities $ 38,956 $ 38,956 $ — $ — U.S. government agency securities 73,608 — 73,608 — Agency mortgage-backed securities 172,642 — 172,642 — Asset-backed securities 8,270 — 6,091 2,179 Corporate securities: Fixed income securities 202,169 689 201,480 — Equity securities 38,129 37,383 746 — State and municipal securities 126,237 — 126,237 — Other (1) 71,741 — 1,853 69,888 Total financial instruments owned 731,752 77,028 582,657 72,067 Available-for-sale securities: U.S. government agency securities 2,148 — 2,148 — State and municipal securities 2,351 — 2,351 — Mortgage-backed securities: Agency 791,022 — 791,022 — Commercial 66,113 — 66,113 — Non-agency 388 — 388 — Corporate fixed income securities 566,294 — 566,294 — Asset-backed securities 207,725 — 207,725 — Total available-for-sale securities 1,636,041 — 1,636,041 — Investments: Corporate equity securities 23,597 9,928 1,791 11,878 Auction rate securities 14,681 — — 14,681 Other (2) 37,136 117 45 36,974 Investments in funds and partnerships measured at NAV 23,962 Total investments 99,376 10,045 1,836 63,533 Cash equivalents measured at NAV 1,650 Derivative contracts (3) 142,042 — 142,042 — $ 2,610,861 $ 87,073 $ 2,362,576 $ 135,600 (1) Includes syndicated loans, non-agency mortgage-backed securities, and sovereign debt. (2) Primarily includes private company investments. (3) Included in other assets in the consolidated statements of financial condition. December 31, 2022 Total Level 1 Level 2 Level 3 Liabilities: Financial instruments sold, but not yet purchased: U.S. government securities $ 254,265 $ 254,265 $ — $ — U.S. government agency securities 3,971 — 3,971 — Agency mortgage-backed securities 44,793 — 44,793 — Corporate securities: Fixed income securities 134,381 88 134,293 — Equity securities 11,590 11,590 — — Other (4) 5,817 — 36 5,781 Total financial instruments sold, but not yet purchased 454,817 265,943 183,093 5,781 Derivative contracts (5) 142,028 — 142,028 — $ 596,845 $ 265,943 $ 325,121 $ 5,781 (4) Includes syndicated loans and state and municipal securities. (5) Included in accounts payable and accrued expenses in the consolidated statements of financial condition. The following table summarizes the changes in fair value associated with Level 3 financial instruments during the three months ended September 30, 2023 (in thousands) : Three Months Ended September 30, 2023 Financial instruments owned Investments Asset-Backed Securities Syndicated Loans Corporate Equity Securities Auction Rate Other Balance at June 30, 2023 $ 1,979 $ 105,541 $ 11,878 $ 14,683 $ 37,342 Unrealized gains/(losses) — ( 158 ) — — 368 Realized gains/(losses) 502 ( 1,323 ) — ( 232 ) — Purchases — 13,909 — — 1,500 Sales — ( 26,869 ) — — — Redemptions ( 812 ) ( 2,583 ) — ( 13,668 ) — Net change ( 310 ) ( 17,024 ) — ( 13,900 ) 1,868 Balance at September 30, 2023 $ 1,669 $ 88,517 $ 11,878 $ 783 $ 39,210 The following table summarizes the change in fair value associated with Level 3 financial instruments during the nine months ended September 30, 2023 (in thousands): Nine Months Ended September 30, 2023 Financial instruments owned Investments Asset-Backed Securities Syndicated Loans Corporate Equity Securities Auction Rate Other Balance at December 31, 2022 $ 2,179 $ 69,888 $ 11,878 $ 14,681 $ 36,974 Unrealized gains/(losses) — ( 72 ) — 2 736 Realized gains/(losses) 728 ( 1,396 ) — ( 232 ) — Purchases — 68,669 — — 1,500 Sales — ( 31,438 ) — — — Redemptions ( 1,238 ) ( 17,134 ) — ( 13,668 ) — Net change ( 510 ) 18,629 — ( 13,898 ) 2,236 Balance at September 30, 2023 $ 1,669 $ 88,517 $ 11,878 $ 783 $ 39,210 The results included in the tables above are only a component of the overall investment strategies of our company. The tables above do not present Level 1 or Level 2 valued assets or liabilities. The changes in unrealized gains/(losses) recorded in earnings for the three and nine months ended September 30, 2023, relating to Level 3 assets still held at September 30, 2023, were immaterial. The fair value of certain Level 3 assets was determined using various methodologies, as appropriate, including third-party pricing vendors and broker quotes. These inputs are evaluated for reasonableness through various procedures, including due diligence reviews of third-party pricing vendors, variance analyses, consideration of current market environment, and other analytical procedures. The fair value for our auction rate securities was determined using an income approach based on an internally developed discounted cash flow model. The discounted cash flow model utilizes two significant unobservable inputs: discount rate and workout period. Significant increases in any of these inputs in isolation would result in a significantly lower fair value. On an ongoing basis, management verifies the fair value by reviewing the appropriateness of the discounted cash flow model and its significant inputs. Fair Value of Financial Instruments The following reflects the fair value of financial instruments as of September 30, 2023 and December 31, 2022, whether or not recognized in the consolidated statements of financial condition at fair value (in thousands) . September 30, 2023 December 31, 2022 Carrying Estimated Carrying Estimated Financial assets: Cash and cash equivalents $ 2,768,353 $ 2,768,353 $ 2,199,985 $ 2,199,985 Cash segregated for regulatory purposes 33,399 33,399 29,017 29,017 Securities purchased under agreements to resell 412,367 412,367 348,162 348,162 Financial instruments owned 1,056,745 1,056,745 731,752 731,752 Available-for-sale securities 1,512,233 1,512,233 1,636,041 1,636,041 Held-to-maturity securities 5,900,379 5,811,600 5,990,451 5,738,418 Bank loans 20,292,553 19,353,782 20,465,092 19,752,043 Loans held for sale 142,617 142,617 156,912 156,912 Investments 91,154 91,154 99,376 99,376 Derivative contracts (1) 166,038 166,038 142,042 142,042 Financial liabilities: Securities sold under agreements to repurchase $ 408,950 $ 408,950 $ 212,011 $ 212,011 Bank deposits 27,594,358 25,358,517 27,117,111 24,274,224 Financial instruments sold, but not yet purchased 578,290 578,290 454,817 454,817 Senior notes 1,115,360 1,020,868 1,114,554 1,016,755 Debentures to Stifel Financial Capital Trusts 60,000 58,262 60,000 53,385 Derivative contracts (2) 166,015 166,015 142,028 142,028 (1) Included in other assets in the consolidated statements of financial condition. (2) Included in accounts payable and accrued expenses in the consolidated statements of financial condition. The following tables present the estimated fair values of financial instruments not measured at fair value on a recurring basis as of September 30, 2023 and December 31, 2022 (in thousands) : September 30, 2023 Total Level 1 Level 2 Level 3 Financial assets: Cash $ 2,766,483 $ 2,766,483 $ — $ — Cash segregated for regulatory purposes 33,399 33,399 — — Securities purchased under agreements to resell 412,367 — 412,367 — Held-to-maturity securities 5,811,600 — 5,717,202 94,398 Bank loans 19,353,782 — 19,353,782 — Loans held for sale 142,617 — 142,617 — Financial liabilities: Securities sold under agreements to repurchase $ 408,950 $ — $ 408,950 $ — Bank deposits 25,358,517 — 25,358,517 — Senior notes 1,020,868 1,020,868 — — Debentures to Stifel Financial Capital Trusts 58,262 — — 58,262 December 31, 2022 Total Level 1 Level 2 Level 3 Financial assets: Cash $ 2,198,335 $ 2,198,335 $ — $ — Cash segregated for regulatory purposes 29,017 29,017 — — Securities purchased under agreements to resell 348,162 218,515 129,647 — Held-to-maturity securities 5,738,418 — 5,624,042 114,376 Bank loans 19,752,043 — 19,752,043 — Loans held for sale 156,912 — 156,912 — Financial liabilities: Securities sold under agreements to repurchase $ 212,011 $ — $ 212,011 $ — Bank deposits 24,274,224 — 24,274,224 — Senior notes 1,016,755 1,016,755 — — Debentures to Stifel Financial Capital Trusts 53,385 — — 53,385 The following, as supplemented by the discussion above, describes the valuation techniques used in estimating the fair value of our financial instruments as of September 30, 2023 and December 31, 2022. Financial Assets Securities Purchased Under Agreements to Resell Securities purchased under agreements to resell are collateralized financing transactions that are recorded at their contractual amounts plus accrued interest. The carrying values at September 30, 2023 and December 31, 2022 approximate fair value due to their short-term nature. Held-to-Maturity Securities Securities held to maturity are recorded at amortized cost based on our company’s positive intent and ability to hold these securities to maturity. Securities held to maturity include asset-backed securities, consisting of collateralized loan obligation securities and student loan ARS. The estimated fair value, included in the above table, is determined using several factors; however, primary weight is given to discounted cash flow modeling techniques that incorporated an estimated discount rate based upon recent observable debt security issuances with similar characteristics. Bank Loans The fair values of mortgage loans and commercial loans were estimated using a discounted cash flow method, a form of the income approach. Discount rates were determined considering rates at which similar portfolios of loans, with similar remaining maturities, would be made and considering liquidity spreads applicable to each loan portfolio based on the secondary market. Loans Held for Sale Loans held for sale consist of fixed-rate and adjustable-rate residential real estate mortgage loans intended for sale. Loans held for sale are stated at lower of cost or market value. Market value is determined based on prevailing market prices for loans with similar characteristics or on sale contract prices. Financial Liabilities Securities Sold Under Agreements to Repurchase Securities sold under agreements to repurchase are collateralized financing transactions that are recorded at their contractual amounts plus accrued interest. The carrying values at September 30, 2023 and December 31, 2022 approximate fair value due to the short-term nature. Bank Deposits The fair value of interest-bearing deposits, including certificates of deposits, demand deposits, savings, and checking accounts, was calculated by discounting the future cash flows using discount rates based on the replacement cost of funding of similar structures and terms. Senior Notes The fair value of our senior notes is estimated based upon quoted market prices. Debentures to Stifel Financial Capital Trusts The fair value of our trust preferred securities is based on the discounted value of contractual cash flows. We have assumed a discount rate based on similar type debt instruments. These fair value disclosures represent our best estimates based on relevant market information and information about the financial instruments. Fair value estimates are based on judgments regarding future expected losses, current economic conditions, risk characteristics of the various instruments, and other factors. These estimates are subjective in nature and involve uncertainties and matters of significant judgment and, therefore, cannot be determined with precision. Changes in the above methodologies and assumptions could significantly affect the estimates.

Financial Instruments Owned and

Financial Instruments Owned and Financial Instruments Sold, But Not Yet Purchased	9 Months Ended
	Sep. 30, 2023
Investments, Debt and Equity Securities [Abstract]
Financial Instruments Owned and Financial Instruments Sold, But Not Yet Purchased	NOTE 5 – Financial Instruments Owned and Financial Instruments Sold, But Not Yet Purchased The components of financial instruments owned and financial instruments sold, but not yet purchased, at September 30, 2023 and December 31, 2022 are as follows (in thousands) : September 30, 2023 December 31, Financial instruments owned: U.S. government securities $ 10,479 $ 38,956 U.S. government agency securities 158,086 73,608 Agency mortgage-backed securities 199,294 172,642 Asset-backed securities 63,046 8,270 Corporate securities: Fixed income securities 321,842 202,169 Equity securities 43,091 38,129 State and municipal securities 163,139 126,237 Other (1) 97,768 71,741 $ 1,056,745 $ 731,752 Financial instruments sold, but not yet purchased: U.S. government securities $ 334,630 $ 254,265 U.S. government agency securities 5,439 3,971 Agency mortgage-backed securities 70,344 44,793 Corporate securities: Fixed income securities 135,080 134,381 Equity securities 20,114 11,590 Other (2) 12,683 5,817 $ 578,290 $ 454,817 (1) Includes syndicated loans, non-agency mortgage-backed securities, and sovereign debt. (2) Includes asset-backed securities, syndicated loans, and state and municipal securities. At September 30, 2023 and December 31, 2022, financial instruments owned in the amount of $ 418.8 million and $ 218.9 million, respectively, were pledged as collateral for our repurchase agreements and short-term borrowings. Our financial instruments owned are presented on a trade-date basis in the consolidated statements of financial condition. Financial instruments sold, but not yet purchased, represent obligations of our company to deliver the specified security at the contracted price, thereby creating a liability to purchase the security in the market at prevailing prices in future periods. We are obligated to acquire the securities sold short at prevailing market prices in future periods, which may exceed the amount reflected in the consolidated statements of financial condition.

Available-for-Sale and Held-to-

Available-for-Sale and Held-to-Maturity Securities	9 Months Ended
Available-for-Sale and Held-to-Maturity Securities	Sep. 30, 2023
Investments, Debt and Equity Securities [Abstract]
Available-for-Sale and Held-to-Maturity Securities	NOTE 6 – Available-for-Sale and Held-to-Maturity Securities The following tables provide a summary of the amortized cost and fair values of the available-for-sale securities and held-to-maturity securities at September 30, 2023 and December 31, 2022 (in thousands) : September 30, 2023 Amortized Gross (1) Gross (1) Fair Value Available-for-sale securities U.S. government agency securities $ 2,368 $ — $ ( 233 ) $ 2,135 State and municipal securities 2,350 — ( 56 ) 2,294 Mortgage-backed securities: Agency 876,007 — ( 160,757 ) 715,250 Commercial 70,563 — ( 4,868 ) 65,695 Non-agency 351 — ( 19 ) 332 Corporate fixed income securities 618,164 5 ( 80,319 ) 537,850 Asset-backed securities 192,936 — ( 4,259 ) 188,677 $ 1,762,739 $ 5 $ ( 250,511 ) $ 1,512,233 Held-to-maturity securities (2) Asset-backed securities $ 5,900,379 $ 5,476 $ ( 94,255 ) $ 5,811,600 December 31, 2022 Amortized Gross (1) Gross (1) Fair Value Available-for-sale securities U.S. government agency securities $ 2,345 $ 6 $ ( 203 ) $ 2,148 State and municipal securities 2,350 1 — 2,351 Mortgage-backed securities: Agency 921,676 — ( 130,654 ) 791,022 Commercial 71,462 — ( 5,349 ) 66,113 Non-agency 442 — ( 54 ) 388 Corporate fixed income securities 643,379 18 ( 77,103 ) 566,294 Asset-backed securities 221,565 126 ( 13,966 ) 207,725 $ 1,863,219 $ 151 $ ( 227,329 ) $ 1,636,041 Held-to-maturity securities (2) Asset-backed securities $ 5,990,451 $ 3,213 $ ( 255,246 ) $ 5,738,418 (1) Unrealized gains/(losses) related to available-for-sale securities are reported in accumulated other comprehensive income. (2) Held-to-maturity securities are carried in the consolidated statements of financial condition at amortized cost, and the changes in the value of these securities, other than impairment charges, are not reported on the consolidated financial statements. We are required to evaluate our available-for-sale and held-to-maturity debt securities for any expected losses with recognition of an allowance for credit losses, when applicable. At September 30, 2023, we did no t have an allowance for credit losses recorded on our investment portfolio. Accrued interest receivable for our investment portfolio at September 30, 2023 and December 31, 2022 was $ 94.8 million and $ 82.3 million, respectively, and is reported in other assets in the consolidated statements of financial condition. We do not include reserves for interest receivable in the measurement of the allowance for credit losses. There were no sales of available-for-sale securities during the three months ended September 30, 2023. During the nine months ended September 30, 2023, we received proceeds of $ 10.0 million from the sale of available-for-sale securities, which resulted in a realized loss of $ 7.6 million. During the three and nine months ended September 30, 2022, we received proceeds of $ 80.0 million from the sale of available-for-sale securities, which resulted in a realized gain of $ 0.1 million. The table below summarizes the amortized cost and fair values of our securities by contractual maturity at September 30, 2023 and December 31, 2022 (in thousands) . Expected maturities may differ significantly from contractual maturities, as issuers may have the right to call or prepay obligations with or without call or prepayment penalties. September 30, 2023 December 31, 2022 Amortized Fair Value Amortized Fair Value Available-for-sale securities Within one year $ 86,971 $ 85,380 $ 16,047 $ 15,877 After one year through three years 206,234 191,070 185,012 178,776 After three years through five years 38,502 32,679 123,696 108,707 After five years through ten years 456,440 386,538 442,055 380,362 After ten years 974,592 816,566 1,096,409 952,319 $ 1,762,739 $ 1,512,233 $ 1,863,219 $ 1,636,041 Held-to-maturity securities After five years through ten years $ 2,765,980 $ 2,725,890 $ 2,413,239 $ 2,323,608 After ten years 3,134,399 3,085,710 3,577,212 3,414,810 $ 5,900,379 $ 5,811,600 $ 5,990,451 $ 5,738,418 The maturities of our available-for-sale (fair value) and held-to-maturity (amortized cost) securities at September 30, 2023, are as follows ( in thousands ): Within 1 1-5 Years 5-10 Years After 10 Total Available-for-sale securities (1) U.S. government agency securities $ — $ 2,135 $ — $ — $ 2,135 State and municipal securities — 2,294 — — 2,294 Mortgage-backed securities: Agency — 295 92,085 622,870 715,250 Commercial — — — 65,695 65,695 Non-agency — — 332 — 332 Corporate fixed income securities 85,380 219,025 233,445 — 537,850 Asset-backed securities — — 60,676 128,001 188,677 $ 85,380 $ 223,749 $ 386,538 $ 816,566 $ 1,512,233 Held-to-maturity securities Asset-backed securities $ — $ — $ 2,765,980 $ 3,134,399 $ 5,900,379 (1) Due to the immaterial amount of income recognized on tax-exempt securities, yields were not calculated on a tax-equivalent basis. At September 30, 2023 and December 31, 2022, securities of $ 721.0 million and $ 796.2 million, respectively, were pledged at the Federal Home Loan Bank as collateral for borrowings and letters of credit obtained to secure public deposits. At September 30, 2023 and December 31, 2022, securities of $ 1.3 billion and $ 1.3 billion, respectively, were pledged with the Federal Reserve discount window. The following table shows the gross unrealized losses and fair value of the Company’s investment securities with unrealized losses, aggregated by investment category and length of time the individual investment securities have been in continuous unrealized loss positions, at September 30, 2023 (in thousands) : Less than 12 months 12 months or more Total Gross Fair Value Gross Fair Value Gross Fair Value Available-for-sale securities U.S. government agency securities $ ( 8 ) $ 427 $ ( 225 ) $ 1,708 $ ( 233 ) $ 2,135 State and municipal securities ( 56 ) 2,294 — — ( 56 ) 2,294 Mortgage-backed securities: Agency ( 1,228 ) 24,100 ( 159,529 ) 691,150 ( 160,757 ) 715,250 Commercial — — ( 4,868 ) 65,695 ( 4,868 ) 65,695 Non-agency — — ( 19 ) 332 ( 19 ) 332 Corporate fixed income securities ( 235 ) 6,438 ( 80,084 ) 528,914 ( 80,319 ) 535,352 Asset-backed securities ( 1,649 ) 64,008 ( 2,610 ) 124,669 ( 4,259 ) 188,677 $ ( 3,176 ) $ 97,267 $ ( 247,335 ) $ 1,412,468 $ ( 250,511 ) $ 1,509,735 At September 30, 2023, the amortized cost of 284 securities classified as available for sale exceeded their fair value by $ 250.5 million, of which $ 247.3 million related to investment securities that had been in a loss position for 12 months or longer. The total fair value of these investments at September 30, 2023, was $ 1.5 billion, which was 99.8 % of our available-for-sale portfolio. Credit Quality Indicators The Company uses Moody credit ratings as the primary credit quality indicator for its held-to-maturity debt securities. Each security is evaluated at least quarterly. The indicators represent the rating for debt securities, as of the date presented, based on the most recent assessment performed. The following table shows the amortized cost of our held-to-maturity securities by credit quality indicator at September 30, 2023 (in thousands) : AAA AA A C Total Held-to-maturity securities Asset-backed securities $ 1,156,155 $ 4,737,652 $ 5,000 $ 1,572 $ 5,900,379

Bank Loans

Bank Loans	9 Months Ended
Bank Loans	Sep. 30, 2023
Receivables [Abstract]
Bank Loans	NOTE 7 – Bank Loans Our loan portfolio consists primarily of the following segments: Commercial and industrial (C&I). C&I loans primarily include commercial and industrial lending used for general corporate purposes, working capital and liquidity, and “event-driven.” “Event-driven” loans support client merger, acquisition or recapitalization activities. C&I lending is structured as revolving lines of credit, letter of credit facilities, term loans and bridge loans. Risk factors considered in determining the allowance for corporate loans include the borrower’s financial strength, seniority of the loan, collateral type, leverage, volatility of collateral value, debt cushion, and covenants. Fund banking. Fund banking loans primarily include capital call lines of credit, also known as subscription lines of credit. These credit facilities are used by closed-end private investment funds (“Fund”) that have raised capital commitments from limited partners to effectively manage the Fund’s cash and bridge timing between the Fund’s investments and capital calls. The lines of credit are collateralized by a pledge of the limited partner’s contractually callable capital and the general partner’s right to call such capital as permitted in the Fund’s partnership agreement. Securities-based loans. Securities-based loans allow clients to borrow money against the value of qualifying securities for any suitable purpose other than purchasing, trading, or carrying securities or refinancing margin debt. The majority of consumer loans are structured as revolving lines of credit and letter of credit facilities and are primarily offered through Stifel’s Pledged Asset (“SPA”) program. The allowance methodology for securities-based lending considers the collateral type underlying the loan, including the liquidity and trading volume of the collateral, position concentration and other borrower specific factors such as personal guarantees. Real Estate. Real estate loans include residential real estate non-conforming loans, residential real estate conforming loans, commercial real estate, and home equity lines of credit. The allowance methodology related to real estate loans considers several factors, including, but not limited to, loan-to-value ratio, FICO score, home price index, delinquency status, credit limits, and utilization rates. Construction and land. Short-term loans used to finance the development of a real estate project. Other. Other loans include consumer and credit card lending. The following table presents the balance and associated percentage of each major loan category in our bank loan portfolio at September 30, 2023 and December 31, 2022 (in thousands, except percentages) : September 30, 2023 December 31, 2022 Balance Percent Balance Percent Residential real estate $ 7,957,027 38.9 % $ 7,371,671 35.8 % Commercial and industrial 4,367,671 21.4 4,897,176 23.8 Fund banking 4,114,889 20.1 4,182,641 20.3 Securities-based loans 2,317,631 11.3 2,724,551 13.2 Construction and land 851,709 4.2 593,191 2.9 Commercial real estate 670,907 3.3 675,599 3.3 Home equity lines of credit 123,995 0.6 107,136 0.5 Other 48,560 0.2 50,593 0.2 Gross bank loans 20,452,389 100.0 % 20,602,558 100.0 % Loans in process ( 8,509 ) ( 3,526 ) Unamortized loan fees, net ( 15,530 ) ( 22,287 ) Allowance for loan losses ( 135,797 ) ( 111,653 ) Loans held for investment, net $ 20,292,553 $ 20,465,092 At September 30, 2023 and December 31, 2022, Stifel Bancorp had loans outstanding to its executive officers and directors and executive officers and directors of certain affiliated entities in the amount of $ 70.7 million and $ 86.4 million, respectively. At September 30, 2023 and December 31, 2022, we had loans held for sale of $ 142.6 million and $ 156.9 million, respectively. For the three months ended September 30, 2023 and 2022, we recognized a loss of $ 0.2 million and a gain of $ 0.4 million, respectively, from the sale of originated loans, net of fees and costs. For the nine months ended September 30, 2023 and 2022, we recognized a loss of $ 2.8 million and a gain of $ 1.0 million, respectively, from the sale of originated loans, net of fees and costs. At September 30, 2023 and December 31, 2022, loans, primarily consisting of residential and commercial real estate loans of $ 7.2 billion and $ 7.0 billion, respectively, were pledged at the Federal Home Loan Bank as collateral for borrowings. Accrued interest receivable for loans and loans held for sale at September 30, 2023 and December 21, 2022 was $ 78.2 million and $ 65.7 million, respectively, and is reported in other assets on the consolidated statement of financial condition. The following tables detail activity in the allowance for loan losses by portfolio segment for the three and nine months ended September 30, 2023 (in thousands) . Three Months Ended September 30, 2023 Beginning Provision Charge-offs Recoveries Ending Commercial and industrial $ 66,377 $ 8,584 $ ( 302 ) $ — $ 74,659 Commercial real estate 13,429 6,437 — — 19,866 Residential real estate 14,413 194 — — 14,607 Fund banking 12,178 ( 660 ) — — 11,518 Construction and land 12,645 ( 1,145 ) — — 11,500 Securities-based loans 3,086 ( 68 ) — — 3,018 Home equity lines of credit 168 27 — — 195 Other 385 49 — — 434 $ 122,681 $ 13,418 $ ( 302 ) $ — $ 135,797 Nine Months Ended September 30, 2023 Beginning Provision Charge-offs Recoveries Ending Commercial and industrial $ 54,143 $ 21,283 $ ( 920 ) $ 153 $ 74,659 Commercial real estate 12,897 6,969 — — 19,866 Residential real estate 20,441 ( 5,834 ) — — 14,607 Fund banking 11,711 ( 193 ) — — 11,518 Construction and land 8,568 2,932 — — 11,500 Securities-based loans 3,157 ( 139 ) — — 3,018 Home equity lines of credit 364 ( 169 ) — — 195 Other 372 62 — — 434 $ 111,653 $ 24,911 $ ( 920 ) $ 153 $ 135,797 During the three and nine months ended September 30, 2023, we released $ 3.4 million and $ 2.2 million, respectively, of the provision for unfunded lending commitments. The provision for unfunded lending commitments was $ 4.9 million and $ 17.8 million for the three and nine months ended September 30, 2022, respectively. The provision for unfunded lending commitments is included in the provision for credit losses on the consolidated statement of operations. The expected credit losses for unfunded lending commitments, including standby letters of credit and binding unfunded loan commitments, are reported on the consolidated statement of financial condition in accounts payable and accrued expenses. The following tables detail activity in the allowance for loan losses by portfolio segment for the three and nine months ended September 30, 2022 (in thousands) . Three Months Ended September 30, 2022 Beginning Provision Charge-offs Recoveries Ending Commercial and industrial $ 57,594 $ ( 1,511 ) $ ( 4,008 ) $ — $ 52,075 Residential real estate 22,615 ( 5,150 ) — — 17,465 Fund banking 9,758 2,414 — — 12,172 Commercial real estate 6,483 5,480 — — 11,963 Construction and land 5,854 1,675 — — 7,529 Securities-based loans 3,976 ( 658 ) — — 3,318 Home equity lines of credit 922 ( 724 ) — — 198 Other 280 24 — — 304 $ 107,482 $ 1,550 $ ( 4,008 ) $ — $ 105,024 Nine Months Ended September 30, 2022 Beginning Provision Charge-offs Recoveries Ending Commercial and industrial $ 44,661 $ 11,420 $ ( 4,008 ) $ 2 $ 52,075 Residential real estate 28,560 ( 11,095 ) — — 17,465 Fund banking 8,868 3,304 — — 12,172 Commercial real estate 3,934 8,029 — — 11,963 Construction and land 8,536 ( 1,007 ) — — 7,529 Securities-based loans 4,006 ( 652 ) ( 36 ) — 3,318 Home equity lines of credit 511 ( 313 ) — — 198 Other 268 36 — — 304 $ 99,344 $ 9,722 $ ( 4,044 ) $ 2 $ 105,024 At September 30, 2023, we had $ 50.7 million of impaired loans, net of discounts, which included $ 0.1 million in troubled debt restructurings. The specific allowance on impaired loans at September 30, 2023 was $ 13.1 million. At December 31, 2022, we had $ 10.3 million of impaired loans, net of discounts, which included $ 0.2 million in troubled debt restructurings. The specific allowance on impaired loans at December 31, 2022 was $ 6.5 million. The gross interest income related to impaired loans, which would have been recorded, had these loans been current in accordance with their original terms, and the interest income recognized on these loans during the three and nine months ended September 30, 2023 and 2022, were insignificant to the consolidated financial statements. The following tables present the aging of the recorded investment in past due loans at September 30, 2023 and December 31, 2022 by portfolio segment (in thousands) : As of September 30, 2023 30 – 89 Days 90 or More Total Past Current Total Residential real estate $ 5,072 $ 1,540 $ 6,612 $ 7,950,415 $ 7,957,027 Commercial and industrial — 9,233 9,233 4,358,438 4,367,671 Fund banking — — — 4,114,889 4,114,889 Securities-based loans — — — 2,317,631 2,317,631 Construction and land — — — 851,709 851,709 Commercial real estate — — — 670,907 670,907 Home equity lines of credit 51 22 73 123,922 123,995 Other 53 31 84 48,476 48,560 Total $ 5,176 $ 10,826 $ 16,002 $ 20,436,387 $ 20,452,389 As of September 30, 2023* Nonaccrual Restructured Nonperforming loans with no allowance Total Commercial real estate $ 39,747 $ — $ — $ 39,747 Commercial and industrial 9,233 — — 9,233 Residential real estate 616 146 924 1,686 Home equity lines of credit 22 — — 22 Other 29 — 2 31 Total $ 49,647 $ 146 $ 926 $ 50,719 * There were no loans past due 90 days and still accruing interest at September 30, 2023. As of December 31, 2022 30 – 89 Days 90 or More Total Current Total Residential real estate $ 2,445 $ 688 $ 3,133 $ 7,368,538 $ 7,371,671 Commercial and industrial — 9,226 9,226 4,887,950 4,897,176 Fund banking — — — 4,182,641 4,182,641 Securities-based loans — — — 2,724,551 2,724,551 Commercial real estate — — — 675,599 675,599 Construction and land — — — 593,191 593,191 Home equity lines of credit 29 182 211 106,925 107,136 Other 36 6 42 50,551 50,593 Total $ 2,510 $ 10,102 $ 12,612 $ 20,589,946 $ 20,602,558 As of December 31, 2022* Nonaccrual Restructured Nonperforming loans with no allowance Total Commercial and industrial $ 9,226 $ — $ — $ 9,226 Residential real estate 870 150 — 1,020 Other 6 — — 6 Total $ 10,102 $ 150 $ — $ 10,252 * There were no loans past due 90 days and still accruing interest at December 31, 2022. Credit quality indicators As of September 30, 2023, bank loans were primarily extended to non-investment grade borrowers. Substantially all of these loans align with the U.S. Federal bank regulatory agencies’ definition of Pass. Loans meet the definition of Pass when they are performing and do not demonstrate adverse characteristics that are likely to result in a credit loss. A loan is determined to be impaired when principal or interest becomes 90 days past due or when collection becomes uncertain. At the time a loan is determined to be impaired, the accrual of interest and amortization of deferred loan origination fees is discontinued (“nonaccrual status”), and any accrued and unpaid interest income is reversed. We closely monitor economic conditions and loan performance trends to manage and evaluate our exposure to credit risk. Trends in delinquency ratios are an indicator, among other considerations, of credit risk within our loan portfolio. The level of nonperforming assets represents another indicator of the potential for future credit losses. Accordingly, key metrics we track and use in evaluating the credit quality of our loan portfolio include delinquency and nonperforming asset rates, as well as charge-off rates and our internal risk ratings of the loan portfolio. In general, we are a secured lender. At September 30, 2023 and December 31, 2022, 97.0 % and 97.5 % of our loan portfolio was collateralized, respectively. Collateral is required in accordance with the normal credit evaluation process based upon the creditworthiness of the customer and the credit risk associated with the particular transaction. The Company uses the following definitions for risk ratings: Pass. A credit exposure rated pass has a continued expectation of timely repayment, all obligations of the borrower are current, and the obligor complies with material terms and conditions of the lending agreement. Special Mention. Extensions of credit that have potential weakness that deserve management’s close attention, and if left uncorrected may, at some future date, result in the deterioration of the repayment prospects or collateral position. Substandard. Obligor has a well-defined weakness that jeopardizes the repayment of the debt and has a high probability of payment default with the distinct possibility that the Company will sustain some loss if noted deficiencies are not corrected. Doubtful. Inherent weakness in the exposure makes the collection or repayment in full, based on existing facts, conditions and circumstances, highly improbable, and the amount of loss is uncertain. Substandard loans are regularly reviewed for impairment. Doubtful loans are considered impaired. When a loan is impaired the impairment is measured based on the present value of expected future cash flows discounted at the loan’s effective interest rate, or as a practical expedient, the observable market price of the loan or the fair value of the collateral if the loan is collateral dependent. Based on the most recent analysis performed, the risk category of our loan portfolio was as follows (in thousands) : As of September 30, 2023 Pass Special Mention Substandard Doubtful Total Residential real estate $ 7,955,487 $ — $ — $ 1,540 $ 7,957,027 Commercial and industrial 4,122,791 75,483 160,164 9,233 4,367,671 Fund banking 4,114,889 — — — 4,114,889 Securities-based loans 2,317,629 — — 2 2,317,631 Construction and land 827,228 24,481 — — 851,709 Commercial real estate 553,124 77,979 39,804 — 670,907 Home equity lines of credit 123,973 — — 22 123,995 Other 48,531 — 14 15 48,560 Total $ 20,063,652 $ 177,943 $ 199,982 $ 10,812 $ 20,452,389 As of December 31, 2022 Pass Special Mention Substandard Doubtful Total Residential real estate $ 7,370,717 $ 266 $ — $ 688 $ 7,371,671 Commercial and industrial 4,743,290 87,761 56,899 9,226 4,897,176 Fund banking 4,182,641 — — — 4,182,641 Securities-based loans 2,724,548 — — 3 2,724,551 Commercial real estate 655,599 20,000 — — 675,599 Construction and land 593,191 — — — 593,191 Home equity lines of credit 106,954 — — 182 107,136 Other 50,587 — — 6 50,593 Total $ 20,427,527 $ 108,027 $ 56,899 $ 10,105 $ 20,602,558 Term Loans Amortized Cost Basis by Origination Year – September 30, 2023 2023 2022 2021 2020 2019 Prior Revolving Loans Amortized Cost Basis Total Residential real estate: Pass $ 1,009,765 $ 2,677,509 $ 2,349,447 $ 934,506 $ 418,909 $ 565,351 $ — $ 7,955,487 Special Mention — — — — — — — — Substandard — — — — — — — — Doubtful — 924 — — — 616 — 1,540 $ 1,009,765 $ 2,678,433 $ 2,349,447 $ 934,506 $ 418,909 $ 565,967 $ — $ 7,957,027 Commercial and industrial: Pass $ 560,666 $ 1,167,661 $ 1,060,510 $ 220,224 $ 215,160 $ 199,041 $ 699,529 $ 4,122,791 Special Mention — 9,839 35,909 17,419 — — 12,316 75,483 Substandard — 26,967 74,411 — 3,913 — 54,873 160,164 Doubtful — — — 433 — 8,800 — 9,233 $ 560,666 $ 1,204,467 $ 1,170,830 $ 238,076 $ 219,073 $ 207,841 $ 766,718 $ 4,367,671 Fund banking: Pass $ — $ 55,267 $ — $ 578 $ — $ — $ 4,059,044 $ 4,114,889 Special Mention — — — — — — — — Substandard — — — — — — — — Doubtful — — — — — — — — $ — $ 55,267 $ — $ 578 $ — $ — $ 4,059,044 $ 4,114,889 Securities-based loans: Pass $ 13,954 $ 28,362 $ 2,503 $ 48,070 $ 27,278 $ 9,293 $ 2,188,169 $ 2,317,629 Special Mention — — — — — — — — Substandard — — — — — — — — Doubtful — — — — — — 2 2 $ 13,954 $ 28,362 $ 2,503 $ 48,070 $ 27,278 $ 9,293 $ 2,188,171 $ 2,317,631 Construction and land: Pass $ 26,811 $ 376,902 $ 191,175 $ 171,049 $ 61,291 $ — $ — $ 827,228 Special Mention — — — — 24,481 — — 24,481 Substandard — — — — — — — — Doubtful — — — — — — — — $ 26,811 $ 376,902 $ 191,175 $ 171,049 $ 85,772 $ — $ — $ 851,709 Commercial real estate: Pass $ 30,849 $ 356,640 $ 64,064 $ 31,201 $ 2,785 $ 67,585 $ — $ 553,124 Special Mention — 60,000 — — 17,979 — — 77,979 Substandard — — 39,804 — — — — 39,804 Doubtful — — — — — — — — $ 30,849 $ 416,640 $ 103,868 $ 31,201 $ 20,764 $ 67,585 $ — $ 670,907 Home equity lines of credit: Pass $ — $ — $ — $ — $ — $ — $ 123,973 $ 123,973 Special Mention — — — — — — — — Substandard — — — — — — — — Doubtful — — — — — — 22 22 $ — $ — $ — $ — $ — $ — $ 123,995 $ 123,995 Other: Pass $ 4,000 $ 3,991 $ — $ 10,000 $ — $ 22,555 $ 7,985 $ 48,531 Special Mention — — — — — — — — Substandard — — — — — — 14 14 Doubtful — — — — — — 15 15 $ 4,000 $ 3,991 $ — $ 10,000 $ — $ 22,555 $ 8,014 $ 48,560

Goodwill and Intangible Assets

Goodwill and Intangible Assets	9 Months Ended
Goodwill and Intangible Assets	Sep. 30, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	NOTE 8 – Goodwill and Intangible Assets The carrying amount of goodwill and intangible assets attributable to each of our reporting segments is presented in the following table (in thousands) : December 31, 2022 Adjustments Write-off September 30, 2023 Goodwill Global Wealth Management $ 335,009 $ — $ — $ 335,009 Institutional Group 991,539 72,581 — 1,064,120 $ 1,326,548 $ 72,581 $ — $ 1,399,129 December 31, 2022 Adjustments Amortization September 30, 2023 Intangible assets Global Wealth Management $ 33,499 $ — $ ( 3,652 ) $ 29,847 Institutional Group 97,090 10,726 ( 10,220 ) 97,596 $ 130,589 $ 10,726 $ ( 13,872 ) $ 127,443 The adjustments to goodwill and intangible assets during the nine months ended September 30, 2023 are primarily attributable to the acquisitions of Torreya Partners, LLC (“Torreya”) and Sierra Pacific Securities, LLC (“Sierra Pacific”). On March 1, 2023, the Company acquired Torreya, an independent M&A and private capital advisory firm that serves the global life sciences industry. Consideration for this acquisition consisted of cash from operations. The acquisition was accounted for under the acquisition method of accounting in accordance with ASC 805, “Business Combinations.” Accordingly, goodwill was measured as the excess of the acquisition-date fair value of the consideration transferred over the amount of acquisition-date identifiable assets acquired net of assumed liabilities. We recorded $ 61.9 million of goodwill and intangible assets in the consolidated statement of financial condition, which has been allocated to our company’s Institutional Group segment. The goodwill represents the value expected from the synergies created through the operational enhancement benefits that will result from the integration of Torreya’s business, its employees, and customer base. A significant amount of the goodwill is expected to be deductible for federal income tax purposes. On August 1, 2023, the Company acquired Sierra Pacific, an algorithmic trading-focused, fixed income market-making firm. Consideration for this acquisition consisted of cash from operations. The acquisition was accounted for under the acquisition method of accounting in accordance with ASC 805, “Business Combinations.” Accordingly, goodwill was measured as the excess of the acquisition-date fair value of the consideration transferred over the amount of acquisition-date identifiable assets acquired net of assumed liabilities. We recorded $ 21.4 million of goodwill and intangible assets in the consolidated statement of financial condition, which has been allocated to our company’s Institutional Group segment. The allocation of the purchase price of Sierra Pacific is preliminary and will be finalized upon completion of the analysis of the fair values of the net assets of Sierra Pacific as of the acquisition date and the identified intangible assets. The final goodwill recorded on the consolidated statement of financial condition may differ from that reflected herein as a result of future measurement period adjustments and the recording of identified intangible assets. The goodwill represents the value expected from the synergies created through the operational enhancement benefits that will result from the integration of Sierra Pacific’s business, its employees, and customer base. Intangible assets consist of acquired customer relationships, trade names, non-compete agreements, core deposits, and investment banking backlog that are amortized over their contractual or determined useful lives. Intangible assets as of September 30, 2023 and December 31, 2022 were as follows (in thousands) : September 30, 2023 December 31, 2022 Gross Accumulated Amortization Gross Accumulated Amortization Customer relationships $ 226,984 $ 119,306 $ 225,631 $ 109,216 Trade names 30,359 21,995 30,359 20,861 Non-compete agreements 10,071 8,060 9,440 7,158 Core deposits 8,615 7,990 8,615 7,389 Investment banking backlog 8,913 5,368 5,545 4,377 Estimated Sierra Pacific intangibles (1) 5,400 180 — — $ 290,342 $ 162,899 $ 279,590 $ 149,001 (1) See discussion regarding the allocation of the estimated goodwill and intangibles recorded for the Sierra Pacific acquisition. Amortization expense related to intangible assets was $ 4.8 million and $ 4.4 million for the three months ended September 30, 2023 and 2022, respectively. Amortization expense related to intangible assets was $ 13.9 million and $ 15.0 million for the nine months ended September 30, 2023 and 2022, respectively. Amortization expense is included in other operating expenses in the consolidated statements of operations. The weighted-average remaining lives of the following intangible assets at September 30, 2023, are: customer relationships, 9.8 years; trade names, 7.3 years; non-compete agreements, 4.5 years; core deposits, 1.4 years; investment banking backlog, 4.9 years; and Sierra Pacific intangibles, 4.8 years. We have an intangible asset that is not subject to amortization and is, therefore, not included in the table below. As of September 30, 2023, we expect amortization expense in future periods to be as follows (in thousands) : Fiscal year Remainder of 2023 $ 4,732 2024 18,243 2025 16,032 2026 14,442 2027 14,142 Thereafter 57,734 $ 125,325

Borrowings and Federal Home Loa

Borrowings and Federal Home Loan Bank Advances	9 Months Ended
Borrowings and Federal Home Loan Bank Advances	Sep. 30, 2023
Short-Term Debt, Other Disclosure [Abstract]
Borrowings and Federal Home Loan Bank Advances	NOTE 9 – Borrowings and Federal Home Loan Bank Advances Our short-term financing is generally obtained through short-term bank line financing on an uncommitted, secured basis, securities lending arrangements, repurchase agreements, advances from the Federal Home Loan Bank, term loans, and committed bank line financing on an unsecured basis. We borrow from various banks on a demand basis with company-owned and customer securities pledged as collateral. The value of customer-owned securities used as collateral is not reflected in the consolidated statements of financial condition. We also have an unsecured, committed bank line available. Our uncommitted secured lines of credit at September 30, 2023, totaled $ 880.0 million with four banks and are dependent on having appropriate collateral, as determined by the bank agreements, to secure an advance under the line. The availability of our uncommitted lines is subject to approval by the individual banks each time an advance is requested and may be denied. Our peak daily borrowing on our uncommitted secured lines was $ 115.0 million during the nine months ended September 30, 2023. There are no compensating balance requirements under these arrangements. Any borrowings on secured lines of credit are generally utilized to finance certain fixed income securities. At September 30, 2023, we had no outstanding balances on our uncommitted secured lines of credit. The Federal Home Loan advances are floating-rate advances. The weighted average interest rate on these advances during the nine months ended September 30, 2023 was 4.97 %. The advances are secured by Stifel Bancorp’s residential mortgage loan portfolio and investment portfolio. The interest rates reset on a daily basis. Stifel Bancorp has the option to prepay these advances without penalty on the interest reset date. At September 30, 2023, there were no Federal Home Loan advances. On September 27, 2023, the Company and Stifel (the “Borrowers”) entered into an unsecured credit agreement with a syndicate of lenders led by Bank of America, N.A., as administrative agent (the “Credit Agreement”). Concurrently with, and conditional upon, the effectiveness of the Credit Agreement, all of the commitments under the Borrowers existing $ 500.0 million unsecured revolving credit facility agreement were terminated. The Credit Agreement has a maturity date of September 27, 2028 , and provides for a committed unsecured borrowing facility for maximum aggregate borrowings of up to $ 750.0 million depending on the amount of outstanding borrowings of the Borrowers from time to time during the duration of the Credit Agreement. The interest rates on borrowings under the Credit Agreement are variable and based on the Secured Overnight Financing Rate. There were no borrowings outstanding on the Credit Facility as of September 30, 2023.

Senior Notes

Senior Notes	9 Months Ended
Senior Notes	Sep. 30, 2023
Debt Disclosure [Abstract]
Senior Notes	NOTE 10 – Senior Notes The following table summarizes our senior notes as of September 30, 2023 and December 31, 2022 (in thousands) : September 30, 2023 December 31, 4.25 % senior notes, due 2024 (1) $ 500,000 $ 500,000 4.00 % senior notes, due 2030 (2) 400,000 400,000 5.20 % senior notes, due 2047 (3) 225,000 225,000 1,125,000 1,125,000 Debt issuance costs, net ( 9,640 ) ( 10,446 ) Senior notes, net $ 1,115,360 $ 1,114,554 (1) In July 2014, we sold in a registered underwritten public offering, $ 300.0 million in aggregate principal amount of 4.25 % senior notes due July 2024 . Interest on these senior notes is payable semi-annually in arrears. We may redeem the notes in whole or in part, at our option, at a redemption price equal to 100 % of their principal amount, plus a “make-whole” premium and accrued and unpaid interest, if any, to the date of redemption. In July 2016, we issued an additional $ 200.0 million in aggregate principal amount of 4.25% senior notes due 2024. (2) In May 2020, we sold in a registered underwritten public offering, $ 400.0 million in aggregate principal amount of 4.00 % senior notes due May 2030 . Interest on these senior notes is payable semi-annually in arrears. We may redeem the notes in whole or in part, at our option, at a redemption price equal to the greater of a) 100 % of their principal amount, or b) discounted present value at Treasury rate plus 50 basis points prior to February 15, 2030, and on or after February 15, 2030, at 100 % of their principal amount, and accrued and unpaid interest, if any, to the date of redemption. (3) In October 2017, we completed the pricing of a registered underwritten public offering of $ 200.0 million in aggregate principal amount of 5.20 % senior notes due October 2047 . Interest on the senior notes is payable quarterly in arrears. On or after October 15, 2022, we may redeem some or all of the senior notes at any time at a redemption price equal to 100 % of the principal amount of the notes being redeemed plus accrued interest thereon to the redemption date. On October 27, 2017, we completed the sale of an additional $ 25.0 million aggregate principal amount of Notes pursuant to the over-allotment option. Our senior notes mature as follows, based upon contractual terms (in thousands) : 2023 $ — 2024 500,000 2025 — 2026 — 2027 — Thereafter 625,000 $ 1,125,000

Bank Deposits

Bank Deposits	9 Months Ended
Bank Deposits	Sep. 30, 2023
Deposits Liabilities, Balance Sheet, Reported Amounts [Abstract]
Bank Deposits	NOTE 11 – Bank Deposits Deposits consist of interest-bearing demand deposits (primarily money market and savings accounts), non-interest bearing demand deposits, and certificates of deposit. Deposits at September 30, 2023 and December 31, 2022 were as follows (in thousands) : September 30, 2023 December 31, Demand deposits (interest-bearing) $ 27,335,890 $ 26,805,073 Demand deposits (non-interest-bearing) 258,466 305,138 Certificates of deposit 2 6,900 $ 27,594,358 $ 27,117,111 The weighted-average interest rate on deposits was 2.48 % and 0.58 % at September 30, 2023 and December 31, 2022, respectively. At September 30, 2023 and December 31, 2022, the amount of deposits includes related party deposits, primarily interest-bearing and time deposits of executive officers, directors, and their affiliates of $ 10.3 million and $ 9.8 million, respectively. Brokerage customers’ deposits were $ 24.7 billion and $ 25.3 billion, respectively.

Derivative Instruments and Hedg

Derivative Instruments and Hedging Activities	9 Months Ended
Derivative Instruments and Hedging Activities	Sep. 30, 2023
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments and Hedging Activities	NOTE 12 – Derivative Instruments and Hedging Activities We manage the interest rate risk associated with our derivative transactions with customers by entering into offsetting positions with other derivative dealers, resulting in a substantially “matched book” portfolio. Credit risk associated with its derivative transactions is managed through a variety of measures, including initial and ongoing periodic underwriting of its counterparties’ creditworthiness, establishment of customer credit limits, and collateral maintenance requirements for customer exposures that exceed certain preset thresholds. Our policy is not to offset fair value amounts recognized for derivative instruments and fair value amounts recognized for the right to reclaim cash collateral or the obligation to return cash collateral arising from derivative instruments recognized at fair value executed with the same counterparty under master netting arrangements. The following tables provide the notional values and fair values of our derivative instruments as of September 30, 2023 and December 31, 2022 (in thousands) : September 30, 2023 Derivative Assets Derivative Liabilities Notional value Interest rate contracts $ 166,038 $ 166,015 $ 1,876,064 December 31, 2022 Derivative Assets Derivative Liabilities Notional value Interest rate contracts $ 142,042 $ 142,028 $ 1,395,135 The scheduled maturities of our derivative instruments as of September 30, 2023, are as follows (in thousands) : Within one year $ 41,369 One to three years 581,049 Three to five years 381,601 Five to ten years 758,302 Ten to fifteen years 94,603 Fifteen years and thereafter 19,140 $ 1,876,064 The following table presents the distribution of customer interest rate derivative transactions, by derivative product, as of September 30, 2023 and December 31, 2022 (in thousands) : September 30, 2023 December 31, 2022 Swaps $ 1,706,064 $ 1,375,135 Written options 170,000 20,000 $ 1,876,064 $ 1,395,135

Disclosures About Offsetting As

Disclosures About Offsetting Assets and Liabilities	9 Months Ended
Disclosures About Offsetting Assets and Liabilities	Sep. 30, 2023
Offsetting [Abstract]
Disclosures About Offsetting Assets and Liabilities	NOTE 13 – Disclosures About Offsetting Assets and Liabilities The following table provides information about financial assets and derivative assets that are subject to offset as of September 30, 2023 and December 31, 2022 (in thousands) : As of September 30, 2023 Securities borrowing (1) Reverse repurchase agreements (2) Interest rate contracts (3) Total Gross amounts of recognized assets $ 180,156 $ 412,367 $ 166,038 $ 758,561 Gross amounts offset in the statement of financial condition — — — — Net amounts presented in the statement of financial condition 180,156 412,367 166,038 758,561 Gross amounts not offset in the statement of financial condition: Amounts available for offset ( 23,613 ) ( 19,706 ) ( 1,486 ) ( 44,805 ) Available collateral ( 147,773 ) ( 390,288 ) ( 98,514 ) ( 636,575 ) Net amount $ 8,770 $ 2,373 $ 66,038 $ 77,181 As of December 31, 2022 Securities borrowing (1) Reverse repurchase agreements (2) Interest rate contracts (3) Total Gross amounts of recognized assets $ 219,052 $ 348,162 $ 142,042 $ 709,256 Gross amounts offset in the statement of financial condition — — — — Net amounts presented in the statement of financial condition 219,052 348,162 142,042 709,256 Gross amounts not offset in the statement of financial condition: Amounts available for offset ( 46,647 ) ( 12,028 ) ( 1,959 ) ( 60,634 ) Available collateral ( 160,139 ) ( 334,537 ) ( 55,568 ) ( 550,244 ) Net amount $ 12,266 $ 1,597 $ 84,515 $ 98,378 (1) Securities borrowing transactions are included in receivables from brokers, dealers, and clearing organizations on the consolidated statements of financial condition. See Note 3 in the notes to consolidated financial statements for additional information on receivables from brokers, dealers, and clearing organizations. (2) Available collateral includes securities received from the counterparty. These securities are not included on the consolidated statements of financial condition unless there is an event of default. The fair value of securities received as collateral was $ 410.1 million and $ 346.5 million at September 30, 2023 and December 31, 2022, respectively. (3) Available collateral includes securities received from the counterparty. These securities are not included on the consolidated statements of financial condition unless there is an event of default. The fair value of securities received as collateral was $ 74.4 million and $ 50.0 million at September 30, 2023 and December 31, 2022, respectively. The following table provides information about financial liabilities and derivative liabilities that are subject to offset as of September 30, 2023 and December 31, 2022 (in thousands) : As of September 30, 2023 Securities lending (4) Repurchase agreements (5) Interest rate contracts (6) Total Gross amounts of recognized liabilities $ ( 104,570 ) $ ( 408,950 ) $ ( 166,015 ) $ ( 679,535 ) Gross amounts offset in the statement of financial condition — — — — Net amounts presented in the statement of financial condition ( 104,570 ) ( 408,950 ) ( 166,015 ) ( 679,535 ) Gross amounts not offset in the statement of financial condition: Amounts available for offset 23,613 19,706 1,486 44,805 Collateral pledged 80,956 389,244 52,653 522,853 Net amount $ ( 1 ) $ — $ ( 111,876 ) $ ( 111,877 ) As of December 31, 2022 Securities lending (4) Repurchase agreements (5) Interest rate contracts (6) Total Gross amounts of recognized liabilities $ ( 68,105 ) $ ( 212,011 ) $ ( 142,028 ) $ ( 422,144 ) Gross amounts offset in the statement of financial condition — — — — Net amounts presented in the statement of financial condition ( 68,105 ) ( 212,011 ) ( 142,028 ) ( 422,144 ) Gross amounts not offset in the statement of financial condition: Amounts available for offset 46,647 12,028 1,959 60,634 Collateral pledged 21,448 199,983 25,850 247,281 Net amount $ ( 10 ) $ — $ ( 114,219 ) $ ( 114,229 ) (4) Securities lending transactions are included in payables to brokers, dealers, and clearing organizations on the consolidated statements of financial condition. See Note 3 in the notes to consolidated financial statements for additional information on payables to brokers, dealers, and clearing organizations. (5) Collateral pledged includes the fair value of securities pledged to the counterparty. These securities are included on the consolidated statements of financial condition unless we default. Collateral pledged by our company to the counterparty includes U.S. government agency securities, U.S. government securities, and corporate fixed income securities with market values of $ 418.7 million and $ 218.3 million at September 30, 2023 and December 31, 2022, respectively. (6) Collateral pledged includes the fair value of securities pledged to the counterparty. The fair value of securities pledged as collateral was $ 25.2 million and $ 24.1 million at September 30, 2023 and December 31, 2022, respectively.

Commitments, Guarantees, and Co

Commitments, Guarantees, and Contingencies	9 Months Ended
Commitments, Guarantees, and Contingencies	Sep. 30, 2023
Commitments and Contingencies Disclosure [Abstract]
Commitments, Guarantees, and Contingencies	NOTE 14 – Commitments, Guarantees, and Contingencies Broker-Dealer Commitments and Guarantees In the normal course of business, we enter into underwriting commitments. Settlement of transactions relating to such underwriting commitments, which were open at September 30, 2023, had no material effect on the consolidated financial statements. As a part of our fixed income public finance operations, we enter into forward commitments to purchase agency mortgage-backed securities. In order to hedge the market interest rate risk to which we would otherwise be exposed between the date of the commitment and date of sale of the mortgage-backed securities, we enter into to be announced (“TBA”) security contracts with investors for generic mortgage-backed security at specific rates and prices to be delivered on settlement dates in the future. We may be subject to loss if the timing of, or the actual amount of, the mortgage-backed security differs significantly from the term and notional amount of the TBA security contract to which we entered. These TBA securities and related purchase commitment are accounted for at fair value. As of September 30, 2023, the fair value of the TBA securities and the estimated fair value of the purchase commitments were $ 70.3 million. We also provide guarantees to securities clearinghouses and exchanges under their standard membership agreement, which requires members to guarantee the performance of other members. Under the agreement, if another member becomes unable to satisfy its obligations to the clearinghouse, other members would be required to meet shortfalls. Our liability under these agreements is not quantifiable and may exceed the cash and securities we have posted as collateral. However, the potential requirement for us to make payments under these arrangements is considered remote. Accordingly, no liability has been recognized for these arrangements. Other Commitments In the ordinary course of business, Stifel Bancorp has commitments to extend credit in the form of commitments to originate loans, standby letters of credit, and lines of credit. See Note 21 in the notes to consolidated financial statements for further details. Concentration of Credit Risk We provide investment, capital-raising, and related services to a diverse group of domestic customers, including governments, corporations, and institutional and individual investors. Our exposure to credit risk associated with the non-performance of customers in fulfilling their contractual obligations pursuant to securities transactions can be directly impacted by volatile securities markets, credit markets, and regulatory changes. This exposure is measured on an individual customer basis and on a group basis for customers that share similar attributes. To reduce the potential for risk concentrations, counterparty credit limits have been implemented for certain products and are continually monitored in light of changing customer and market conditions. As of September 30, 2023, we did not have significant concentrations of credit risk with any one customer or counterparty, or any group of customers or counterparties.

Legal Proceedings

Legal Proceedings	9 Months Ended
Legal Proceedings	Sep. 30, 2023
Loss Contingency, Information about Litigation Matters [Abstract]
Legal Proceedings	NOTE 15 – Legal Proceedings Our company and its subsidiaries are named in and subject to various proceedings and claims arising primarily from our securities business activities, including lawsuits, arbitration claims, class actions, and regulatory matters. Some of these claims seek substantial compensatory, punitive, or indeterminate damages. Our company and its subsidiaries are also involved in other reviews, investigations, and proceedings by governmental and self-regulatory organizations regarding our business, which may result in adverse judgments, settlements, fines, penalties, injunctions, and other relief. We are contesting allegations in these claims, and we believe that there are meritorious defenses in each of these lawsuits, arbitrations, and regulatory investigations. In view of the number and diversity of claims against our company, the number of jurisdictions in which litigation is pending, and the inherent difficulty of predicting the outcome of litigation and other claims, we cannot state with certainty what the eventual outcome of pending litigation or other claims will be. We have established reserves for potential losses that are probable and reasonably estimable that may result from pending and potential legal actions, investigations, and regulatory proceedings. In many cases, however, it is inherently difficult to determine whether any loss is probable or reasonably possible or to estimate the amount or range of any potential loss, particularly where proceedings may be in relatively early stages or where plaintiffs are seeking substantial or indeterminate damages. Matters frequently need to be more developed before a loss or range of loss can reasonably be estimated. In our opinion, based on currently available information, review with outside legal counsel, and consideration of amounts provided for in our consolidated financial statements with respect to these matters, including the matter described below, the ultimate resolution of these matters will not have a material adverse impact on our financial position and results of operations. However, resolution of one or more of these matters may have a material effect on the results of operations in any future period, depending upon the ultimate resolution of those matters and depending upon the level of income for such period. For matters where a reserve has not been established and for which we believe a loss is reasonably possible, as well as for matters where a reserve has been recorded but for which an exposure to loss in excess of the amount accrued is reasonably possible, based on currently available information, we believe that such losses will not have a material effect on our consolidated financial statements. SEC Investigation of Communications Recordkeeping The Company has been contacted by the SEC in connection with an investigation of the Company’s compliance with records preservation requirements for off-channel communications relating to the broker-dealer or investment adviser business activities of the Company using personally owned communications devices and/or messaging platforms that have not been approved by the Company. The SEC has provided the Company with a settlement offer and the Company has established reserves for potential losses that are probable and estimable, but at this time, based upon currently available information and review with outside counsel, the Company is not able to state with certainty that a settlement will be achieved or the ultimate resolution of this matter. The Company has also been contacted by the CFTC in connection with an investigation of the use of non-Stifel communications platforms for business-related communications by employees who were associated persons of CFTC registrants. At this time, based upon currently available information and review with outside counsel, the Company is not able to estimate the outcome of this matter, including the range of possible ultimate resolutions.

Regulatory Capital Requirements

Regulatory Capital Requirements	9 Months Ended
Regulatory Capital Requirements	Sep. 30, 2023
Broker-Dealer, Net Capital Requirement, SEC Regulation [Abstract]
Regulatory Capital Requirements	NOTE 16 – Regulatory Capital Requirements We operate in a highly regulated environment and are subject to capital requirements, which may limit distributions to our company from its subsidiaries. Distributions from our broker-dealer subsidiaries are subject to net capital rules. A broker-dealer that fails to comply with the SEC’s Uniform Net Capital Rule (Rule 15c3-1) may be subject to disciplinary actions by the SEC and self-regulatory organizations, such as FINRA, including censures, fines, suspension, or expulsion. Stifel has chosen to calculate its net capital under the alternative method, which prescribes that their net capital shall not be less than the greater of $ 1.0 million or two percent of aggregate debit balances (primarily receivables from customers) computed in accordance with the SEC’s Customer Protection Rule (Rule 15c3-3). Our other broker-dealer subsidiaries calculate their net capital under the aggregate indebtedness method, whereby their aggregate indebtedness may not be greater than fifteen times their net capital (as defined). At September 30, 2023, Stifel had net capital of $ 395.4 million, which was 36.5 % of aggregate debit items and $ 373.8 million in excess of its minimum required net capital. At September 30, 2023, all of our other broker-dealer subsidiaries’ net capital exceeded the minimum net capital required under the SEC rule. Our international subsidiary, SNEL, is subject to the regulatory supervision and requirements of the Financial Conduct Authority (“FCA”) in the United Kingdom. At September 30, 2023, our international subsidiary’s capital and reserves were in excess of the financial resources requirement under the rules of the FCA. Our Canadian subsidiary, SNC, is subject to the regulatory supervision and requirements of the Investment Industry Regulatory Organization of Canada (“IIROC”). At September 30, 2023, SNC’s net capital and reserves were in excess of the financial resources requirement under the rules of the IIROC. Our company, as a bank holding company, Stifel Bank & Trust, Stifel Bank, Stifel Trust Company, N.A., and Stifel Trust Company, Delaware, N.A., (collectively, “banking subsidiaries”), are subject to various regulatory capital requirements administered by the Federal and state banking agencies. Failure to meet minimum capital requirements can initiate certain mandatory and possibly additional discretionary actions by regulators that, if undertaken, could have a direct material effect on our company’s and it’s banking subsidiaries’ financial results. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, our company and its banking subsidiaries must meet specific capital guidelines that involve quantitative measures of our assets, liabilities, and certain off-balance sheet items as calculated under regulatory accounting practices. Our company’s and its banking subsidiaries’ capital amounts and classification are also subject to qualitative judgments by the regulators about components, risk weightings, and other factors. Under the Basel III rules, the quantity and quality of regulatory capital increased, a capital conservation buffer was established, selected changes were made to the calculation of risk-weighted assets, and a new ratio, common equity Tier 1 was introduced, all of which are applicable to both our company and its banking subsidiaries. Our company and its banking subsidiaries are required to maintain minimum amounts and ratios of Total and Tier 1 capital (as defined) to risk-weighted assets (as defined), Tier 1 capital to average assets (as defined), and under rules defined in Basel III, Common equity Tier 1 capital to risk-weighted assets. Our company and its banking subsidiaries each calculate these ratios in order to assess compliance with both regulatory requirements and their internal capital policies. At current capital levels, our company and its banking subsidiaries are each categorized as “well capitalized” under the regulatory framework for prompt corrective action. To be categorized as “well capitalized,” our company and its banking subsidiaries must maintain total risk-based, Tier 1 risk-based, and Tier 1 leverage ratios. The amounts and ratios for Stifel Financial Corp., Stifel Bank & Trust, and Stifel Bank as of September 30, 2023 are represented in the tables below (in thousands, except ratios). Actual For Capital To Be Well Capitalized Stifel Financial Corp. Amount Ratio Amount Ratio Amount Ratio Common equity tier 1 capital $ 3,228,952 13.9 % $ 1,044,849 4.5 % $ 1,509,226 6.5 % Tier 1 capital 3,913,952 16.9 % 1,393,131 6.0 % 1,857,509 8.0 % Total capital 4,136,017 17.8 % 1,857,509 8.0 % 2,321,886 10.0 % Tier 1 leverage 3,913,952 10.8 % 1,454,233 4.0 % 1,817,791 5.0 % Actual For Capital To Be Well Capitalized Stifel Bank & Trust Amount Ratio Amount Ratio Amount Ratio Common equity tier 1 capital $ 1,489,819 10.8 % $ 620,224 4.5 % $ 895,878 6.5 % Tier 1 capital 1,489,819 10.8 % 826,965 6.0 % 1,102,620 8.0 % Total capital 1,625,012 11.8 % 1,102,620 8.0 % 1,378,275 10.0 % Tier 1 leverage 1,489,819 7.7 % 774,198 4.0 % 967,748 5.0 % Actual For Capital To Be Well Capitalized Stifel Bank Amount Ratio Amount Ratio Amount Ratio Common equity tier 1 capital $ 690,456 14.6 % $ 212,588 4.5 % $ 307,071 6.5 % Tier 1 capital 690,456 14.6 % 283,451 6.0 % 377,934 8.0 % Total capital 722,840 15.3 % 377,934 8.0 % 472,418 10.0 % Tier 1 leverage 690,456 7.1 % 390,341 4.0 % 487,926 5.0 %

Operating Leases

Operating Leases	9 Months Ended
Operating Leases	Sep. 30, 2023
Lessee Disclosure [Abstract]
Operating Leases	NOTE 17 – Operating Leases Our operating leases primarily relate to office space and office equipment with remaining lease terms of 1 to 13 years. At September 30, 2023 and December 31, 2022, operating lease right-of-use assets were $ 786.5 million and $ 775.9 million, respectively, and lease liabilities were $ 831.7 million and $ 819.7 million, respectively, included in accounts payable and accrued expenses in the consolidated statements of financial condition. The table below summarizes our net lease cost for the three and nine months ended September 30, 2023 and 2022 (in thousands) : Three Months Ended September 30, 2023 2022 Operating lease cost $ 27,183 $ 26,685 Short-term lease cost 710 401 Variable lease cost 7,299 6,028 Sublease income ( 274 ) ( 591 ) Net lease cost $ 34,918 $ 32,523 Nine Months Ended September 30, 2023 2022 Operating lease cost $ 79,961 $ 80,137 Short-term lease cost 1,425 998 Variable lease cost 21,244 17,051 Sublease income ( 836 ) ( 1,786 ) Net lease cost $ 101,794 $ 96,400 Operating lease costs are included in occupancy and equipment rental in the consolidated statements of operations. The table below summarizes other information related to our operating leases as of and for the nine months ended September 30, 2023 (in thousands) : Operating lease cash flows $ 82,976 Right-of-use assets obtained in exchange for new operating lease liabilities $ 83,749 Weighted-average remaining lease term (years) 12.8 years Weighted-average discount rate 4.92 % The weighted average discount rate represents our company’s incremental borrowing rate at the lease inception date. The table below presents information about operating lease liabilities as of September 30, 2023, (in thousands, except percentages) . Remainder of 2023 $ 26,798 2024 105,237 2025 99,070 2026 99,271 2027 98,302 Thereafter 730,135 Total undiscounted lease payments 1,158,813 Imputed interest ( 327,095 ) Total operating lease liabilities $ 831,718

Revenues from Contracts with Cu

Revenues from Contracts with Customers	9 Months Ended
Revenues from Contracts with Customers	Sep. 30, 2023
Revenue from Contract with Customer [Abstract]
Revenues from Contracts with Customers	NOTE 18 – Revenues from Contracts with Customers The following table presents the Company’s total revenues broken out by revenues from contracts with customers and other sources of revenue for the three and nine months ended September 30, 2023 and 2022 (in thousands) : Three Months Ended September 30, 2023 2022 Revenues from contracts with customers: Commissions $ 165,075 $ 159,054 Investment banking 146,887 221,858 Asset management 333,127 300,557 Other 1,380 1,055 Total revenue from contracts with customers 646,469 682,524 Other sources of revenue: Interest 505,198 304,195 Principal transactions 114,841 118,379 Other ( 921 ) ( 203 ) Total revenues $ 1,265,587 $ 1,104,895 Nine Months Ended September 30, 2023 2022 Revenues from contracts with customers: Commissions $ 499,983 $ 541,644 Investment banking 525,591 747,779 Asset management 968,960 973,457 Other 3,987 4,763 Total revenue from contracts with customers 1,998,521 2,267,643 Other sources of revenue: Interest 1,439,532 682,384 Principal transactions 336,063 403,252 Other ( 4,927 ) 3,060 Total revenues $ 3,769,189 $ 3,356,339 Revenue from contracts with customers is recognized when, or as, we satisfy our performance obligations by transferring the promised services to the customers. A service is transferred to a customer when, or as, the customer obtains control of that service. A performance obligation may be satisfied over time or at a point in time. Revenue from a performance obligation satisfied over time is recognized by measuring our progress in satisfying the performance obligation in a manner that depicts the transfer of the services to the customer. Revenue from a performance obligation satisfied at a point in time is recognized at the point in time that we determine the customer obtains control over the promised service. The amount of revenue recognized reflects the consideration we expect to be entitled to in exchange for those promised services (i.e., the “transaction price”). In determining the transaction price, we consider multiple factors, including the effects of variable consideration. Variable consideration is included in the transaction price only to the extent it is probable that a significant reversal in the amount of cumulative revenue recognized will not occur when the uncertainties with respect to the amount are resolved. In determining when to include variable consideration in the transaction price, we consider the range of possible outcomes, the predictive value of our past experiences, the time period of when uncertainties expect to be resolved and the amount of consideration that is susceptible to factors outside of our influence, such as market volatility or the judgment and actions of third parties. The following provides detailed information on the recognition of our revenues from contracts with customers: Commissions. We earn commission revenue by executing, settling, and clearing transactions for clients primarily in OTC and listed equity securities, insurance products, and options. Trade execution and clearing and custody services, when provided together, represent a single performance obligation as the services are not separately identifiable in the context of the contract. Commission revenues associated with combined trade execution and clearing and custody services, as well as trade execution services on a standalone basis, are recognized at a point in time on trade-date. Commission revenues are generally paid on settlement date and we record a receivable between trade-date and payment on settlement date. Investment Banking. We provide our clients with a full range of capital markets and financial advisory services. Capital markets services include underwriting and placement agent services in both the equity and debt capital markets, including private equity placements, initial public offerings, follow-on offerings, underwriting and distributing public and private debt. Capital-raising revenues are recognized at a point in time on trade-date, as the client obtains the control and benefit of the capital markets offering at that point. Costs associated with capital-raising transactions are deferred until the related revenue is recognized or the engagement is otherwise concluded, and are recorded on a gross basis within other operating expenses in the consolidated statements of operations as we are acting as a principal in the arrangement. Any expenses reimbursed by our clients are recognized as investment banking revenues. Revenues from financial advisory services primarily consist of fees generated in connection with merger, acquisition and restructuring transactions. Advisory revenues from mergers and acquisitions engagements are recognized at a point in time when the related transaction is completed, as the performance obligation is to successfully broker a specific transaction. Fees received prior to the completion of the transaction are deferred within accounts payable and accrued expenses on the consolidated statements of financial condition. Advisory revenues from restructuring engagements are recognized over time using a time elapsed measure of progress as our clients simultaneously receive and consume the benefits of those services as they are provided. A significant portion of the fees we receive for our advisory services are considered variable as they are contingent upon a future event (e.g., completion of a transaction or third party emergence from bankruptcy) and are excluded from the transaction price until the uncertainty associated with the variable consideration is subsequently resolved, which is expected to occur upon achievement of the specified milestone. Payment for advisory services are generally due promptly upon completion of a specified milestone or, for retainer fees, periodically over the course of the engagement. We recognize a receivable between the date of completion of the milestone and payment by the customer. Expenses associated with investment banking advisory engagements are deferred only to the extent they are explicitly reimbursable by the client and the related revenue is recognized at the same time as the associated expense. All other investment banking advisory related expenses, including expenses incurred related to restructuring assignments, are expensed as incurred. All investment banking advisory expenses are recognized within other operating expenses on the consolidated statements of operations and any expenses reimbursed by our clients are recognized as investment banking revenues. Asset Management Fees. We earn management and performance fees in connection with investment advisory services provided to institutional and individual clients. Investment advisory fees are charged based on the value of assets in fee-based accounts and are affected by changes in the balances of client assets due to market fluctuations and levels of net new client assets. Fees are charged either in advance based on fixed rates applied to the value of the customers’ account at the beginning of the period or periodically based on contracted rates and account performance. Contracts can be terminated at any time with no incremental payments due to our company upon termination. If the contract is terminated by the customer fees are prorated for the period and fees charged for the post termination period are refundable to the customer. Disaggregation of Revenue The following tables present the Company’s revenues from contracts with customers by reportable segment disaggregated by major business activity and primary geographic regions for the three and nine months ended September 30, 2023 and 2022 (in thousands) : Three Months Ended September 30, 2023 (1) Global Wealth Management Institutional Group Other Total Major Business Activity: Commissions $ 112,300 $ 52,775 $ — $ 165,075 Capital raising 3,895 45,719 — 49,614 Advisory — 97,273 — 97,273 Investment banking 3,895 142,992 — 146,887 Asset management 333,088 39 — 333,127 Other 1,319 17 44 1,380 Total 450,602 195,823 44 646,469 Primary Geographic Region: United States 450,602 145,787 44 596,433 United Kingdom — 31,240 — 31,240 Canada — 8,601 — 8,601 Other — 10,195 — 10,195 $ 450,602 $ 195,823 $ 44 $ 646,469 (1) Excludes revenues not derived from contracts with customers included in the Other segment. Three Months Ended September 30, 2022 (1) Global Wealth Management Institutional Group Other Total Major Business Activity: Commissions $ 108,214 $ 50,840 $ — $ 159,054 Capital raising 4,498 50,624 — 55,122 Advisory — 166,736 — 166,736 Investment banking 4,498 217,360 — 221,858 Asset management 300,540 17 — 300,557 Other 979 — 76 1,055 Total 414,231 268,217 76 682,524 Primary Geographic Region: United States 414,231 223,713 76 638,020 United Kingdom — 29,987 — 29,987 Canada — 7,920 — 7,920 Other — 6,597 — 6,597 $ 414,231 $ 268,217 $ 76 $ 682,524 Nine Months Ended September 30, 2023 (1) Global Wealth Management Institutional Group Other Total Major business activity: Commissions $ 332,327 $ 167,656 $ — $ 499,983 Capital raising 12,118 177,263 — 189,381 Advisory — 336,210 — 336,210 Investment banking 12,118 513,473 — 525,591 Asset management 968,863 97 — 968,960 Other 3,821 17 149 3,987 Total 1,317,129 681,243 149 1,998,521 Primary Geographic Region: United States 1,317,129 499,047 149 1,816,325 United Kingdom — 99,844 — 99,844 Canada — 38,738 — 38,738 Other — 43,614 — 43,614 $ 1,317,129 $ 681,243 $ 149 $ 1,998,521 Nine Months Ended September 30, 2022 (1) Global Wealth Management Institutional Group Other Total Major business activity: Commissions $ 360,994 $ 180,650 $ — $ 541,644 Capital raising 14,701 185,390 — 200,091 Advisory — 547,688 — 547,688 Investment banking 14,701 733,078 — 747,779 Asset management 973,396 61 — 973,457 Other 4,573 — 190 4,763 Total 1,353,664 913,789 190 2,267,643 Primary Geographic Region: United States 1,353,664 763,774 190 2,117,628 United Kingdom — 101,342 — 101,342 Canada — 25,043 — 25,043 Other — 23,630 — 23,630 $ 1,353,664 $ 913,789 $ 190 $ 2,267,643 (1) Excludes revenues not derived from contracts with customers included in the Other segment. See Note 22 for further break-out of revenues by geography. Information on Remaining Performance Obligations and Revenue Recognized From Past Performance We do not disclose information about remaining performance obligations pertaining to contracts that have an original expected duration of one year or less. The transaction price allocated to remaining unsatisfied or partially unsatisfied performance obligations with an original expected duration exceeding one year was not material at September 30, 2023. Investment banking advisory revenues that are contingent upon completion of a specific milestone and fees associated with certain distribution services are also excluded as the fees are considered variable and not included in the transaction price at September 30, 2023. Contract Balances The timing of our revenue recognition may differ from the timing of payment by our customers. We record a receivable when revenue is recognized prior to payment and we have an unconditional right to payment. Alternatively, when payment precedes the provision of the related services, we record deferred revenue until the performance obligations are satisfied. We had receivables related to revenues from contracts with customers of $ 132.8 million and $ 141.2 million at September 30, 2023 and December 31, 2022, respectively, in other assets in the consolidated statements of financial condition. We had no significant impairments related to these receivables during the nine months ended September 30, 2023. Our deferred revenue primarily relates to retainer fees received in investment banking advisory engagements where the performance obligation has not yet been satisfied. Deferred revenue at September 30, 2023 and December 31, 2022 was $ 21.4 million and $ 12.8 million, respectively, and is included in accounts payable and accrued expenses in the consolidated statements of financial condition.

Interest Income and Interest Ex

Interest Income and Interest Expense	9 Months Ended
Interest Income and Interest Expense	Sep. 30, 2023
Banking and Thrift, Interest [Abstract]
Interest Income and Interest Expense	NOTE 19 – Interest Income and Interest Expense The components of interest income and interest expense are as follows (in thousands) : Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 Interest income: Loans held for investment, net $ 320,715 $ 208,365 $ 928,801 $ 480,053 Investment securities 120,670 71,420 345,201 151,728 Interest-bearing cash and federal funds sold 35,560 7,745 83,280 11,721 Margin balances 15,651 12,510 45,874 28,154 Other 12,602 4,155 36,376 10,728 $ 505,198 $ 304,195 $ 1,439,532 $ 682,384 Interest expense: Bank deposits $ 198,197 $ 43,371 $ 506,847 $ 47,899 Senior notes 12,507 11,220 37,519 33,919 Other 9,832 5,165 22,258 4,729 $ 220,536 $ 59,756 $ 566,624 $ 86,547

Employee Incentive, Deferred Co

Employee Incentive, Deferred Compensation, and Retirement Plans	9 Months Ended
	Sep. 30, 2023
Share-Based Payment Arrangement, Recognized Amount [Abstract]
Employee Incentive, Deferred Compensation, and Retirement Plans	NOTE 20 – Employee Incentive, Deferred Compensation, and Retirement Plans We maintain an incentive stock plan and a wealth accumulation plan (“the Plan”) that provides for the granting of stock options, stock appreciation rights, restricted stock, performance awards, stock units, and debentures (collectively, “deferred awards”) to our associates. We are permitted to issue new shares under all stock award plans approved by shareholders or to reissue our treasury shares. Stock awards issued under our company’s incentive stock plan are granted at market value at the date of grant. Our deferred awards generally vest ratably over a one - to ten-year vesting period. Our stock-based compensation plans are administered by the Compensation Committee of the Board of Directors (“Compensation Committee”), which has the authority to interpret the plans, determine to whom awards may be granted under the plans, and determine the terms of each award. According to the incentive stock plan, we are authorized to grant an additional 5.0 million shares at September 30, 2023. Expense associated with our stock-based compensation, included in compensation and benefits expense in the consolidated statements of operations for our company’s incentive stock award plan was $ 35.2 million and $ 33.3 million for the three months ended September 30, 2023 and 2022, respectively, and $ 102.9 million and $ 101.1 million for the nine months ended September 30, 2023 and 2022, respectively. Expense associated with our debentures, included in compensation and benefits expense in the consolidated statements of operations was $ 27.2 million and $ 23.6 million for the three months ended September 30, 2023 and 2022, respectively, and $ 78.4 million and $ 67.8 million for the nine months ended September 30, 2023 and 2022, respectively. Deferred Awards A restricted stock unit represents the right to receive a share of the Company’s common stock at a designated time in the future without cash payment by the associate and is issued in lieu of cash incentive, principally for deferred compensation and employee retention plans. The restricted stock units vest on an annual basis over the next one to ten years and are distributable, if vested, at future specified dates. Restricted stock awards are restricted as to sale or disposition. These restrictions lapse over the next one to three years. The Company grants Performance-based Restricted Stock Units (“PRSUs”) to certain of its executive officers. Under the terms of the grants, the number of PRSUs that will vest and convert to shares will be based on the Company’s achievement of the pre-determined performance objectives during the performance period. The PRSUs will be measured over a four-year performance period and vested over a five-year period. Any resulting delivery of shares for PRSUs granted as part of compensation will occur after four years for 80 % of the earned award, and in the fifth year for the remaining 20 % of the earned award. The number of shares converted has the potential to range from 0 % to 200 % based on how the Company performs during the performance period. Compensation expense is amortized over the service period based on the fair value of the deferred award on the grant date. The Company’s pre-determined performance objectives must be met for the awards to vest. Associates forfeit unvested deferred awards upon termination of employment with a corresponding reversal of compensation expense. Certain deferred awards may continue to vest under certain circumstances as described in the Plan. At September 30, 2023, the total number of restricted stock units, PRSUs, and restricted stock awards outstanding was 16.2 million, of which 14.1 million were unvested. At September 30, 2023, there was unrecognized compensation cost for deferred awards of approximately $ 759.0 million, which is expected to be recognized over a weighted-average period of 2.5 years. Deferred Compensation Plans The Plan is provided to certain revenue producers, officers, and key administrative associates, whereby a certain percentage of their incentive compensation is deferred as defined by the Plan into company stock units, restricted stock, and debentures. Participants may elect to defer a portion of their incentive compensation. Deferred awards generally vest over a one - to ten-year period and are distributable upon vesting or at future specified dates. Deferred compensation costs are amortized on a straight-line basis over the vesting period. Elective deferrals are 100 % vested. Additionally, the Plan allows Stifel financial advisors who achieve certain levels of production the option to defer a certain percentage of their gross commissions. As stipulated by the Plan, the financial advisors will defer 5 % of their gross commissions. The mandatory deferral is split between company restricted stock units and debentures. They have the option to defer an additional 1 % of gross commissions into company stock units. In addition, certain revenue producers, upon joining the Company, may receive company stock units in lieu of transition cash payments. Deferred compensation related to these awards generally vests over a one - to eight-year period. Deferred compensation costs are amortized on a straight-line basis over the deferral period. Profit Sharing Plan Eligible U.S. associates of the Company who have met certain service requirements may participate in the Stifel Financial Corp. Profit Sharing 401(k) Plan (the “401(k) Plan”). Associates are permitted within limitations imposed by tax law to make pre-tax contributions to the 401(k) Plan. We may match certain associate contributions or make additional contributions to the 401(k) Plan at our discretion. Our contributions to the 401(k) Plan, included in compensation and benefits in the consolidated statements of operations, were $ 4.3 million and $ 4.3 million for the three months ended September 30, 2023 and 2022, respectively and $ 13.2 million and $ 12.2 million for the nine months ended September 30, 2023 and 2022, respectively.

Off-Balance Sheet Credit Risk

Off-Balance Sheet Credit Risk	9 Months Ended
Off-Balance Sheet Credit Risk	Sep. 30, 2023
Concentration Risks, Types, No Concentration Percentage [Abstract]
Off-Balance Sheet Credit Risk	NOTE 21 – Off-Balance Sheet Credit Risk In the normal course of business, we execute, settle, and finance customer and proprietary securities transactions. These activities expose our company to off-balance sheet risk in the event that customers or other parties fail to satisfy their obligations. In accordance with industry practice, securities transactions generally settle within two business days after trade date. Should a customer or broker fail to deliver cash or securities as agreed, we may be required to purchase or sell securities at unfavorable market prices. We borrow and lend securities to facilitate the settlement process and finance transactions, utilizing customer margin securities held as collateral. We monitor the adequacy of collateral levels on a daily basis. We periodically borrow from banks on a collateralized basis, utilizing firm and customer margin securities in compliance with SEC rules. Should the counterparty fail to return customer securities pledged, we are subject to the risk of acquiring the securities at prevailing market prices in order to satisfy our customer obligations. We control our exposure to credit risk by continually monitoring our counterparties’ positions, and where deemed necessary, we may require a deposit of additional collateral and/or a reduction or diversification of positions. Our company sells securities it does not currently own (short sales) and is obligated to subsequently purchase such securities at prevailing market prices. We are exposed to risk of loss if securities prices increase prior to closing the transactions. We control our exposure to price risk from short sales through daily review and setting position and trading limits. We manage our risks associated with the aforementioned transactions through position and credit limits and the continuous monitoring of collateral. Additional collateral is required from customers and other counterparties when appropriate. We have accepted collateral in connection with resale agreements, securities borrowed transactions, and customer margin loans. Under many agreements, we are permitted to sell or repledge these securities held as collateral and use these securities to enter into securities lending arrangements or to deliver to counterparties to cover short positions. At September 30, 2023 and December 31, 2022, the fair value of securities accepted as collateral where we are permitted to sell or repledge the securities was $ 1.7 billion and $ 1.8 billion, respectively, and the fair value of the collateral that had been sold or repledged was $ 409.0 million and $ 212.0 million, respectively. We enter into interest rate derivative contracts 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. Our derivative financial instruments are principally used to manage differences in the amount, timing, and duration of our known or expected cash payments related to certain variable-rate affiliated deposits. Interest rate swaps designated as cash flow hedges involve the receipt of variable-rate amounts from a counterparty in exchange for us making fixed-rate payments. Our interest rate hedging strategies may not work in all market environments and, as a result, may not be effective in mitigating interest rate risk. Derivatives’ notional contract amounts are not reflected as assets or liabilities in the consolidated statements of financial condition. Rather, the market or fair value of the derivative transactions are reported in the consolidated statements of financial condition as other assets or accounts payable and accrued expenses, as applicable. For a complete discussion of our activities related to derivative instruments, see Note 12 in the notes to consolidated financial statements. In the ordinary course of business, Stifel Bancorp has commitments to originate loans, standby letters of credit, and lines of credit. Commitments to originate loans are agreements to lend to a customer as long as there is no violation of any condition established by the contract. These commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. Since a portion of the commitments may expire without being drawn upon, the total commitment amounts do not necessarily represent future cash commitments. Each customer’s creditworthiness is evaluated on a case-by-case basis. The amount of collateral obtained, if necessary, is based on the credit evaluation of the counterparty. Collateral held varies, but may include accounts receivable, inventory, property, plant and equipment, commercial real estate, and residential real estate. At September 30, 2023 and December 31, 2022, Stifel Bancorp had outstanding commitments to originate loans aggregating $ 214.3 million and $ 164.6 million, respectively. The commitments extended over varying periods of time, with all commitments at September 30, 2023, scheduled to be disbursed in the following three months. Through Stifel Bancorp, in the normal course of business, we originate residential mortgage loans and sell them to investors. We may be required to repurchase mortgage loans that have been sold to investors in the event there are breaches of certain representations and warranties contained within the sales agreements. We may be required to repurchase mortgage loans that were sold to investors in the event that there was inadequate underwriting or fraud, or in the event that the loans become delinquent shortly after they are originated. We also may be required to indemnify certain purchasers and others against losses they incur in the event of breaches of representations and warranties and in various other circumstances, and the amount of such losses could exceed the repurchase amount of the related loans. Consequently, we may be exposed to credit risk associated with sold loans. Standby letters of credit are irrevocable conditional commitments issued by Stifel Bancorp to guarantee the performance of a customer to a third party. Financial standby letters of credit are primarily issued to support public and private borrowing arrangements, including commercial paper, bond financing, and similar transactions. Performance standby letters of credit are issued to guarantee performance of certain customers under non-financial contractual obligations. The credit risk involved in issuing standby letters of credit is essentially the same as that involved in extending loans to customers. Should Stifel Bancorp be obligated to perform under the standby letters of credit, it may seek recourse from the customer for reimbursement of amounts paid. At September 30, 2023 and December 31, 2022, Stifel Bancorp had outstanding letters of credit totaling $ 33.6 million and $ 22.9 million, respectively. A majority of the standby letters of credit commitments at September 30, 2023, have expiration terms that are less than one year . Lines of credit are agreements to lend to a customer as long as there is no violation of any condition established in the contract. Lines of credit generally have fixed expiration dates. Stifel Bancorp uses the same credit policies in granting lines of credit as it does for on-balance sheet instruments. At September 30, 2023 and December 31, 2022, Stifel Bancorp had granted unused lines of credit to commercial and consumer borrowers aggregating $ 6.0 billion and $ 6.1 billion, respectively. We are required to evaluate our loan portfolio for any expected losses with recognition of an allowance for credit losses, when applicable. At September 30, 2023 and December 31, 2022, the expected credit losses for unfunded lending commitments was $ 34.0 million and $ 36.2 million, respectively.

Segment Reporting

Segment Reporting	9 Months Ended
Segment Reporting	Sep. 30, 2023
Segment Reporting [Abstract]
Segment Reporting	NOTE 22 – Segment Reporting We currently operate through the following three business segments: Global Wealth Management, Institutional Group, and various corporate activities combined in the Other segment. Our Global Wealth Management segment consists of two businesses, the Private Client Group and Stifel Bancorp. The Private Client Group includes branch offices and independent contractor offices of our broker-dealer subsidiaries located throughout the United States. These branches provide securities brokerage services, including the sale of equities, mutual funds, fixed income products, and insurance, as well as offering banking products to their clients through our bank subsidiaries, which provide residential, consumer, and commercial lending, as well as FDIC-insured deposit accounts to customers of our private client group and to the general public. The Institutional Group segment includes institutional sales and trading. It provides securities brokerage, trading, and research services to institutions, with an emphasis on the sale of equity and fixed income products. This segment also includes the management of and participation in underwritings for both corporate and public finance (exclusive of sales credits generated through the private client group, which are included in the Global Wealth Management segment), merger and acquisition, and financial advisory services. The Other segment includes interest income from stock borrow activities, unallocated interest expense, interest income and gains and losses from investments held, amortization of stock-based awards, and all unallocated overhead cost associated with the execution of orders; processing of securities transactions; custody of client securities; receipt, identification, and delivery of funds and securities; compliance with regulatory and legal requirements; internal financial accounting and controls; and general administration and acquisition charges. Information concerning operations in these segments of business for the three and nine months ended September 30, 2023 and 2022 is as follows (in thousands) : Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 Net revenues: (1) Global Wealth Management $ 768,558 $ 701,820 $ 2,283,934 $ 2,081,525 Institutional Group 256,888 339,408 867,025 1,182,135 Other 19,605 3,911 51,606 6,132 $ 1,045,051 $ 1,045,139 $ 3,202,565 $ 3,269,792 Income/(loss) before income taxes: Global Wealth Management $ 298,449 $ 279,935 $ 914,462 $ 750,500 Institutional Group ( 27,804 ) 40,000 ( 5,671 ) 209,620 Other ( 161,216 ) ( 114,166 ) ( 408,094 ) ( 308,701 ) $ 109,429 $ 205,769 $ 500,697 $ 651,419 (1) No individual client accounted for more than 10 percent of total net revenues for the three and nine months ended September 30, 2023 and 2022. The following table presents our company’s total assets on a segment basis at September 30, 2023 and December 31, 2022 (in thousands) : September 30, 2023 December 31, Global Wealth Management $ 32,601,555 $ 32,449,466 Institutional Group 4,779,831 4,285,212 Other 496,191 461,446 $ 37,877,577 $ 37,196,124 We have operations in the United States, United Kingdom, Europe, and Canada. The Company’s foreign operations are conducted through its wholly owned subsidiaries, SNEL and SNC. Substantially all long-lived assets are located in the United States. Revenues, classified by the major geographic areas in which they were earned for the three and nine months ended September 30, 2023 and 2022, were as follows (in thousands) : Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 United States $ 979,282 $ 987,770 $ 2,982,274 $ 3,085,241 United Kingdom 45,095 40,980 131,855 134,836 Canada 8,364 7,798 37,195 21,182 Other 12,310 8,591 51,241 28,533 $ 1,045,051 $ 1,045,139 $ 3,202,565 $ 3,269,792

Earnings Per Share ("EPS")

Earnings Per Share ("EPS")	9 Months Ended
Earnings Per Share ("EPS")	Sep. 30, 2023
Earnings Per Share [Abstract]
Earnings Per Share ("EPS")	NOTE 23 – Earnings Per Share (“EPS”) Basic EPS is computed by dividing earnings available to common shareholders by the weighted-average number of common shares outstanding. Diluted EPS reflects the potential dilution that could occur if securities or other contracts to issue common stock were exercised or converted into common stock or resulted in the issuance of common stock that then shared in the earnings of the entity. Diluted earnings per share include dilutive stock options and stock units under the treasury stock method. The following table sets forth the computation of basic and diluted earnings per share for the three and nine months ended September 30, 2023 and 2022 (in thousands, except per share data) : Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 Net income $ 68,161 $ 151,169 $ 360,052 $ 485,534 Preferred dividends 9,321 9,320 27,961 27,961 Net income available to common shareholders $ 58,840 $ 141,849 $ 332,091 $ 457,573 Shares for basic and diluted calculation: Average shares used in basic computation 106,068 108,767 107,580 109,017 Dilutive effect of stock options and units (1) 7,127 8,451 6,590 8,632 Average shares used in diluted computation 113,195 117,218 114,170 117,649 Earnings per common share: Basic $ 0.55 $ 1.30 $ 3.09 $ 4.20 Diluted $ 0.52 $ 1.21 $ 2.91 $ 3.89 (1) Diluted earnings per share is computed on the basis of the weighted-average number of shares of common stock plus the effect of dilutive potential common shares outstanding during the period using the treasury stock method. Diluted earnings per share include units. For the three and nine months ended September 30, 2023 and 2022, the anti-dilutive effect from restricted stock units was immaterial. Cash Dividends During the three and nine months ended September 30, 2023, we declared and paid cash dividends of $ 0.36 and $ 1.08 per common share. During the three and nine months ended September 30, 2022, we declared and paid cash dividends of $ 0.30 and $ 0.90 per common share.

Shareholders' Equity

Shareholders' Equity	9 Months Ended
Shareholders' Equity	Sep. 30, 2023
Equity [Abstract]
Shareholders' Equity	NOTE 24 – Shareholders’ Equity Share Repurchase Program We have an ongoing authorization from the Board of Directors to repurchase our common stock in the open market or in negotiated transactions. At September 30, 2023, the maximum number of shares that may yet be purchased under this plan was 4.2 million. The repurchase program has no expiration date. These purchases may be made on the open market or in privately negotiated transactions, depending upon market conditions and other factors. Repurchased shares may be used to meet obligations under our company’s employee benefit plans and for general corporate purposes. During the three months ended September 30, 2023, we repurchased $ 118.8 million, or 1.9 million shares using existing Board authorizations at an average price of $ 63.00 per share to meet obligations under our company’s employee benefit plans and for general corporate purposes. During the nine months ended September 30, 2023, we repurchased $ 300.2 million, or 4.8 million shares using existing Board authorizations at an average price of $ 62.14 per share to meet obligations under our company’s employee benefit plans and for general corporate purposes. There were no share repurchases during the three months ended September 30, 2022. During the nine months ended September 30, 2022, we repurchased $ 30.7 million, or 0.5 million shares using existing Board authorizations at an average price of $ 60.68 per share to meet obligations under our company’s employee benefit plans and for general corporate purposes. Issuance of Common Stock During the nine months ended September 30, 2023, we issued 2.6 million shares, which were primarily reissued from treasury. Share issuances were primarily a result of the vesting and conversion transactions under our incentive stock award plans.

Variable Interest Entities

Variable Interest Entities	9 Months Ended
Variable Interest Entities	Sep. 30, 2023
Variable Interest Entity, Not Primary Beneficiary, Disclosures [Abstract]
Variable Interest Entities	NOTE 25 – Variable Interest Entities Our variable interests in VIEs include debt and equity interests, commitments, certain fees, the establishment of Stifel Financial Capital Trusts, and our issuance of a convertible promissory note. Our involvement with VIEs arises primarily from the following activities: purchases of securities in connection with our trading and secondary market-making activities; retained interests held as a result of securitization activities; and loans to, investments in, and fees from various investment vehicles. Partnership Interests We have formed several non-consolidated investment funds with third-party investors that are typically organized as limited liability companies (“LLCs”) or limited partnerships. These investment vehicles have assets primarily consisting of private and public equity investments. For those funds where we act as the general partner, our company’s economic interest is generally limited to management fee arrangements as stipulated by the fund operating agreements. We have generally provided the third-party investors with rights to terminate the funds or to remove us as the general partner. We have concluded that we are not the primary beneficiary of these VIEs, and therefore, we do not consolidate these entities. Debt and Equity Investments Our exposure to loss is limited to the total of our carrying value. These investment vehicles have net assets, primarily consisting of cash and cash equivalents, aircraft, aircraft engine-related assets, receivables, other assets, and debt. For these investments, our involvement is primarily limited to management fee arrangements as stipulated by the operating agreements. We have concluded that we are not the primary beneficiary of these VIEs, and therefore, we do not consolidate these entities. The following tables present the aggregate assets, liabilities, and our exposure to loss from those VIEs in which we hold a variable interest, but as to which we have concluded we are not the primary beneficiary (in thousands) : September 30, 2023 Aggregate Assets Aggregate Liabilities Our Risk of Loss Debt and Equity Investments $ 401,245 $ 274,342 $ 27,627 Partnership Interests 336,271 768 — $ 737,516 $ 275,110 $ 27,627 December 31, 2022 Aggregate Assets Aggregate Liabilities Our Risk of Loss Debt and Equity Investments $ 388,408 $ 296,375 $ 14,776 Partnership Interests 402,703 1,180 — $ 791,111 $ 297,555 $ 14,776 Debenture to Stifel Financial Capital Trusts We have completed private placements of cumulative trust preferred securities through Stifel Financial Capital Trust II, Stifel Financial Capital Trust III, and Stifel Financial Capital Trust IV (collectively, the “Trusts”). The Trusts are non-consolidated wholly owned business trust subsidiaries of our company and were established for the limited purpose of issuing trust securities to third parties and lending the proceeds to our company. The trust preferred securities represent an indirect interest in junior subordinated debentures purchased from our company by the Trusts, and we effectively provide for the full and unconditional guarantee of the securities issued by the Trusts. We make timely payments of interest to the Trusts as required by contractual obligations, which are sufficient to cover payments due on the securities issued by the Trusts, and believe that it is unlikely that any circumstances would occur that would make it necessary for our company to make payments related to these Trusts other than those required under the terms of the debenture agreements and the trust preferred securities agreements. The Trusts were determined to be VIEs because the holders of the equity investment at risk do not have adequate decision-making ability over the Trust’s activities. Our investment in the Trusts is not a variable interest, because equity interests are variable interests only to the extent that the investment is considered to be at risk. Because our investment was funded by the Trusts, it is not considered to be at risk.

Subsequent Events

Subsequent Events	9 Months Ended
Subsequent Events	Sep. 30, 2023
Subsequent Events [Abstract]
Subsequent Events	NOTE 26 – Subsequent Events We evaluate subsequent events that have occurred after the balance sheet date but before the financial statements are issued. There are two types of subsequent events: (1) recognized, or those that provide additional evidence about conditions that existed at the date of the balance sheet, including the estimates inherent in the process of preparing financial statements, and (2) non-recognized, or those that provide evidence about conditions that did not exist at the date of the balance sheet but arose after that date. Based on the evaluation, we did not identify any recognized and non-recognized subsequent events that would have required adjustment to the consolidated financial statements.

Nature of Operations, Basis o_2

Nature of Operations, Basis of Presentation, and Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Nature Of Operations	Nature of Operations Stifel Financial Corp. (the “Company”), through its wholly owned subsidiaries, is principally engaged in retail brokerage; securities trading; investment banking; investment advisory; retail, consumer, and commercial banking; and related financial services. Our major geographic area of concentration is throughout the United States, with a growing presence in the United Kingdom, Europe, and Canada. Our company’s principal customers are individual investors, corporations, municipalities, and institutions.
Basis Of Presentation	Basis of Presentation The consolidated financial statements include Stifel Financial Corp. and its wholly owned subsidiaries, principally Stifel, Nicolaus & Company, Incorporated (“Stifel”), Keefe, Bruyette & Woods, Inc., Stifel Bancorp, Inc. (“Stifel Bancorp”), Stifel Nicolaus Canada Inc. (“SNC”), and Stifel Nicolaus Europe Limited (“SNEL”). Unless otherwise indicated, the terms “we,” “us,” “our,” or “our company” in this report refer to Stifel Financial Corp. and its wholly owned subsidiaries. We have prepared the accompanying unaudited consolidated financial statements pursuant to the rules and regulations of the Securities and Exchange Commission (the “SEC”). Pursuant to these rules and regulations, we have omitted certain information and footnote disclosures we normally include in our annual consolidated financial statements prepared in accordance with U.S. generally accepted accounting principles. In management’s opinion, we have made all adjustments (consisting only of normal, recurring adjustments, except as otherwise noted) necessary to fairly present our financial position, results of operations and cash flows. Our interim period operating results do not necessarily indicate the results that may be expected for any other interim period or for the full fiscal year. These financial statements and accompanying notes should be read in conjunction with the consolidated financial statements and the notes thereto in our Annual Report on Form 10-K for the year ended December 31, 2022 on file with the SEC. Certain amounts from prior periods have been reclassified to conform to the current period’s presentation. The effect of these reclassifications on our company’s previously reported consolidated financial statements was not material.
Consolidation Policies	Consolidation Policies The consolidated financial statements include the accounts of Stifel Financial Corp. and its subsidiaries. All material intercompany balances and transactions have been eliminated in consolidation. We have investments or interests in other entities for which we must evaluate whether to consolidate by determining whether we have a controlling financial interest or are considered to be the primary beneficiary. Under our current consolidation policy we consolidate those entities where we have the power to direct the activities of the entity that most significantly impact the entity’s economic performance and the obligation to absorb losses of the entity or the rights to receive benefits from the entity that could potentially be significant to the entity. We determine whether we are the primary beneficiary of a variable interest entity (“VIE”) by performing an analysis of the VIE’s control structure, expected benefits and losses, and expected residual returns. This analysis includes a review of, among other factors, the VIE’s capital structure, contractual terms, which interests create or absorb benefits or losses, variability, related party relationships, and the design of the VIE. We reassess our evaluation of whether an entity is a VIE when certain reconsideration events occur. We reassess our determination of whether we are the primary beneficiary of a VIE on an ongoing basis based on current facts and circumstances. See Note 25 for additional information on VIEs.

New Accounting Pronouncements (

New Accounting Pronouncements (Policies)	9 Months Ended
New Accounting Pronouncements (Policies)	Sep. 30, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Recently Issued Accounting Guidance	Recently Adopted Accounting Guidance Financial Instruments – Credit Losses In March 2022, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2022-02, “Financial Instruments – Credit Losses (ASC 326): Troubled Debt Restructurings (TDRs) and Vintage Disclosures,” which eliminates the accounting guidance for TDRs, now requiring an entity to determine whether a modification results in a new loan or a continuation of an existing loan, as well as expanding disclosures related to modifications and requires disclosure of current period gross write-offs of financing receivables within the vintage disclosures table. The accounting update is effective for interim and annual periods beginning after December 15, 2022 (January 1, 2023, for our company), and early adoption is permitted. The adoption of the accounting update did not have a material impact on our consolidated financial statements. Recently Issued Accounting Guidance Fair Value Measurement In June 2022, the FASB issued ASU 2022-03, “Fair Value Measurement of Equity Securities Subject to Contractual Sale Restrictions” (ASU 2022-03), an update to ASC Topic 820 – Fair Value Measurement. The amendments in ASU 2022-03 clarify that a contractual restriction on the sale of an equity security is not considered part of the unit of account of the equity security and, therefore, is not considered in measuring fair value. The amendments clarify that an entity cannot, as a separate unit of account, recognize and measure a contractual sale restriction. The amendments require new disclosures related to equity securities subject to contractual sale restrictions, including the fair value of such equity securities, the nature and remaining duration of the corresponding restrictions and any circumstances that could cause a lapse in the restrictions. The amendments are effective for annual reporting periods beginning after December 15, 2023 (January 1, 2024, for our company) and for the interim periods within those annual reporting periods. Early adoption is permitted, including in an interim period. We are currently evaluating the impact that the accounting update will have on our consolidated financial statements. Leases In March 2023, the FASB issued ASU 2023-01, “Leases (Topic 842): Common Control Arrangements,” which requires entities to classify and account for leases with related parties on the basis of legally enforceable terms and conditions of the arrangement. The accounting update is effective for interim and annual periods beginning after December 15, 2023 (January 1, 2024, for our company), and early adoption is permitted. We are currently evaluating the impact that the accounting update will have on our consolidated financial statements.

Receivables From and Payables_2

Receivables From and Payables to Brokers, Dealers and Clearing Organizations (Tables)	9 Months Ended
	Sep. 30, 2023
Due to and from Broker-Dealers and Clearing Organizations [Abstract]
Amounts Receivable from Brokers, Dealers, and Clearing Organizations	Amounts receivable from brokers, dealers, and clearing organizations at September 30, 2023 and December 31, 2022, included (in thousands) : September 30, 2023 December 31, Deposits paid for securities borrowed $ 180,156 $ 219,052 Receivables from clearing organizations 171,303 186,800 Securities failed to deliver 11,549 12,239 $ 363,008 $ 418,091
Amounts Payable to Brokers, Dealers, and Clearing Organizations	Amounts payable to brokers, dealers, and clearing organizations at September 30, 2023 and December 31, 2022, included (in thousands) : September 30, 2023 December 31, Deposits received from securities loaned $ 104,570 $ 68,105 Securities failed to receive 80,231 12,385 Payable to clearing organizations 33,115 14,464 $ 217,916 $ 94,954

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
Fair Value Measurements (Tables)	Sep. 30, 2023
Fair Value Disclosures [Abstract]
Schedule Of Fair Value Of Investments In And Unfunded Commitments To Funds Measured At Net Asset Value	The table below presents the fair value of our investments in, and unfunded commitments to, funds that are measured at NAV as of September 30, 2023 and December 31, 2022 (in thousands) : September 30, 2023 December 31, 2022 Fair value of investments Unfunded commitments Fair value of investments Unfunded commitments Partnership interests $ 22,413 $ 7,056 $ 18,817 $ 9,853 Mutual funds 3,278 — 4,728 — Money market funds 1,870 — 1,650 — Private equity funds 407 1,181 417 1,181 Total $ 27,968 $ 8,237 $ 25,612 $ 11,034
Fair Value Of Assets And Liabilities Measured On Recurring Basis	Assets and liabilities measured at fair value on a recurring basis as of September 30, 2023, are presented below (in thousands) : September 30, 2023 Total Level 1 Level 2 Level 3 Financial instruments owned: U.S. government securities $ 10,479 $ 10,479 $ — $ — U.S. government agency securities 158,086 — 158,086 — Agency mortgage-backed securities 199,294 — 199,294 — Asset-backed securities 63,046 — 61,377 1,669 Corporate securities: Fixed income securities 321,842 197 321,645 — Equity securities 43,091 42,817 274 — State and municipal securities 163,139 — 163,139 — Other (1) 97,768 — 9,251 88,517 Total financial instruments owned 1,056,745 53,493 913,066 90,186 Available-for-sale securities: U.S. government agency securities 2,135 — 2,135 — State and municipal securities 2,294 — 2,294 — Mortgage-backed securities: Agency 715,250 — 715,250 — Commercial 65,695 — 65,695 — Non-agency 332 — 332 — Corporate fixed income securities 537,850 — 537,850 — Asset-backed securities 188,677 — 188,677 — Total available-for-sale securities 1,512,233 — 1,512,233 — Investments: Corporate equity securities 24,877 10,888 2,111 11,878 Auction rate securities 783 — — 783 Other (2) 39,396 71 115 39,210 Investments in funds and partnerships measured at NAV 26,098 Total investments 91,154 10,959 2,226 51,871 Cash equivalents measured at NAV 1,870 Derivative contracts (3) 166,038 — 166,038 — $ 2,828,040 $ 64,452 $ 2,593,563 $ 142,057 (1) Includes syndicated loans and non-agency mortgage-backed securities. (2) Primarily includes private company investments. (3) Included in other assets in the consolidated statements of financial condition. September 30, 2023 Total Level 1 Level 2 Level 3 Liabilities: Financial instruments sold, but not yet purchased: U.S. government securities $ 334,630 $ 334,630 $ — $ — U.S. government agency securities 5,439 — 5,439 — Agency mortgage-backed securities 70,344 — 70,344 — Corporate securities: Fixed income securities 135,080 — 135,080 — Equity securities 20,114 20,114 — — Other (4) 12,683 — 6,974 5,709 Total financial instruments sold, but not yet purchased 578,290 354,744 217,837 5,709 Derivative contracts (5) 166,015 — 166,015 — $ 744,305 $ 354,744 $ 383,852 $ 5,709 (4) Includes asset-backed securities and syndicated loans. (5) Included in accounts payable and accrued expenses in the consolidated statements of financial condition. Assets and liabilities measured at fair value on a recurring basis as of December 31, 2022, are presented below (in thousands) : December 31, 2022 Total Level 1 Level 2 Level 3 Financial instruments owned: U.S. government securities $ 38,956 $ 38,956 $ — $ — U.S. government agency securities 73,608 — 73,608 — Agency mortgage-backed securities 172,642 — 172,642 — Asset-backed securities 8,270 — 6,091 2,179 Corporate securities: Fixed income securities 202,169 689 201,480 — Equity securities 38,129 37,383 746 — State and municipal securities 126,237 — 126,237 — Other (1) 71,741 — 1,853 69,888 Total financial instruments owned 731,752 77,028 582,657 72,067 Available-for-sale securities: U.S. government agency securities 2,148 — 2,148 — State and municipal securities 2,351 — 2,351 — Mortgage-backed securities: Agency 791,022 — 791,022 — Commercial 66,113 — 66,113 — Non-agency 388 — 388 — Corporate fixed income securities 566,294 — 566,294 — Asset-backed securities 207,725 — 207,725 — Total available-for-sale securities 1,636,041 — 1,636,041 — Investments: Corporate equity securities 23,597 9,928 1,791 11,878 Auction rate securities 14,681 — — 14,681 Other (2) 37,136 117 45 36,974 Investments in funds and partnerships measured at NAV 23,962 Total investments 99,376 10,045 1,836 63,533 Cash equivalents measured at NAV 1,650 Derivative contracts (3) 142,042 — 142,042 — $ 2,610,861 $ 87,073 $ 2,362,576 $ 135,600 (1) Includes syndicated loans, non-agency mortgage-backed securities, and sovereign debt. (2) Primarily includes private company investments. (3) Included in other assets in the consolidated statements of financial condition. December 31, 2022 Total Level 1 Level 2 Level 3 Liabilities: Financial instruments sold, but not yet purchased: U.S. government securities $ 254,265 $ 254,265 $ — $ — U.S. government agency securities 3,971 — 3,971 — Agency mortgage-backed securities 44,793 — 44,793 — Corporate securities: Fixed income securities 134,381 88 134,293 — Equity securities 11,590 11,590 — — Other (4) 5,817 — 36 5,781 Total financial instruments sold, but not yet purchased 454,817 265,943 183,093 5,781 Derivative contracts (5) 142,028 — 142,028 — $ 596,845 $ 265,943 $ 325,121 $ 5,781 (4) Includes syndicated loans and state and municipal securities. (5) Included in accounts payable and accrued expenses in the consolidated statements of financial condition.
Schedule Of Changes In Fair Value Associated With Level 3 Financial Instruments	The following table summarizes the changes in fair value associated with Level 3 financial instruments during the three months ended September 30, 2023 (in thousands) : Three Months Ended September 30, 2023 Financial instruments owned Investments Asset-Backed Securities Syndicated Loans Corporate Equity Securities Auction Rate Other Balance at June 30, 2023 $ 1,979 $ 105,541 $ 11,878 $ 14,683 $ 37,342 Unrealized gains/(losses) — ( 158 ) — — 368 Realized gains/(losses) 502 ( 1,323 ) — ( 232 ) — Purchases — 13,909 — — 1,500 Sales — ( 26,869 ) — — — Redemptions ( 812 ) ( 2,583 ) — ( 13,668 ) — Net change ( 310 ) ( 17,024 ) — ( 13,900 ) 1,868 Balance at September 30, 2023 $ 1,669 $ 88,517 $ 11,878 $ 783 $ 39,210 The following table summarizes the change in fair value associated with Level 3 financial instruments during the nine months ended September 30, 2023 (in thousands): Nine Months Ended September 30, 2023 Financial instruments owned Investments Asset-Backed Securities Syndicated Loans Corporate Equity Securities Auction Rate Other Balance at December 31, 2022 $ 2,179 $ 69,888 $ 11,878 $ 14,681 $ 36,974 Unrealized gains/(losses) — ( 72 ) — 2 736 Realized gains/(losses) 728 ( 1,396 ) — ( 232 ) — Purchases — 68,669 — — 1,500 Sales — ( 31,438 ) — — — Redemptions ( 1,238 ) ( 17,134 ) — ( 13,668 ) — Net change ( 510 ) 18,629 — ( 13,898 ) 2,236 Balance at September 30, 2023 $ 1,669 $ 88,517 $ 11,878 $ 783 $ 39,210
Schedule Of Fair Value Of Financial Instruments	The following reflects the fair value of financial instruments as of September 30, 2023 and December 31, 2022, whether or not recognized in the consolidated statements of financial condition at fair value (in thousands) . September 30, 2023 December 31, 2022 Carrying Estimated Carrying Estimated Financial assets: Cash and cash equivalents $ 2,768,353 $ 2,768,353 $ 2,199,985 $ 2,199,985 Cash segregated for regulatory purposes 33,399 33,399 29,017 29,017 Securities purchased under agreements to resell 412,367 412,367 348,162 348,162 Financial instruments owned 1,056,745 1,056,745 731,752 731,752 Available-for-sale securities 1,512,233 1,512,233 1,636,041 1,636,041 Held-to-maturity securities 5,900,379 5,811,600 5,990,451 5,738,418 Bank loans 20,292,553 19,353,782 20,465,092 19,752,043 Loans held for sale 142,617 142,617 156,912 156,912 Investments 91,154 91,154 99,376 99,376 Derivative contracts (1) 166,038 166,038 142,042 142,042 Financial liabilities: Securities sold under agreements to repurchase $ 408,950 $ 408,950 $ 212,011 $ 212,011 Bank deposits 27,594,358 25,358,517 27,117,111 24,274,224 Financial instruments sold, but not yet purchased 578,290 578,290 454,817 454,817 Senior notes 1,115,360 1,020,868 1,114,554 1,016,755 Debentures to Stifel Financial Capital Trusts 60,000 58,262 60,000 53,385 Derivative contracts (2) 166,015 166,015 142,028 142,028 (1) Included in other assets in the consolidated statements of financial condition. (2) Included in accounts payable and accrued expenses in the consolidated statements of financial condition.
Estimated Fair Values Of Financial Instruments Not Measured At Fair Value	The following tables present the estimated fair values of financial instruments not measured at fair value on a recurring basis as of September 30, 2023 and December 31, 2022 (in thousands) : September 30, 2023 Total Level 1 Level 2 Level 3 Financial assets: Cash $ 2,766,483 $ 2,766,483 $ — $ — Cash segregated for regulatory purposes 33,399 33,399 — — Securities purchased under agreements to resell 412,367 — 412,367 — Held-to-maturity securities 5,811,600 — 5,717,202 94,398 Bank loans 19,353,782 — 19,353,782 — Loans held for sale 142,617 — 142,617 — Financial liabilities: Securities sold under agreements to repurchase $ 408,950 $ — $ 408,950 $ — Bank deposits 25,358,517 — 25,358,517 — Senior notes 1,020,868 1,020,868 — — Debentures to Stifel Financial Capital Trusts 58,262 — — 58,262 December 31, 2022 Total Level 1 Level 2 Level 3 Financial assets: Cash $ 2,198,335 $ 2,198,335 $ — $ — Cash segregated for regulatory purposes 29,017 29,017 — — Securities purchased under agreements to resell 348,162 218,515 129,647 — Held-to-maturity securities 5,738,418 — 5,624,042 114,376 Bank loans 19,752,043 — 19,752,043 — Loans held for sale 156,912 — 156,912 — Financial liabilities: Securities sold under agreements to repurchase $ 212,011 $ — $ 212,011 $ — Bank deposits 24,274,224 — 24,274,224 — Senior notes 1,016,755 1,016,755 — — Debentures to Stifel Financial Capital Trusts 53,385 — — 53,385

Financial Instruments Owned a_2

Financial Instruments Owned and Financial Instruments Sold, But Not Yet Purchased (Tables)	9 Months Ended
	Sep. 30, 2023
Investments, Debt and Equity Securities [Abstract]
Components of Trading Securities Owned and Trading Securities Sold, But Not Yet Purchased	The components of financial instruments owned and financial instruments sold, but not yet purchased, at September 30, 2023 and December 31, 2022 are as follows (in thousands) : September 30, 2023 December 31, Financial instruments owned: U.S. government securities $ 10,479 $ 38,956 U.S. government agency securities 158,086 73,608 Agency mortgage-backed securities 199,294 172,642 Asset-backed securities 63,046 8,270 Corporate securities: Fixed income securities 321,842 202,169 Equity securities 43,091 38,129 State and municipal securities 163,139 126,237 Other (1) 97,768 71,741 $ 1,056,745 $ 731,752 Financial instruments sold, but not yet purchased: U.S. government securities $ 334,630 $ 254,265 U.S. government agency securities 5,439 3,971 Agency mortgage-backed securities 70,344 44,793 Corporate securities: Fixed income securities 135,080 134,381 Equity securities 20,114 11,590 Other (2) 12,683 5,817 $ 578,290 $ 454,817 (1) Includes syndicated loans, non-agency mortgage-backed securities, and sovereign debt. (2) Includes asset-backed securities, syndicated loans, and state and municipal securities.

Available-for-Sale and Held-t_2

Available-for-Sale and Held-to-Maturity Securities (Tables)	9 Months Ended
Available-for-Sale and Held-to-Maturity Securities (Tables)	Sep. 30, 2023
Investments, Debt and Equity Securities [Abstract]
Schedule of Amortized Cost and Fair Values of Available for Sale Securities and Held to Maturity Securities	The following tables provide a summary of the amortized cost and fair values of the available-for-sale securities and held-to-maturity securities at September 30, 2023 and December 31, 2022 (in thousands) : September 30, 2023 Amortized Gross (1) Gross (1) Fair Value Available-for-sale securities U.S. government agency securities $ 2,368 $ — $ ( 233 ) $ 2,135 State and municipal securities 2,350 — ( 56 ) 2,294 Mortgage-backed securities: Agency 876,007 — ( 160,757 ) 715,250 Commercial 70,563 — ( 4,868 ) 65,695 Non-agency 351 — ( 19 ) 332 Corporate fixed income securities 618,164 5 ( 80,319 ) 537,850 Asset-backed securities 192,936 — ( 4,259 ) 188,677 $ 1,762,739 $ 5 $ ( 250,511 ) $ 1,512,233 Held-to-maturity securities (2) Asset-backed securities $ 5,900,379 $ 5,476 $ ( 94,255 ) $ 5,811,600 December 31, 2022 Amortized Gross (1) Gross (1) Fair Value Available-for-sale securities U.S. government agency securities $ 2,345 $ 6 $ ( 203 ) $ 2,148 State and municipal securities 2,350 1 — 2,351 Mortgage-backed securities: Agency 921,676 — ( 130,654 ) 791,022 Commercial 71,462 — ( 5,349 ) 66,113 Non-agency 442 — ( 54 ) 388 Corporate fixed income securities 643,379 18 ( 77,103 ) 566,294 Asset-backed securities 221,565 126 ( 13,966 ) 207,725 $ 1,863,219 $ 151 $ ( 227,329 ) $ 1,636,041 Held-to-maturity securities (2) Asset-backed securities $ 5,990,451 $ 3,213 $ ( 255,246 ) $ 5,738,418 (1) Unrealized gains/(losses) related to available-for-sale securities are reported in accumulated other comprehensive income. Held-to-maturity securities are carried in the consolidated statements of financial condition at amortized cost, and the changes in the value of these securities, other than impairment charges, are not reported on the consolidated financial statements.
Schedule of Amortized Cost and Fair Values of Debt Securities by Contractual Maturity	The table below summarizes the amortized cost and fair values of our securities by contractual maturity at September 30, 2023 and December 31, 2022 (in thousands) . Expected maturities may differ significantly from contractual maturities, as issuers may have the right to call or prepay obligations with or without call or prepayment penalties. September 30, 2023 December 31, 2022 Amortized Fair Value Amortized Fair Value Available-for-sale securities Within one year $ 86,971 $ 85,380 $ 16,047 $ 15,877 After one year through three years 206,234 191,070 185,012 178,776 After three years through five years 38,502 32,679 123,696 108,707 After five years through ten years 456,440 386,538 442,055 380,362 After ten years 974,592 816,566 1,096,409 952,319 $ 1,762,739 $ 1,512,233 $ 1,863,219 $ 1,636,041 Held-to-maturity securities After five years through ten years $ 2,765,980 $ 2,725,890 $ 2,413,239 $ 2,323,608 After ten years 3,134,399 3,085,710 3,577,212 3,414,810 $ 5,900,379 $ 5,811,600 $ 5,990,451 $ 5,738,418
Schedule of Contractual Maturities	The maturities of our available-for-sale (fair value) and held-to-maturity (amortized cost) securities at September 30, 2023, are as follows ( in thousands ): Within 1 1-5 Years 5-10 Years After 10 Total Available-for-sale securities (1) U.S. government agency securities $ — $ 2,135 $ — $ — $ 2,135 State and municipal securities — 2,294 — — 2,294 Mortgage-backed securities: Agency — 295 92,085 622,870 715,250 Commercial — — — 65,695 65,695 Non-agency — — 332 — 332 Corporate fixed income securities 85,380 219,025 233,445 — 537,850 Asset-backed securities — — 60,676 128,001 188,677 $ 85,380 $ 223,749 $ 386,538 $ 816,566 $ 1,512,233 Held-to-maturity securities Asset-backed securities $ — $ — $ 2,765,980 $ 3,134,399 $ 5,900,379 (1) Due to the immaterial amount of income recognized on tax-exempt securities, yields were not calculated on a tax-equivalent basis.
Schedule of Gross Unrealized Losses and Estimated Fair Value by Length of Time	The following table shows the gross unrealized losses and fair value of the Company’s investment securities with unrealized losses, aggregated by investment category and length of time the individual investment securities have been in continuous unrealized loss positions, at September 30, 2023 (in thousands) : Less than 12 months 12 months or more Total Gross Fair Value Gross Fair Value Gross Fair Value Available-for-sale securities U.S. government agency securities $ ( 8 ) $ 427 $ ( 225 ) $ 1,708 $ ( 233 ) $ 2,135 State and municipal securities ( 56 ) 2,294 — — ( 56 ) 2,294 Mortgage-backed securities: Agency ( 1,228 ) 24,100 ( 159,529 ) 691,150 ( 160,757 ) 715,250 Commercial — — ( 4,868 ) 65,695 ( 4,868 ) 65,695 Non-agency — — ( 19 ) 332 ( 19 ) 332 Corporate fixed income securities ( 235 ) 6,438 ( 80,084 ) 528,914 ( 80,319 ) 535,352 Asset-backed securities ( 1,649 ) 64,008 ( 2,610 ) 124,669 ( 4,259 ) 188,677 $ ( 3,176 ) $ 97,267 $ ( 247,335 ) $ 1,412,468 $ ( 250,511 ) $ 1,509,735
Schedule of Amortized Cost of Held-to-Maturity Securities by Credit Quality Indicator	The following table shows the amortized cost of our held-to-maturity securities by credit quality indicator at September 30, 2023 (in thousands) : AAA AA A C Total Held-to-maturity securities Asset-backed securities $ 1,156,155 $ 4,737,652 $ 5,000 $ 1,572 $ 5,900,379

Bank Loans (Tables)

Bank Loans (Tables)	9 Months Ended
Bank Loans (Tables)	Sep. 30, 2023
Receivables [Abstract]
Schedule of Balance and Associated Percentage of Each Major Loan Category in Bank Loan Portfolio	The following table presents the balance and associated percentage of each major loan category in our bank loan portfolio at September 30, 2023 and December 31, 2022 (in thousands, except percentages) : September 30, 2023 December 31, 2022 Balance Percent Balance Percent Residential real estate $ 7,957,027 38.9 % $ 7,371,671 35.8 % Commercial and industrial 4,367,671 21.4 4,897,176 23.8 Fund banking 4,114,889 20.1 4,182,641 20.3 Securities-based loans 2,317,631 11.3 2,724,551 13.2 Construction and land 851,709 4.2 593,191 2.9 Commercial real estate 670,907 3.3 675,599 3.3 Home equity lines of credit 123,995 0.6 107,136 0.5 Other 48,560 0.2 50,593 0.2 Gross bank loans 20,452,389 100.0 % 20,602,558 100.0 % Loans in process ( 8,509 ) ( 3,526 ) Unamortized loan fees, net ( 15,530 ) ( 22,287 ) Allowance for loan losses ( 135,797 ) ( 111,653 ) Loans held for investment, net $ 20,292,553 $ 20,465,092
Activity in Allowance for Loan Losses by Portfolio Segment	The following tables detail activity in the allowance for loan losses by portfolio segment for the three and nine months ended September 30, 2023 (in thousands) . Three Months Ended September 30, 2023 Beginning Provision Charge-offs Recoveries Ending Commercial and industrial $ 66,377 $ 8,584 $ ( 302 ) $ — $ 74,659 Commercial real estate 13,429 6,437 — — 19,866 Residential real estate 14,413 194 — — 14,607 Fund banking 12,178 ( 660 ) — — 11,518 Construction and land 12,645 ( 1,145 ) — — 11,500 Securities-based loans 3,086 ( 68 ) — — 3,018 Home equity lines of credit 168 27 — — 195 Other 385 49 — — 434 $ 122,681 $ 13,418 $ ( 302 ) $ — $ 135,797 Nine Months Ended September 30, 2023 Beginning Provision Charge-offs Recoveries Ending Commercial and industrial $ 54,143 $ 21,283 $ ( 920 ) $ 153 $ 74,659 Commercial real estate 12,897 6,969 — — 19,866 Residential real estate 20,441 ( 5,834 ) — — 14,607 Fund banking 11,711 ( 193 ) — — 11,518 Construction and land 8,568 2,932 — — 11,500 Securities-based loans 3,157 ( 139 ) — — 3,018 Home equity lines of credit 364 ( 169 ) — — 195 Other 372 62 — — 434 $ 111,653 $ 24,911 $ ( 920 ) $ 153 $ 135,797 The following tables detail activity in the allowance for loan losses by portfolio segment for the three and nine months ended September 30, 2022 (in thousands) . Three Months Ended September 30, 2022 Beginning Provision Charge-offs Recoveries Ending Commercial and industrial $ 57,594 $ ( 1,511 ) $ ( 4,008 ) $ — $ 52,075 Residential real estate 22,615 ( 5,150 ) — — 17,465 Fund banking 9,758 2,414 — — 12,172 Commercial real estate 6,483 5,480 — — 11,963 Construction and land 5,854 1,675 — — 7,529 Securities-based loans 3,976 ( 658 ) — — 3,318 Home equity lines of credit 922 ( 724 ) — — 198 Other 280 24 — — 304 $ 107,482 $ 1,550 $ ( 4,008 ) $ — $ 105,024 Nine Months Ended September 30, 2022 Beginning Provision Charge-offs Recoveries Ending Commercial and industrial $ 44,661 $ 11,420 $ ( 4,008 ) $ 2 $ 52,075 Residential real estate 28,560 ( 11,095 ) — — 17,465 Fund banking 8,868 3,304 — — 12,172 Commercial real estate 3,934 8,029 — — 11,963 Construction and land 8,536 ( 1,007 ) — — 7,529 Securities-based loans 4,006 ( 652 ) ( 36 ) — 3,318 Home equity lines of credit 511 ( 313 ) — — 198 Other 268 36 — — 304 $ 99,344 $ 9,722 $ ( 4,044 ) $ 2 $ 105,024
Aging of Recorded Investment in Past Due Loans	The following tables present the aging of the recorded investment in past due loans at September 30, 2023 and December 31, 2022 by portfolio segment (in thousands) : As of September 30, 2023 30 – 89 Days 90 or More Total Past Current Total Residential real estate $ 5,072 $ 1,540 $ 6,612 $ 7,950,415 $ 7,957,027 Commercial and industrial — 9,233 9,233 4,358,438 4,367,671 Fund banking — — — 4,114,889 4,114,889 Securities-based loans — — — 2,317,631 2,317,631 Construction and land — — — 851,709 851,709 Commercial real estate — — — 670,907 670,907 Home equity lines of credit 51 22 73 123,922 123,995 Other 53 31 84 48,476 48,560 Total $ 5,176 $ 10,826 $ 16,002 $ 20,436,387 $ 20,452,389 As of September 30, 2023* Nonaccrual Restructured Nonperforming loans with no allowance Total Commercial real estate $ 39,747 $ — $ — $ 39,747 Commercial and industrial 9,233 — — 9,233 Residential real estate 616 146 924 1,686 Home equity lines of credit 22 — — 22 Other 29 — 2 31 Total $ 49,647 $ 146 $ 926 $ 50,719 * There were no loans past due 90 days and still accruing interest at September 30, 2023. As of December 31, 2022 30 – 89 Days 90 or More Total Current Total Residential real estate $ 2,445 $ 688 $ 3,133 $ 7,368,538 $ 7,371,671 Commercial and industrial — 9,226 9,226 4,887,950 4,897,176 Fund banking — — — 4,182,641 4,182,641 Securities-based loans — — — 2,724,551 2,724,551 Commercial real estate — — — 675,599 675,599 Construction and land — — — 593,191 593,191 Home equity lines of credit 29 182 211 106,925 107,136 Other 36 6 42 50,551 50,593 Total $ 2,510 $ 10,102 $ 12,612 $ 20,589,946 $ 20,602,558 As of December 31, 2022* Nonaccrual Restructured Nonperforming loans with no allowance Total Commercial and industrial $ 9,226 $ — $ — $ 9,226 Residential real estate 870 150 — 1,020 Other 6 — — 6 Total $ 10,102 $ 150 $ — $ 10,252 * There were no loans past due 90 days and still accruing interest at December 31, 2022.
Risk Category of Loan Portfolio	Based on the most recent analysis performed, the risk category of our loan portfolio was as follows (in thousands) : As of September 30, 2023 Pass Special Mention Substandard Doubtful Total Residential real estate $ 7,955,487 $ — $ — $ 1,540 $ 7,957,027 Commercial and industrial 4,122,791 75,483 160,164 9,233 4,367,671 Fund banking 4,114,889 — — — 4,114,889 Securities-based loans 2,317,629 — — 2 2,317,631 Construction and land 827,228 24,481 — — 851,709 Commercial real estate 553,124 77,979 39,804 — 670,907 Home equity lines of credit 123,973 — — 22 123,995 Other 48,531 — 14 15 48,560 Total $ 20,063,652 $ 177,943 $ 199,982 $ 10,812 $ 20,452,389 As of December 31, 2022 Pass Special Mention Substandard Doubtful Total Residential real estate $ 7,370,717 $ 266 $ — $ 688 $ 7,371,671 Commercial and industrial 4,743,290 87,761 56,899 9,226 4,897,176 Fund banking 4,182,641 — — — 4,182,641 Securities-based loans 2,724,548 — — 3 2,724,551 Commercial real estate 655,599 20,000 — — 675,599 Construction and land 593,191 — — — 593,191 Home equity lines of credit 106,954 — — 182 107,136 Other 50,587 — — 6 50,593 Total $ 20,427,527 $ 108,027 $ 56,899 $ 10,105 $ 20,602,558
Schedule of Term Loans Amortized Cost Basis by Origination Year and Revolving Cost Amortized Cost Basis	Term Loans Amortized Cost Basis by Origination Year – September 30, 2023 2023 2022 2021 2020 2019 Prior Revolving Loans Amortized Cost Basis Total Residential real estate: Pass $ 1,009,765 $ 2,677,509 $ 2,349,447 $ 934,506 $ 418,909 $ 565,351 $ — $ 7,955,487 Special Mention — — — — — — — — Substandard — — — — — — — — Doubtful — 924 — — — 616 — 1,540 $ 1,009,765 $ 2,678,433 $ 2,349,447 $ 934,506 $ 418,909 $ 565,967 $ — $ 7,957,027 Commercial and industrial: Pass $ 560,666 $ 1,167,661 $ 1,060,510 $ 220,224 $ 215,160 $ 199,041 $ 699,529 $ 4,122,791 Special Mention — 9,839 35,909 17,419 — — 12,316 75,483 Substandard — 26,967 74,411 — 3,913 — 54,873 160,164 Doubtful — — — 433 — 8,800 — 9,233 $ 560,666 $ 1,204,467 $ 1,170,830 $ 238,076 $ 219,073 $ 207,841 $ 766,718 $ 4,367,671 Fund banking: Pass $ — $ 55,267 $ — $ 578 $ — $ — $ 4,059,044 $ 4,114,889 Special Mention — — — — — — — — Substandard — — — — — — — — Doubtful — — — — — — — — $ — $ 55,267 $ — $ 578 $ — $ — $ 4,059,044 $ 4,114,889 Securities-based loans: Pass $ 13,954 $ 28,362 $ 2,503 $ 48,070 $ 27,278 $ 9,293 $ 2,188,169 $ 2,317,629 Special Mention — — — — — — — — Substandard — — — — — — — — Doubtful — — — — — — 2 2 $ 13,954 $ 28,362 $ 2,503 $ 48,070 $ 27,278 $ 9,293 $ 2,188,171 $ 2,317,631 Construction and land: Pass $ 26,811 $ 376,902 $ 191,175 $ 171,049 $ 61,291 $ — $ — $ 827,228 Special Mention — — — — 24,481 — — 24,481 Substandard — — — — — — — — Doubtful — — — — — — — — $ 26,811 $ 376,902 $ 191,175 $ 171,049 $ 85,772 $ — $ — $ 851,709 Commercial real estate: Pass $ 30,849 $ 356,640 $ 64,064 $ 31,201 $ 2,785 $ 67,585 $ — $ 553,124 Special Mention — 60,000 — — 17,979 — — 77,979 Substandard — — 39,804 — — — — 39,804 Doubtful — — — — — — — — $ 30,849 $ 416,640 $ 103,868 $ 31,201 $ 20,764 $ 67,585 $ — $ 670,907 Home equity lines of credit: Pass $ — $ — $ — $ — $ — $ — $ 123,973 $ 123,973 Special Mention — — — — — — — — Substandard — — — — — — — — Doubtful — — — — — — 22 22 $ — $ — $ — $ — $ — $ — $ 123,995 $ 123,995 Other: Pass $ 4,000 $ 3,991 $ — $ 10,000 $ — $ 22,555 $ 7,985 $ 48,531 Special Mention — — — — — — — — Substandard — — — — — — 14 14 Doubtful — — — — — — 15 15 $ 4,000 $ 3,991 $ — $ 10,000 $ — $ 22,555 $ 8,014 $ 48,560

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	9 Months Ended
Goodwill and Intangible Assets (Tables)	Sep. 30, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Carrying Amount of Goodwill and Intangible Assets	The carrying amount of goodwill and intangible assets attributable to each of our reporting segments is presented in the following table (in thousands) : December 31, 2022 Adjustments Write-off September 30, 2023 Goodwill Global Wealth Management $ 335,009 $ — $ — $ 335,009 Institutional Group 991,539 72,581 — 1,064,120 $ 1,326,548 $ 72,581 $ — $ 1,399,129 December 31, 2022 Adjustments Amortization September 30, 2023 Intangible assets Global Wealth Management $ 33,499 $ — $ ( 3,652 ) $ 29,847 Institutional Group 97,090 10,726 ( 10,220 ) 97,596 $ 130,589 $ 10,726 $ ( 13,872 ) $ 127,443 The adjustments to goodwill and intangible assets during the nine months ended September 30, 2023 are primarily attributable to the acquisitions of Torreya Partners, LLC (“Torreya”) and Sierra Pacific Securities, LLC (“Sierra Pacific”).
Intangible Assets	Intangible assets as of September 30, 2023 and December 31, 2022 were as follows (in thousands) : September 30, 2023 December 31, 2022 Gross Accumulated Amortization Gross Accumulated Amortization Customer relationships $ 226,984 $ 119,306 $ 225,631 $ 109,216 Trade names 30,359 21,995 30,359 20,861 Non-compete agreements 10,071 8,060 9,440 7,158 Core deposits 8,615 7,990 8,615 7,389 Investment banking backlog 8,913 5,368 5,545 4,377 Estimated Sierra Pacific intangibles (1) 5,400 180 — — $ 290,342 $ 162,899 $ 279,590 $ 149,001 (1) See discussion regarding the allocation of the estimated goodwill and intangibles recorded for the Sierra Pacific acquisition.
Amortization Expense in Future Periods	As of September 30, 2023, we expect amortization expense in future periods to be as follows (in thousands) : Fiscal year Remainder of 2023 $ 4,732 2024 18,243 2025 16,032 2026 14,442 2027 14,142 Thereafter 57,734 $ 125,325

Senior Notes (Tables)

Senior Notes (Tables)	9 Months Ended
Senior Notes (Tables)	Sep. 30, 2023
Debt Disclosure [Abstract]
Summary of Senior Notes	The following table summarizes our senior notes as of September 30, 2023 and December 31, 2022 (in thousands) : September 30, 2023 December 31, 4.25 % senior notes, due 2024 (1) $ 500,000 $ 500,000 4.00 % senior notes, due 2030 (2) 400,000 400,000 5.20 % senior notes, due 2047 (3) 225,000 225,000 1,125,000 1,125,000 Debt issuance costs, net ( 9,640 ) ( 10,446 ) Senior notes, net $ 1,115,360 $ 1,114,554 (1) In July 2014, we sold in a registered underwritten public offering, $ 300.0 million in aggregate principal amount of 4.25 % senior notes due July 2024 . Interest on these senior notes is payable semi-annually in arrears. We may redeem the notes in whole or in part, at our option, at a redemption price equal to 100 % of their principal amount, plus a “make-whole” premium and accrued and unpaid interest, if any, to the date of redemption. In July 2016, we issued an additional $ 200.0 million in aggregate principal amount of 4.25% senior notes due 2024. (2) In May 2020, we sold in a registered underwritten public offering, $ 400.0 million in aggregate principal amount of 4.00 % senior notes due May 2030 . Interest on these senior notes is payable semi-annually in arrears. We may redeem the notes in whole or in part, at our option, at a redemption price equal to the greater of a) 100 % of their principal amount, or b) discounted present value at Treasury rate plus 50 basis points prior to February 15, 2030, and on or after February 15, 2030, at 100 % of their principal amount, and accrued and unpaid interest, if any, to the date of redemption. (3) In October 2017, we completed the pricing of a registered underwritten public offering of $ 200.0 million in aggregate principal amount of 5.20 % senior notes due October 2047 . Interest on the senior notes is payable quarterly in arrears. On or after October 15, 2022, we may redeem some or all of the senior notes at any time at a redemption price equal to 100 % of the principal amount of the notes being redeemed plus accrued interest thereon to the redemption date. On October 27, 2017, we completed the sale of an additional $ 25.0 million aggregate principal amount of Notes pursuant to the over-allotment option.
Schedule of Corporate Date Maturity	Our senior notes mature as follows, based upon contractual terms (in thousands) : 2023 $ — 2024 500,000 2025 — 2026 — 2027 — Thereafter 625,000 $ 1,125,000

Bank Deposits (Tables)

Bank Deposits (Tables)	9 Months Ended
Bank Deposits (Tables)	Sep. 30, 2023
Deposits Liabilities, Balance Sheet, Reported Amounts [Abstract]
Schedule of Deposits	Deposits consist of interest-bearing demand deposits (primarily money market and savings accounts), non-interest bearing demand deposits, and certificates of deposit. Deposits at September 30, 2023 and December 31, 2022 were as follows (in thousands) : September 30, 2023 December 31, Demand deposits (interest-bearing) $ 27,335,890 $ 26,805,073 Demand deposits (non-interest-bearing) 258,466 305,138 Certificates of deposit 2 6,900 $ 27,594,358 $ 27,117,111

Derivative Instruments and He_2

Derivative Instruments and Hedging Activities (Tables)	9 Months Ended
Derivative Instruments and Hedging Activities (Tables)	Sep. 30, 2023
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Fair Values of Derivative Instruments	The following tables provide the notional values and fair values of our derivative instruments as of September 30, 2023 and December 31, 2022 (in thousands) : September 30, 2023 Derivative Assets Derivative Liabilities Notional value Interest rate contracts $ 166,038 $ 166,015 $ 1,876,064 December 31, 2022 Derivative Assets Derivative Liabilities Notional value Interest rate contracts $ 142,042 $ 142,028 $ 1,395,135
Schedule of Maturities of Derivative Instruments	The scheduled maturities of our derivative instruments as of September 30, 2023, are as follows (in thousands) : Within one year $ 41,369 One to three years 581,049 Three to five years 381,601 Five to ten years 758,302 Ten to fifteen years 94,603 Fifteen years and thereafter 19,140 $ 1,876,064
Schedule of Distribution of Customer Interest Rate Derivative	The following table presents the distribution of customer interest rate derivative transactions, by derivative product, as of September 30, 2023 and December 31, 2022 (in thousands) : September 30, 2023 December 31, 2022 Swaps $ 1,706,064 $ 1,375,135 Written options 170,000 20,000 $ 1,876,064 $ 1,395,135

Disclosures About Offsetting _2

Disclosures About Offsetting Assets and Liabilities (Tables)	9 Months Ended
	Sep. 30, 2023
Offsetting [Abstract]
Financial Assets and Derivative Assets that are Subject to Offset	The following table provides information about financial assets and derivative assets that are subject to offset as of September 30, 2023 and December 31, 2022 (in thousands) : As of September 30, 2023 Securities borrowing (1) Reverse repurchase agreements (2) Interest rate contracts (3) Total Gross amounts of recognized assets $ 180,156 $ 412,367 $ 166,038 $ 758,561 Gross amounts offset in the statement of financial condition — — — — Net amounts presented in the statement of financial condition 180,156 412,367 166,038 758,561 Gross amounts not offset in the statement of financial condition: Amounts available for offset ( 23,613 ) ( 19,706 ) ( 1,486 ) ( 44,805 ) Available collateral ( 147,773 ) ( 390,288 ) ( 98,514 ) ( 636,575 ) Net amount $ 8,770 $ 2,373 $ 66,038 $ 77,181 As of December 31, 2022 Securities borrowing (1) Reverse repurchase agreements (2) Interest rate contracts (3) Total Gross amounts of recognized assets $ 219,052 $ 348,162 $ 142,042 $ 709,256 Gross amounts offset in the statement of financial condition — — — — Net amounts presented in the statement of financial condition 219,052 348,162 142,042 709,256 Gross amounts not offset in the statement of financial condition: Amounts available for offset ( 46,647 ) ( 12,028 ) ( 1,959 ) ( 60,634 ) Available collateral ( 160,139 ) ( 334,537 ) ( 55,568 ) ( 550,244 ) Net amount $ 12,266 $ 1,597 $ 84,515 $ 98,378 (1) Securities borrowing transactions are included in receivables from brokers, dealers, and clearing organizations on the consolidated statements of financial condition. See Note 3 in the notes to consolidated financial statements for additional information on receivables from brokers, dealers, and clearing organizations. (2) Available collateral includes securities received from the counterparty. These securities are not included on the consolidated statements of financial condition unless there is an event of default. The fair value of securities received as collateral was $ 410.1 million and $ 346.5 million at September 30, 2023 and December 31, 2022, respectively. (3) Available collateral includes securities received from the counterparty. These securities are not included on the consolidated statements of financial condition unless there is an event of default. The fair value of securities received as collateral was $ 74.4 million and $ 50.0 million at September 30, 2023 and December 31, 2022, respectively.
Financial Liabilities and Derivative Liabilities that are Subject to Offset	The following table provides information about financial liabilities and derivative liabilities that are subject to offset as of September 30, 2023 and December 31, 2022 (in thousands) : As of September 30, 2023 Securities lending (4) Repurchase agreements (5) Interest rate contracts (6) Total Gross amounts of recognized liabilities $ ( 104,570 ) $ ( 408,950 ) $ ( 166,015 ) $ ( 679,535 ) Gross amounts offset in the statement of financial condition — — — — Net amounts presented in the statement of financial condition ( 104,570 ) ( 408,950 ) ( 166,015 ) ( 679,535 ) Gross amounts not offset in the statement of financial condition: Amounts available for offset 23,613 19,706 1,486 44,805 Collateral pledged 80,956 389,244 52,653 522,853 Net amount $ ( 1 ) $ — $ ( 111,876 ) $ ( 111,877 ) As of December 31, 2022 Securities lending (4) Repurchase agreements (5) Interest rate contracts (6) Total Gross amounts of recognized liabilities $ ( 68,105 ) $ ( 212,011 ) $ ( 142,028 ) $ ( 422,144 ) Gross amounts offset in the statement of financial condition — — — — Net amounts presented in the statement of financial condition ( 68,105 ) ( 212,011 ) ( 142,028 ) ( 422,144 ) Gross amounts not offset in the statement of financial condition: Amounts available for offset 46,647 12,028 1,959 60,634 Collateral pledged 21,448 199,983 25,850 247,281 Net amount $ ( 10 ) $ — $ ( 114,219 ) $ ( 114,229 ) Securities lending transactions are included in payables to brokers, dealers, and clearing organizations on the consolidated statements of financial condition. See Note 3 in the notes to consolidated financial statements for additional information on payables to brokers, dealers, and clearing organizations. (5) Collateral pledged includes the fair value of securities pledged to the counterparty. These securities are included on the consolidated statements of financial condition unless we default. Collateral pledged by our company to the counterparty includes U.S. government agency securities, U.S. government securities, and corporate fixed income securities with market values of $ 418.7 million and $ 218.3 million at September 30, 2023 and December 31, 2022, respectively. (6) Collateral pledged includes the fair value of securities pledged to the counterparty. The fair value of securities pledged as collateral was $ 25.2 million and $ 24.1 million at September 30, 2023 and December 31, 2022, respectively.

Regulatory Capital Requiremen_2

Regulatory Capital Requirements (Tables)	9 Months Ended
Regulatory Capital Requirements (Tables)	Sep. 30, 2023
Broker-Dealer, Net Capital Requirement, SEC Regulation [Abstract]
Schedule Of Total Risk-Based, Tier 1 Risk-Based, And Tier 1 Leverage Ratios	The amounts and ratios for Stifel Financial Corp., Stifel Bank & Trust, and Stifel Bank as of September 30, 2023 are represented in the tables below (in thousands, except ratios). Actual For Capital To Be Well Capitalized Stifel Financial Corp. Amount Ratio Amount Ratio Amount Ratio Common equity tier 1 capital $ 3,228,952 13.9 % $ 1,044,849 4.5 % $ 1,509,226 6.5 % Tier 1 capital 3,913,952 16.9 % 1,393,131 6.0 % 1,857,509 8.0 % Total capital 4,136,017 17.8 % 1,857,509 8.0 % 2,321,886 10.0 % Tier 1 leverage 3,913,952 10.8 % 1,454,233 4.0 % 1,817,791 5.0 % Actual For Capital To Be Well Capitalized Stifel Bank & Trust Amount Ratio Amount Ratio Amount Ratio Common equity tier 1 capital $ 1,489,819 10.8 % $ 620,224 4.5 % $ 895,878 6.5 % Tier 1 capital 1,489,819 10.8 % 826,965 6.0 % 1,102,620 8.0 % Total capital 1,625,012 11.8 % 1,102,620 8.0 % 1,378,275 10.0 % Tier 1 leverage 1,489,819 7.7 % 774,198 4.0 % 967,748 5.0 % Actual For Capital To Be Well Capitalized Stifel Bank Amount Ratio Amount Ratio Amount Ratio Common equity tier 1 capital $ 690,456 14.6 % $ 212,588 4.5 % $ 307,071 6.5 % Tier 1 capital 690,456 14.6 % 283,451 6.0 % 377,934 8.0 % Total capital 722,840 15.3 % 377,934 8.0 % 472,418 10.0 % Tier 1 leverage 690,456 7.1 % 390,341 4.0 % 487,926 5.0 %

Operating Leases (Tables)

Operating Leases (Tables)	9 Months Ended
Operating Leases (Tables)	Sep. 30, 2023
Lessee Disclosure [Abstract]
Schedule of Net Lease Cost	The table below summarizes our net lease cost for the three and nine months ended September 30, 2023 and 2022 (in thousands) : Three Months Ended September 30, 2023 2022 Operating lease cost $ 27,183 $ 26,685 Short-term lease cost 710 401 Variable lease cost 7,299 6,028 Sublease income ( 274 ) ( 591 ) Net lease cost $ 34,918 $ 32,523 Nine Months Ended September 30, 2023 2022 Operating lease cost $ 79,961 $ 80,137 Short-term lease cost 1,425 998 Variable lease cost 21,244 17,051 Sublease income ( 836 ) ( 1,786 ) Net lease cost $ 101,794 $ 96,400 Operating lease costs are included in occupancy and equipment rental in the consolidated statements of operations. The table below summarizes other information related to our operating leases as of and for the nine months ended September 30, 2023 (in thousands) : Operating lease cash flows $ 82,976 Right-of-use assets obtained in exchange for new operating lease liabilities $ 83,749 Weighted-average remaining lease term (years) 12.8 years Weighted-average discount rate 4.92 %
Schedule of Information About Operating Lease Liabilities	The table below presents information about operating lease liabilities as of September 30, 2023, (in thousands, except percentages) . Remainder of 2023 $ 26,798 2024 105,237 2025 99,070 2026 99,271 2027 98,302 Thereafter 730,135 Total undiscounted lease payments 1,158,813 Imputed interest ( 327,095 ) Total operating lease liabilities $ 831,718

Revenues from Contracts with _2

Revenues from Contracts with Customers (Tables)	9 Months Ended
Revenues from Contracts with Customers (Tables)	Sep. 30, 2023
Revenue from Contract with Customer [Abstract]
Schedule of Total Revenues Broken Out by Revenues from Contracts with Customers and Other Sources of Revenues	The following table presents the Company’s total revenues broken out by revenues from contracts with customers and other sources of revenue for the three and nine months ended September 30, 2023 and 2022 (in thousands) : Three Months Ended September 30, 2023 2022 Revenues from contracts with customers: Commissions $ 165,075 $ 159,054 Investment banking 146,887 221,858 Asset management 333,127 300,557 Other 1,380 1,055 Total revenue from contracts with customers 646,469 682,524 Other sources of revenue: Interest 505,198 304,195 Principal transactions 114,841 118,379 Other ( 921 ) ( 203 ) Total revenues $ 1,265,587 $ 1,104,895 Nine Months Ended September 30, 2023 2022 Revenues from contracts with customers: Commissions $ 499,983 $ 541,644 Investment banking 525,591 747,779 Asset management 968,960 973,457 Other 3,987 4,763 Total revenue from contracts with customers 1,998,521 2,267,643 Other sources of revenue: Interest 1,439,532 682,384 Principal transactions 336,063 403,252 Other ( 4,927 ) 3,060 Total revenues $ 3,769,189 $ 3,356,339
Revenues from Contracts with Customers Disaggregated by Major Business Activity and Primary Geographic Regions	The following tables present the Company’s revenues from contracts with customers by reportable segment disaggregated by major business activity and primary geographic regions for the three and nine months ended September 30, 2023 and 2022 (in thousands) : Three Months Ended September 30, 2023 (1) Global Wealth Management Institutional Group Other Total Major Business Activity: Commissions $ 112,300 $ 52,775 $ — $ 165,075 Capital raising 3,895 45,719 — 49,614 Advisory — 97,273 — 97,273 Investment banking 3,895 142,992 — 146,887 Asset management 333,088 39 — 333,127 Other 1,319 17 44 1,380 Total 450,602 195,823 44 646,469 Primary Geographic Region: United States 450,602 145,787 44 596,433 United Kingdom — 31,240 — 31,240 Canada — 8,601 — 8,601 Other — 10,195 — 10,195 $ 450,602 $ 195,823 $ 44 $ 646,469 (1) Excludes revenues not derived from contracts with customers included in the Other segment. Three Months Ended September 30, 2022 (1) Global Wealth Management Institutional Group Other Total Major Business Activity: Commissions $ 108,214 $ 50,840 $ — $ 159,054 Capital raising 4,498 50,624 — 55,122 Advisory — 166,736 — 166,736 Investment banking 4,498 217,360 — 221,858 Asset management 300,540 17 — 300,557 Other 979 — 76 1,055 Total 414,231 268,217 76 682,524 Primary Geographic Region: United States 414,231 223,713 76 638,020 United Kingdom — 29,987 — 29,987 Canada — 7,920 — 7,920 Other — 6,597 — 6,597 $ 414,231 $ 268,217 $ 76 $ 682,524 Nine Months Ended September 30, 2023 (1) Global Wealth Management Institutional Group Other Total Major business activity: Commissions $ 332,327 $ 167,656 $ — $ 499,983 Capital raising 12,118 177,263 — 189,381 Advisory — 336,210 — 336,210 Investment banking 12,118 513,473 — 525,591 Asset management 968,863 97 — 968,960 Other 3,821 17 149 3,987 Total 1,317,129 681,243 149 1,998,521 Primary Geographic Region: United States 1,317,129 499,047 149 1,816,325 United Kingdom — 99,844 — 99,844 Canada — 38,738 — 38,738 Other — 43,614 — 43,614 $ 1,317,129 $ 681,243 $ 149 $ 1,998,521 Nine Months Ended September 30, 2022 (1) Global Wealth Management Institutional Group Other Total Major business activity: Commissions $ 360,994 $ 180,650 $ — $ 541,644 Capital raising 14,701 185,390 — 200,091 Advisory — 547,688 — 547,688 Investment banking 14,701 733,078 — 747,779 Asset management 973,396 61 — 973,457 Other 4,573 — 190 4,763 Total 1,353,664 913,789 190 2,267,643 Primary Geographic Region: United States 1,353,664 763,774 190 2,117,628 United Kingdom — 101,342 — 101,342 Canada — 25,043 — 25,043 Other — 23,630 — 23,630 $ 1,353,664 $ 913,789 $ 190 $ 2,267,643 (1) Excludes revenues not derived from contracts with customers included in the Other segment.

Interest Income and Interest _2

Interest Income and Interest Expense (Tables)	9 Months Ended
Interest Income and Interest Expense (Tables)	Sep. 30, 2023
Banking and Thrift, Interest [Abstract]
Components of Interest Income and Interest Expense	The components of interest income and interest expense are as follows (in thousands) : Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 Interest income: Loans held for investment, net $ 320,715 $ 208,365 $ 928,801 $ 480,053 Investment securities 120,670 71,420 345,201 151,728 Interest-bearing cash and federal funds sold 35,560 7,745 83,280 11,721 Margin balances 15,651 12,510 45,874 28,154 Other 12,602 4,155 36,376 10,728 $ 505,198 $ 304,195 $ 1,439,532 $ 682,384 Interest expense: Bank deposits $ 198,197 $ 43,371 $ 506,847 $ 47,899 Senior notes 12,507 11,220 37,519 33,919 Other 9,832 5,165 22,258 4,729 $ 220,536 $ 59,756 $ 566,624 $ 86,547

Segment Reporting (Tables)

Segment Reporting (Tables)	9 Months Ended
Segment Reporting (Tables)	Sep. 30, 2023
Segment Reporting [Abstract]
Schedule Of Operating Information, Segment	Information concerning operations in these segments of business for the three and nine months ended September 30, 2023 and 2022 is as follows (in thousands) : Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 Net revenues: (1) Global Wealth Management $ 768,558 $ 701,820 $ 2,283,934 $ 2,081,525 Institutional Group 256,888 339,408 867,025 1,182,135 Other 19,605 3,911 51,606 6,132 $ 1,045,051 $ 1,045,139 $ 3,202,565 $ 3,269,792 Income/(loss) before income taxes: Global Wealth Management $ 298,449 $ 279,935 $ 914,462 $ 750,500 Institutional Group ( 27,804 ) 40,000 ( 5,671 ) 209,620 Other ( 161,216 ) ( 114,166 ) ( 408,094 ) ( 308,701 ) $ 109,429 $ 205,769 $ 500,697 $ 651,419 (1) No individual client accounted for more than 10 percent of total net revenues for the three and nine months ended September 30, 2023 and 2022.
Schedule Of Information Of Total Assets On Segment Basis	The following table presents our company’s total assets on a segment basis at September 30, 2023 and December 31, 2022 (in thousands) : September 30, 2023 December 31, Global Wealth Management $ 32,601,555 $ 32,449,466 Institutional Group 4,779,831 4,285,212 Other 496,191 461,446 $ 37,877,577 $ 37,196,124
Schedule Of Net Revenues Earned On Major Geographical Areas	Revenues, classified by the major geographic areas in which they were earned for the three and nine months ended September 30, 2023 and 2022, were as follows (in thousands) : Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 United States $ 979,282 $ 987,770 $ 2,982,274 $ 3,085,241 United Kingdom 45,095 40,980 131,855 134,836 Canada 8,364 7,798 37,195 21,182 Other 12,310 8,591 51,241 28,533 $ 1,045,051 $ 1,045,139 $ 3,202,565 $ 3,269,792

Earnings Per Share ("EPS") (Tab

Earnings Per Share ("EPS") (Tables)	9 Months Ended
Earnings Per Share ("EPS") (Tables)	Sep. 30, 2023
Earnings Per Share [Abstract]
Computation of Basic and Diluted Earnings Per Share	The following table sets forth the computation of basic and diluted earnings per share for the three and nine months ended September 30, 2023 and 2022 (in thousands, except per share data) : Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 Net income $ 68,161 $ 151,169 $ 360,052 $ 485,534 Preferred dividends 9,321 9,320 27,961 27,961 Net income available to common shareholders $ 58,840 $ 141,849 $ 332,091 $ 457,573 Shares for basic and diluted calculation: Average shares used in basic computation 106,068 108,767 107,580 109,017 Dilutive effect of stock options and units (1) 7,127 8,451 6,590 8,632 Average shares used in diluted computation 113,195 117,218 114,170 117,649 Earnings per common share: Basic $ 0.55 $ 1.30 $ 3.09 $ 4.20 Diluted $ 0.52 $ 1.21 $ 2.91 $ 3.89 (1) Diluted earnings per share is computed on the basis of the weighted-average number of shares of common stock plus the effect of dilutive potential common shares outstanding during the period using the treasury stock method. Diluted earnings per share include units.

Variable Interest Entities (Tab

Variable Interest Entities (Tables)	9 Months Ended
Variable Interest Entities (Tables)	Sep. 30, 2023
Variable Interest Entity, Not Primary Beneficiary, Disclosures [Abstract]
Aggregate Assets, Liabilities, and Our Exposure to Loss from those VIEs	The following tables present the aggregate assets, liabilities, and our exposure to loss from those VIEs in which we hold a variable interest, but as to which we have concluded we are not the primary beneficiary (in thousands) : September 30, 2023 Aggregate Assets Aggregate Liabilities Our Risk of Loss Debt and Equity Investments $ 401,245 $ 274,342 $ 27,627 Partnership Interests 336,271 768 — $ 737,516 $ 275,110 $ 27,627 December 31, 2022 Aggregate Assets Aggregate Liabilities Our Risk of Loss Debt and Equity Investments $ 388,408 $ 296,375 $ 14,776 Partnership Interests 402,703 1,180 — $ 791,111 $ 297,555 $ 14,776

Nature of Operations, Basis o_3

Nature of Operations, Basis of Presentation, and Summary of Significant Accounting Policies (Narrative) (Details)	Nov. 11, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Stock split, conversion ratio	1.5

Receivables From and Payables_3

Receivables From and Payables to Brokers, Dealers and Clearing Organizations (Amounts Receivable from Brokers, Dealers, and Clearing Organizations) (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Due to and from Broker-Dealers and Clearing Organizations [Abstract]
Deposits paid for securities borrowed	$ 180,156	$ 219,052
Receivables from clearing organizations	171,303	186,800
Securities failed to deliver	11,549	12,239
Receivables from brokers, dealers and clearing organizations, Total	$ 363,008	$ 418,091

Receivables From and Payables_4

Receivables From and Payables to Brokers, Dealers and Clearing Organizations (Amounts Payable to Brokers, Dealers, and Clearing Organizations) (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Due to and from Broker-Dealers and Clearing Organizations [Abstract]
Deposits received from securities loaned	$ 104,570	$ 68,105
Securities failed to receive	80,231	12,385
Payable to clearing organizations	33,115	14,464
Payables to broker, dealers and clearing organizations, Total	$ 217,916	$ 94,954

Fair Value Of Financial Instrum

Fair Value Of Financial Instruments (Schedule Of Fair Value Of Investments In And Unfunded Commitments To Funds Measured At Net Asset Value) (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Fair Value Investments Entities That Calculate Net Asset Value Per Share [Line Items]
Fair value of investments	$ 27,968	$ 25,612
Unfunded commitments	8,237	11,034
Partnership Interests [Member]
Fair Value Investments Entities That Calculate Net Asset Value Per Share [Line Items]
Fair value of investments	22,413	18,817
Unfunded commitments	7,056	9,853
Mutual Funds [Member]
Fair Value Investments Entities That Calculate Net Asset Value Per Share [Line Items]
Fair value of investments	3,278	4,728
Money Market Funds [Member]
Fair Value Investments Entities That Calculate Net Asset Value Per Share [Line Items]
Fair value of investments	1,870	1,650
Private Equity Funds [Member]
Fair Value Investments Entities That Calculate Net Asset Value Per Share [Line Items]
Fair value of investments	407	417
Unfunded commitments	$ 1,181	$ 1,181

Fair Value Of Financial Instr_2

Fair Value Of Financial Instruments (Fair Value Of Assets And Liabilities Measured On Recurring Basis) (Details) - USD ($) $ in Thousands		Sep. 30, 2023		Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial instruments owned		$ 1,056,745		$ 731,752
Available-for-sale securities, at fair value		1,512,233	[1]	1,636,041
Investments		91,154		99,376
Cash equivalents measured at NAV		1,870		1,650
Derivative contracts, Assets	[2]	166,038		142,042
Total Assets		2,828,040		2,610,861
Financial instruments sold, but not yet purchased, at fair value		578,290		454,817
Derivative contracts, Liabilities	[3]	166,015		142,028
Total, Liabilities		744,305		596,845
U.S. Government Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial instruments owned		10,479		38,956
Financial instruments sold, but not yet purchased, at fair value		334,630		254,265
U.S. Government Agency Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial instruments owned		158,086		73,608
Available-for-sale securities, at fair value		2,135	[1]	2,148
Financial instruments sold, but not yet purchased, at fair value		5,439		3,971
Asset-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial instruments owned		63,046		8,270
Available-for-sale securities, at fair value		188,677		207,725
Corporate Fixed Income Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial instruments owned		321,842		202,169
Available-for-sale securities, at fair value		537,850	[1]	566,294
Financial instruments sold, but not yet purchased, at fair value		135,080		134,381
Corporate Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial instruments owned		43,091		38,129
Investments		24,877		23,597
Financial instruments sold, but not yet purchased, at fair value		20,114		11,590
State and Municipal Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial instruments owned		163,139		126,237
Available-for-sale securities, at fair value		2,294	[1]	2,351
Other Investment [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments	[4]	39,396		37,136
Investments in Funds and Partnerships Measured at NAV [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments		26,098		23,962
Agency Mortgage-Backed Securities [Member] \| Agency Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial instruments owned		199,294		172,642
Available-for-sale securities, at fair value		715,250	[1]	791,022
Financial instruments sold, but not yet purchased, at fair value		70,344		44,793
Agency Mortgage-Backed Securities [Member] \| Commercial [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value		65,695	[1]	66,113
Agency Mortgage-Backed Securities [Member] \| Non-Agency [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value		332	[1]	388
Auction Rate Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments		783		14,681
Sovereign Debt [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial instruments owned		1,056,745		731,752
Financial instruments sold, but not yet purchased, at fair value		12,683	[5]	5,817	[6]
Other [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial instruments owned		97,768	[7]	71,741	[8]
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments		10,959		10,045
Total Assets		64,452		87,073
Financial instruments sold, but not yet purchased, at fair value		354,744		265,943
Total, Liabilities		354,744		265,943
Level 1 [Member] \| U.S. Government Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial instruments owned		10,479		38,956
Financial instruments sold, but not yet purchased, at fair value		334,630		254,265
Level 1 [Member] \| Corporate Fixed Income Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial instruments owned		197		689
Financial instruments sold, but not yet purchased, at fair value				88
Level 1 [Member] \| Corporate Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial instruments owned		42,817		37,383
Investments		10,888		9,928
Financial instruments sold, but not yet purchased, at fair value		20,114		11,590
Level 1 [Member] \| Other Investment [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments	[4]	71		117
Level 1 [Member] \| Sovereign Debt [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial instruments owned		53,493		77,028
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value		1,512,233		1,636,041
Investments		2,226		1,836
Derivative contracts, Assets	[2]	166,038		142,042
Total Assets		2,593,563		2,362,576
Financial instruments sold, but not yet purchased, at fair value		217,837		183,093
Derivative contracts, Liabilities	[3]	166,015		142,028
Total, Liabilities		383,852		325,121
Level 2 [Member] \| U.S. Government Agency Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial instruments owned		158,086		73,608
Available-for-sale securities, at fair value		2,135		2,148
Financial instruments sold, but not yet purchased, at fair value		5,439		3,971
Level 2 [Member] \| Asset-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial instruments owned		61,377		6,091
Available-for-sale securities, at fair value		188,677		207,725
Level 2 [Member] \| Corporate Fixed Income Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial instruments owned		321,645		201,480
Available-for-sale securities, at fair value		537,850		566,294
Financial instruments sold, but not yet purchased, at fair value		135,080		134,293
Level 2 [Member] \| Corporate Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial instruments owned		274		746
Investments		2,111		1,791
Level 2 [Member] \| State and Municipal Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial instruments owned		163,139		126,237
Available-for-sale securities, at fair value		2,294		2,351
Level 2 [Member] \| Other Investment [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments	[4]	115		45
Level 2 [Member] \| Agency Mortgage-Backed Securities [Member] \| Agency Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial instruments owned		199,294		172,642
Available-for-sale securities, at fair value		715,250		791,022
Financial instruments sold, but not yet purchased, at fair value		70,344		44,793
Level 2 [Member] \| Agency Mortgage-Backed Securities [Member] \| Commercial [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value		65,695		66,113
Level 2 [Member] \| Agency Mortgage-Backed Securities [Member] \| Non-Agency [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, at fair value		332		388
Level 2 [Member] \| Sovereign Debt [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial instruments owned		913,066		582,657
Financial instruments sold, but not yet purchased, at fair value		6,974	[5]	36	[6]
Level 2 [Member] \| Other [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial instruments owned		9,251	[7]	1,853	[8]
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments		51,871		63,533
Total Assets		142,057		135,600
Financial instruments sold, but not yet purchased, at fair value		5,709		5,781
Total, Liabilities		5,709		5,781
Level 3 [Member] \| Asset-Backed Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial instruments owned		1,669		2,179
Level 3 [Member] \| Corporate Equity Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments		11,878		11,878
Level 3 [Member] \| Other Investment [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments	[4]	39,210		36,974
Level 3 [Member] \| Auction Rate Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments		783		14,681
Level 3 [Member] \| Sovereign Debt [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial instruments owned		90,186		72,067
Level 3 [Member] \| Other [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial instruments owned		88,517	[7]	69,888	[8]
Financial instruments sold, but not yet purchased, at fair value		$ 5,709	[5]	$ 5,781	[6]

[1] Due to the immaterial amount of income recognized on tax-exempt securities, yields were not calculated on a tax-equivalent basis. Included in other assets in the consolidated statements of financial condition. Included in accounts payable and accrued expenses in the consolidated statements of financial condition. Primarily includes private company investments. Includes asset-backed securities and syndicated loans. Includes syndicated loans and state and municipal securities. Includes syndicated loans and non-agency mortgage-backed securities. Includes syndicated loans, non-agency mortgage-backed securities, and sovereign debt.

Fair Value Of Financial Instr_3

Fair Value Of Financial Instruments (Schedule Of Changes In Fair Value Associated With Level 3 Financial Instruments) (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2023
Asset-Backed Securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	$ 1,979	$ 2,179
Realized gains/(losses)	502	728
Redemptions	(812)	(1,238)
Net change	(310)	(510)
Ending Balance	1,669	1,669
Syndicated Loans [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	105,541	69,888
Unrealized gains/(losses)	(158)	(72)
Realized gains/(losses)	(1,323)	(1,396)
Purchases	13,909	68,669
Sales	(26,869)	(31,438)
Redemptions	(2,583)	(17,134)
Net change	(17,024)	18,629
Ending Balance	88,517	88,517
Corporate Equity Securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	11,878	11,878
Ending Balance	11,878	11,878
Auction Rate Securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	14,683	14,681
Unrealized gains/(losses)		2
Realized gains/(losses)	(232)	(232)
Redemptions	(13,668)	(13,668)
Net change	(13,900)	(13,898)
Ending Balance	783	783
Other Investment [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	37,342	36,974
Unrealized gains/(losses)	368	736
Purchases	1,500	1,500
Net change	1,868	2,236
Ending Balance	$ 39,210	$ 39,210

Fair Value Of Financial Instr_4

Fair Value Of Financial Instruments (Schedule Of Fair Value Of Financial Instruments) (Details) - USD ($) $ in Thousands		Sep. 30, 2023		Dec. 31, 2022
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities purchased under agreements to resell		$ 412,367		$ 348,162
Financial instruments owned		1,056,745		731,752
Available-for-sale securities, Fair Value		1,512,233	[1]	1,636,041
Held-to-maturity securities	[2]	5,811,600		5,738,418
Derivative contracts, Assets	[3]	166,038		142,042
Securities sold under agreements to repurchase		408,950		212,011
Financial instruments sold, but not yet purchased, at fair value		578,290		454,817
Senior notes		1,115,360		1,114,554
Carrying Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents		2,768,353		2,199,985
Cash segregated for regulatory purposes		33,399		29,017
Securities purchased under agreements to resell		412,367		348,162
Financial instruments owned		1,056,745		731,752
Available-for-sale securities, Fair Value		1,512,233		1,636,041
Held-to-maturity securities		5,900,379		5,990,451
Bank loans		20,292,553		20,465,092
Loans held for sale		142,617		156,912
Investments		91,154		99,376
Derivative contracts, Assets	[3]	166,038		142,042
Securities sold under agreements to repurchase		408,950		212,011
Bank deposits		27,594,358		27,117,111
Financial instruments sold, but not yet purchased, at fair value		578,290		454,817
Senior notes		1,115,360		1,114,554
Debentures to Stifel Financial Capital Trusts		60,000		60,000
Derivative contracts	[4]	166,015		142,028
Estimated Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents		2,768,353		2,199,985
Cash segregated for regulatory purposes		33,399		29,017
Securities purchased under agreements to resell		412,367		348,162
Financial instruments owned		1,056,745		731,752
Available-for-sale securities, Fair Value		1,512,233		1,636,041
Held-to-maturity securities		5,811,600		5,738,418
Bank loans		19,353,782		19,752,043
Loans held for sale		142,617		156,912
Investments		91,154		99,376
Derivative contracts, Assets	[3]	166,038		142,042
Securities sold under agreements to repurchase		408,950		212,011
Bank deposits		25,358,517		24,274,224
Financial instruments sold, but not yet purchased, at fair value		578,290		454,817
Senior notes		1,020,868		1,016,755
Debentures to Stifel Financial Capital Trusts		58,262		53,385
Derivative contracts	[4]	$ 166,015		$ 142,028

[1] Due to the immaterial amount of income recognized on tax-exempt securities, yields were not calculated on a tax-equivalent basis. Held-to-maturity securities are carried in the consolidated statements of financial condition at amortized cost, and the changes in the value of these securities, other than impairment charges, are not reported on the consolidated financial statements. Included in other assets in the consolidated statements of financial condition. Included in accounts payable and accrued expenses in the consolidated statements of financial condition.

Fair Value Of Financial Instr_5

Fair Value Of Financial Instruments (Estimated Fair Values Of Financial Instruments Not Measured At Fair Value On A Recurring Basis) (Details) - USD ($) $ in Thousands		Sep. 30, 2023	Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities purchased under agreements to resell		$ 412,367	$ 348,162
Held-to-maturity securities	[1]	5,811,600	5,738,418
Securities sold under agreements to repurchase		408,950	212,011
Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash		2,766,483	2,198,335
Cash segregated for regulatory purposes		33,399	29,017
Securities purchased under agreements to resell		412,367	348,162
Held-to-maturity securities		5,811,600	5,738,418
Bank loans		19,353,782	19,752,043
Loans held for sale		142,617	156,912
Securities sold under agreements to repurchase		408,950	212,011
Bank deposits		25,358,517	24,274,224
Senior notes		1,020,868	1,016,755
Debentures to Stifel Financial Capital Trusts		58,262	53,385
Fair Value, Measurements, Nonrecurring [Member] \| Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash		2,766,483	2,198,335
Cash segregated for regulatory purposes		33,399	29,017
Securities purchased under agreements to resell		0	218,515
Held-to-maturity securities		0
Bank loans		0
Loans held for sale		0
Securities sold under agreements to repurchase		0
Bank deposits		0
Senior notes		1,020,868	1,016,755
Debentures to Stifel Financial Capital Trusts		0
Fair Value, Measurements, Nonrecurring [Member] \| Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash		0
Cash segregated for regulatory purposes		0
Securities purchased under agreements to resell		412,367	129,647
Held-to-maturity securities		5,717,202	5,624,042
Bank loans		19,353,782	19,752,043
Loans held for sale		142,617	156,912
Securities sold under agreements to repurchase		408,950	212,011
Bank deposits		25,358,517	24,274,224
Senior notes		0
Debentures to Stifel Financial Capital Trusts		0
Fair Value, Measurements, Nonrecurring [Member] \| Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash		0
Cash segregated for regulatory purposes		0
Securities purchased under agreements to resell		0
Held-to-maturity securities		94,398	114,376
Bank loans		0
Loans held for sale		0
Securities sold under agreements to repurchase		0
Bank deposits		0
Senior notes		0
Debentures to Stifel Financial Capital Trusts		$ 58,262	$ 53,385

[1] Held-to-maturity securities are carried in the consolidated statements of financial condition at amortized cost, and the changes in the value of these securities, other than impairment charges, are not reported on the consolidated financial statements.

Financial Instruments Owned a_3

Financial Instruments Owned and Financial Instruments Sold, But Not Yet Purchased (Components of Trading Securities Owned and Trading Securities Sold, But Not Yet Purchased) (Details) - USD ($) $ in Thousands		Sep. 30, 2023	Dec. 31, 2022
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Financial instruments owned, at fair value		$ 1,056,745	$ 731,752
U.S. Government Agency Securities [Member]
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Financial instruments owned, at fair value		158,086	73,608
Corporate Fixed Income Securities [Member]
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Financial instruments owned, at fair value		321,842	202,169
Corporate Equity Securities [Member]
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Financial instruments owned, at fair value		43,091	38,129
State and Municipal Securities [Member]
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Financial instruments owned, at fair value		163,139	126,237
U.S. Government Securities [Member]
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Financial instruments owned, at fair value		10,479	38,956
Securities Sold, But Not yet Purchased [Member]
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Other	[1]	12,683	5,817
Financial instruments owned, at fair value		578,290	454,817
Securities Sold, But Not yet Purchased [Member] \| U.S. Government Agency Securities [Member]
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Trading securities owned		5,439	3,971
Securities Sold, But Not yet Purchased [Member] \| Corporate Fixed Income Securities [Member]
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Fixed income securities		135,080	134,381
Securities Sold, But Not yet Purchased [Member] \| Corporate Equity Securities [Member]
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Financial instruments owned, at fair value		20,114	11,590
Securities Sold, But Not yet Purchased [Member] \| U.S. Government Securities [Member]
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Trading securities owned		334,630	254,265
Securities Sold, But Not yet Purchased [Member] \| Mortgage-Backed Securities [Member] \| Agency Securities [Member]
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Trading securities owned		70,344	44,793
Securities Owned [Member]
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Asset-backed securities		63,046	8,270
Other	[2]	97,768	71,741
Financial instruments owned, at fair value		1,056,745	731,752
Securities Owned [Member] \| U.S. Government Agency Securities [Member]
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Trading securities owned		158,086	73,608
Securities Owned [Member] \| Corporate Fixed Income Securities [Member]
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Fixed income securities		321,842	202,169
Securities Owned [Member] \| Corporate Equity Securities [Member]
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Financial instruments owned, at fair value		43,091	38,129
Securities Owned [Member] \| State and Municipal Securities [Member]
Schedule Of Trading Securities And Other Trading Assets [Line Items]
State and municipal securities		163,139	126,237
Securities Owned [Member] \| U.S. Government Securities [Member]
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Trading securities owned		10,479	38,956
Securities Owned [Member] \| Mortgage-Backed Securities [Member] \| Agency Securities [Member]
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Trading securities owned		$ 199,294	$ 172,642

[1] Includes asset-backed securities, syndicated loans, and state and municipal securities. Includes syndicated loans, non-agency mortgage-backed securities, and sovereign debt.

Financial Instruments Owned a_4

Financial Instruments Owned and Financial Instruments Sold, But Not Yet Purchased (Narrative) (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Financial instruments pledged as collateral	$ 721	$ 796.2
Securities Owned [Member]
Schedule Of Trading Securities And Other Trading Assets [Line Items]
Financial instruments pledged as collateral	$ 418.8	$ 218.9

Available-for-Sale and Held-t_3

Available-for-Sale and Held-to-Maturity Securities (Schedule of Amortized Cost and Fair Values of Available for Sale Securities and Held to Maturity Securities) (Details) - USD ($) $ in Thousands		Sep. 30, 2023		Dec. 31, 2022
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available-for-sale Securities, Amortized Cost		$ 1,762,739		$ 1,863,219
Available for sale securities, Gross Unrealized Gains	[1]	5		151
Available-for-sale Securities, Gross Unrealized Losses	[1]	(250,511)		(227,329)
Available-for-sale securities, Fair Value		1,512,233	[2]	1,636,041
Held-to-maturity Securities, Amortized cost	[3]	5,900,379		5,990,451
Held-to-maturity Securities, Gross unrealized gains	[1],[3]	5,476		3,213
Held-to-maturity Securities, Gross unrealized losses	[1],[3]	(94,255)		(255,246)
Held-to-maturity securities, Estimated Fair Value	[3]	5,811,600		5,738,418
U.S. Government Agency Securities [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available-for-sale Securities, Amortized Cost		2,368		2,345
Available for sale securities, Gross Unrealized Gains	[1]	0		6
Available-for-sale Securities, Gross Unrealized Losses	[1]	(233)		(203)
Available-for-sale securities, Fair Value		2,135		2,148
State and Municipal Securities [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available-for-sale Securities, Amortized Cost		2,350		2,350
Available for sale securities, Gross Unrealized Gains	[1]	0		1
Available-for-sale Securities, Gross Unrealized Losses	[1]	(56)		0
Available-for-sale securities, Fair Value		2,294		2,351
Mortgage-Backed Securities [Member] \| Agency Securities [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available-for-sale Securities, Amortized Cost		876,007		921,676
Available for sale securities, Gross Unrealized Gains	[1]	0		0
Available-for-sale Securities, Gross Unrealized Losses	[1]	(160,757)		(130,654)
Available-for-sale securities, Fair Value		715,250	[2]	791,022
Mortgage-Backed Securities [Member] \| Commercial [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available-for-sale Securities, Amortized Cost		70,563		71,462
Available for sale securities, Gross Unrealized Gains	[1]	0		0
Available-for-sale Securities, Gross Unrealized Losses	[1]	(4,868)		(5,349)
Available-for-sale securities, Fair Value		65,695	[2]	66,113
Mortgage-Backed Securities [Member] \| Non-Agency [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available-for-sale Securities, Amortized Cost		351		442
Available for sale securities, Gross Unrealized Gains	[1]	0		0
Available-for-sale Securities, Gross Unrealized Losses	[1]	(19)		(54)
Available-for-sale securities, Fair Value		332	[2]	388
Corporate Fixed Income Securities [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available-for-sale Securities, Amortized Cost		618,164		643,379
Available for sale securities, Gross Unrealized Gains	[1]	5		18
Available-for-sale Securities, Gross Unrealized Losses	[1]	(80,319)		(77,103)
Available-for-sale securities, Fair Value		537,850		566,294
Asset-Backed Securities [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available-for-sale Securities, Amortized Cost		192,936		221,565
Available for sale securities, Gross Unrealized Gains	[1]	0		126
Available-for-sale Securities, Gross Unrealized Losses	[1]	(4,259)		(13,966)
Available-for-sale securities, Fair Value		188,677	[2]	$ 207,725
Held-to-maturity Securities, Amortized cost		$ 5,900,379

[1] Unrealized gains/(losses) related to available-for-sale securities are reported in accumulated other comprehensive income. Due to the immaterial amount of income recognized on tax-exempt securities, yields were not calculated on a tax-equivalent basis. Held-to-maturity securities are carried in the consolidated statements of financial condition at amortized cost, and the changes in the value of these securities, other than impairment charges, are not reported on the consolidated financial statements.

Available-for-Sale and Held-t_4

Available-for-Sale and Held-to-Maturity Securities (Narrative) (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2023 USD ($) Security	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($) Security	Sep. 30, 2022 USD ($)	Dec. 31, 2022 USD ($)
Other Than Temporary Impairment Credit Losses Recognized In Earnings [Line Items]
Accrued interest receivable	$ 78,200,000		$ 78,200,000		$ 65,700,000
Proceeds from sale of available-for-sale securities	0	$ 80,000,000	10,000,000	$ 80,000,000
Net realized gains (loss) resulting from sale of available-for-sale securities		$ 100,000	(7,600,000)	$ 100,000
Financial instruments pledged as collateral	$ 721,000,000		$ 721,000,000		796,200,000
Number of available for sale securities whose amortized costs exceeded their fair values \| Security	284		284
Available-for-sale Securities, Continuous	$ 250,511,000		$ 250,511,000
Available-for-sale Securities, Continuous Unrealized	247,335,000		247,335,000
Available-for-sale Securities, Continuous	$ 1,509,735,000		$ 1,509,735,000
Percentage of available-for-sale portfolio	99.80%		99.80%
Held-to-Maturity, allowance for credit Loss	$ 0		$ 0
Available-for-Sale, allowance for credit Loss	0		0
Pledged [Member]
Other Than Temporary Impairment Credit Losses Recognized In Earnings [Line Items]
Trading securities pledged	1,300,000,000		1,300,000,000		1,300,000,000
Other Assets [Member]
Other Than Temporary Impairment Credit Losses Recognized In Earnings [Line Items]
Accrued interest receivable	$ 94,800,000		$ 94,800,000		$ 82,300,000

Available-for-Sale and Held-t_5

Available-for-Sale and Held-to-Maturity Securities (Schedule of Amortized Cost and Fair Values of Debt Securities by Contractual Maturity) (Details) - USD ($) $ in Thousands		Sep. 30, 2023		Dec. 31, 2022
Investments, Debt and Equity Securities [Abstract]
Available-for-sale Securities, debt maturities, within one year, Amortized Cost		$ 86,971		$ 16,047
Available-for-sale Securities, debt maturities, after one year through three years, Amortized Cost		206,234		185,012
Available-for-sale Securities, debt maturities, after three year through five years, Amortized Cost		38,502		123,696
Available-for-sale Securities, debt maturities, after five through ten years, Amortized Cost		456,440		442,055
Available-for-sale Securities, debt maturities, after ten years, Amortized Cost		974,592		1,096,409
Available-for-sale Securities, Amortized Cost		1,762,739		1,863,219
Available-for-sale Securities, debt maturities, within one year, Fair Value		85,380	[1]	15,877
Available-for-sale Securities, debt maturities, after one year through three years, Fair Value		191,070		178,776
Available-for-sale Securities, debt maturities, after three year through five years, Fair Value		32,679		108,707
Available-for-sale Securities, debt maturities, after five through ten years, fair value		386,538	[1]	380,362
Availably-for-sale Securities, debt maturities, after ten years, Fair Value		816,566	[1]	952,319
Available-for-sale Securities, debt maturities, Fair Value		1,512,233	[1]	1,636,041
Held-to-maturity Securities, debt maturities, after five through ten years, Amortized Cost		2,765,980		2,413,239
Held-to-maturity Securities, debt maturities, after ten years, Amortized Cost		3,134,399		3,577,212
Held-to-maturity Securities, Amortized cost	[2]	5,900,379		5,990,451
Held-to-maturity Securities, debt maturities, after five through ten years, Fair Value		2,725,890		2,323,608
Held-to-maturity Securities, debt maturities, after ten years, Fair Value		3,085,710		3,414,810
Held-to-maturity Securities, debt maturities, Fair Value	[2]	$ 5,811,600		$ 5,738,418

[1] Due to the immaterial amount of income recognized on tax-exempt securities, yields were not calculated on a tax-equivalent basis. Held-to-maturity securities are carried in the consolidated statements of financial condition at amortized cost, and the changes in the value of these securities, other than impairment charges, are not reported on the consolidated financial statements.

Available-for-Sale and Held-t_6

Available-for-Sale and Held-to-Maturity Securities (Schedule of Contractual Maturities) (Details) - USD ($) $ in Thousands		Sep. 30, 2023		Dec. 31, 2022
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available-for-sale Securities, debt maturities, within one year, Fair Value		$ 85,380	[1]	$ 15,877
Available-for-sale Securities, debt maturities, after one year through five, Fair Value	[1]	223,749
Available-for-sale Securities, debt maturities, after five through ten years, fair value		386,538	[1]	380,362
Availably-for-sale Securities, debt maturities, after ten years, Fair Value		816,566	[1]	952,319
Available-for-sale Securities, debt maturities, Fair Value		1,512,233	[1]	1,636,041
Held-to-maturity Securities, debt maturities, after five year through ten, Amortized Cost		2,765,980		2,413,239
Held-to-maturity Securities, debt maturities, after ten years, Amortized Cost		3,134,399		3,577,212
Held-to-maturity Securities, Amortized cost	[2]	5,900,379		5,990,451
U.S. Government Agency Securities [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available-for-sale Securities, debt maturities, within one year, Fair Value	[1]	0
Available-for-sale Securities, debt maturities, after one year through five, Fair Value	[1]	2,135
Available-for-sale Securities, debt maturities, after five through ten years, fair value	[1]	0
Availably-for-sale Securities, debt maturities, after ten years, Fair Value	[1]	0
Available-for-sale Securities, debt maturities, Fair Value		2,135	[1]	2,148
State and Municipal Securities [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available-for-sale Securities, debt maturities, within one year, Fair Value	[1]	0
Available-for-sale Securities, debt maturities, after one year through five, Fair Value	[1]	2,294
Available-for-sale Securities, debt maturities, after five through ten years, fair value	[1]	0
Availably-for-sale Securities, debt maturities, after ten years, Fair Value	[1]	0
Available-for-sale Securities, debt maturities, Fair Value		2,294	[1]	2,351
Corporate Fixed Income Securities [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available-for-sale Securities, debt maturities, within one year, Fair Value	[1]	85,380
Available-for-sale Securities, debt maturities, after one year through five, Fair Value	[1]	219,025
Available-for-sale Securities, debt maturities, after five through ten years, fair value	[1]	233,445
Availably-for-sale Securities, debt maturities, after ten years, Fair Value	[1]	0
Available-for-sale Securities, debt maturities, Fair Value		537,850	[1]	566,294
Mortgage-Backed Securities [Member] \| Agency Securities [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available-for-sale Securities, debt maturities, within one year, Fair Value	[1]	0
Available-for-sale Securities, debt maturities, after one year through five, Fair Value	[1]	295
Available-for-sale Securities, debt maturities, after five through ten years, fair value	[1]	92,085
Availably-for-sale Securities, debt maturities, after ten years, Fair Value	[1]	622,870
Available-for-sale Securities, debt maturities, Fair Value		715,250	[1]	791,022
Mortgage-Backed Securities [Member] \| Commercial [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available-for-sale Securities, debt maturities, within one year, Fair Value	[1]	0
Available-for-sale Securities, debt maturities, after one year through five, Fair Value	[1]	0
Available-for-sale Securities, debt maturities, after five through ten years, fair value	[1]	0
Availably-for-sale Securities, debt maturities, after ten years, Fair Value	[1]	65,695
Available-for-sale Securities, debt maturities, Fair Value		65,695	[1]	66,113
Mortgage-Backed Securities [Member] \| Non-Agency [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available-for-sale Securities, debt maturities, within one year, Fair Value	[1]	0
Available-for-sale Securities, debt maturities, after one year through five, Fair Value	[1]	0
Available-for-sale Securities, debt maturities, after five through ten years, fair value	[1]	332
Availably-for-sale Securities, debt maturities, after ten years, Fair Value	[1]	0
Available-for-sale Securities, debt maturities, Fair Value		332	[1]	388
Asset-Backed Securities [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available-for-sale Securities, debt maturities, within one year, Fair Value	[1]	0
Available-for-sale Securities, debt maturities, after one year through five, Fair Value	[1]	0
Available-for-sale Securities, debt maturities, after five through ten years, fair value	[1]	60,676
Availably-for-sale Securities, debt maturities, after ten years, Fair Value	[1]	128,001
Available-for-sale Securities, debt maturities, Fair Value		188,677	[1]	$ 207,725
Held-to-maturity Securities, debt maturities, after five year through ten, Amortized Cost		2,765,980
Held-to-maturity Securities, debt maturities, after ten years, Amortized Cost		3,134,399
Held-to-maturity Securities, Amortized cost		$ 5,900,379

[1] Due to the immaterial amount of income recognized on tax-exempt securities, yields were not calculated on a tax-equivalent basis. Held-to-maturity securities are carried in the consolidated statements of financial condition at amortized cost, and the changes in the value of these securities, other than impairment charges, are not reported on the consolidated financial statements.

Available-for-Sale and Held-t_7

Available-for-Sale and Held-to-Maturity Securities (Schedule of Gross Unrealized Losses and Estimated Fair Value by Length of Time) (Details) $ in Thousands	Sep. 30, 2023 USD ($)
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available-for-sale Securities, Gross unrealized losses, Less than 12 months	$ (3,176)
Available-for-sale Securities, Estimated fair value, Less than 12 months	97,267
Available-for-sale Securities, Gross unrealized losses, 12 months or more	(247,335)
Available-for-sale Securities, Estimated fair value, 12 months or more	1,412,468
Available-for-sale Securities, Gross unrealized losses, Total	(250,511)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value, Total	1,509,735
U.S. Government Agency Securities [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available-for-sale Securities, Gross unrealized losses, Less than 12 months	(8)
Available-for-sale Securities, Estimated fair value, Less than 12 months	427
Available-for-sale Securities, Gross unrealized losses, 12 months or more	(225)
Available-for-sale Securities, Estimated fair value, 12 months or more	1,708
Available-for-sale Securities, Gross unrealized losses, Total	(233)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value, Total	2,135
State and Municipal Securities [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available-for-sale Securities, Gross unrealized losses, Less than 12 months	(56)
Available-for-sale Securities, Estimated fair value, Less than 12 months	2,294
Available-for-sale Securities, Gross unrealized losses, 12 months or more	0
Available-for-sale Securities, Estimated fair value, 12 months or more	0
Available-for-sale Securities, Gross unrealized losses, Total	(56)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value, Total	2,294
Corporate Fixed Income Securities [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available-for-sale Securities, Gross unrealized losses, Less than 12 months	(235)
Available-for-sale Securities, Estimated fair value, Less than 12 months	6,438
Available-for-sale Securities, Gross unrealized losses, 12 months or more	(80,084)
Available-for-sale Securities, Estimated fair value, 12 months or more	528,914
Available-for-sale Securities, Gross unrealized losses, Total	(80,319)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value, Total	535,352
Mortgage-Backed Securities [Member] \| Agency Securities [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available-for-sale Securities, Gross unrealized losses, Less than 12 months	(1,228)
Available-for-sale Securities, Estimated fair value, Less than 12 months	24,100
Available-for-sale Securities, Gross unrealized losses, 12 months or more	(159,529)
Available-for-sale Securities, Estimated fair value, 12 months or more	691,150
Available-for-sale Securities, Gross unrealized losses, Total	(160,757)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value, Total	715,250
Mortgage-Backed Securities [Member] \| Commercial [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available-for-sale Securities, Gross unrealized losses, Less than 12 months	0
Available-for-sale Securities, Estimated fair value, Less than 12 months	0
Available-for-sale Securities, Gross unrealized losses, 12 months or more	(4,868)
Available-for-sale Securities, Estimated fair value, 12 months or more	65,695
Available-for-sale Securities, Gross unrealized losses, Total	(4,868)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value, Total	65,695
Mortgage-Backed Securities [Member] \| Non Agency Mortgage Backed Securities [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available-for-sale Securities, Gross unrealized losses, Less than 12 months	0
Available-for-sale Securities, Estimated fair value, Less than 12 months	0
Available-for-sale Securities, Gross unrealized losses, 12 months or more	(19)
Available-for-sale Securities, Estimated fair value, 12 months or more	332
Available-for-sale Securities, Gross unrealized losses, Total	(19)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value, Total	332
Asset-Backed Securities [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available-for-sale Securities, Gross unrealized losses, Less than 12 months	(1,649)
Available-for-sale Securities, Estimated fair value, Less than 12 months	64,008
Available-for-sale Securities, Gross unrealized losses, 12 months or more	(2,610)
Available-for-sale Securities, Estimated fair value, 12 months or more	124,669
Available-for-sale Securities, Gross unrealized losses, Total	(4,259)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value, Total	$ 188,677

Available-for-Sale and Held-t_8

Available-for-Sale and Held-to-Maturity Securities (Schedule of Amortized Cost of Held-to-Maturity Securities by Credit Quality Indicator) (Details) - USD ($) $ in Thousands		Sep. 30, 2023	Dec. 31, 2022
Schedule Of Held To Maturity Securities [Line Items]
Held-to-maturity securities, at amortized cost	[1]	$ 5,900,379	$ 5,990,451
Asset-Backed Securities [Member]
Schedule Of Held To Maturity Securities [Line Items]
Held-to-maturity securities, at amortized cost		5,900,379
Asset-Backed Securities [Member] \| AAA [Member]
Schedule Of Held To Maturity Securities [Line Items]
Held-to-maturity securities, at amortized cost		1,156,155
Asset-Backed Securities [Member] \| AA [Member]
Schedule Of Held To Maturity Securities [Line Items]
Held-to-maturity securities, at amortized cost		4,737,652
Asset-Backed Securities [Member] \| A [Member]
Schedule Of Held To Maturity Securities [Line Items]
Held-to-maturity securities, at amortized cost		5,000
Asset-Backed Securities [Member] \| C [Member]
Schedule Of Held To Maturity Securities [Line Items]
Held-to-maturity securities, at amortized cost		$ 1,572

[1] Held-to-maturity securities are carried in the consolidated statements of financial condition at amortized cost, and the changes in the value of these securities, other than impairment charges, are not reported on the consolidated financial statements.

Bank Loans (Schedule of Balance

Bank Loans (Schedule of Balance and Associated Percentage of Each Major Loan Category in Bank Loan Portfolio) (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Jun. 30, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross bank loans	$ 20,452,389		$ 20,602,558
Loans in process	(8,509)		(3,526)
Unamortized loan fees, net	(15,530)		(22,287)
Allowance for loan losses	(135,797)	$ (122,681)	(111,653)	$ (105,024)	$ (107,482)	$ (99,344)
Loans held for investment, net	$ 20,292,553		$ 20,465,092
Gross bank loans, Percent	100%		100%
Residential Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross bank loans	$ 7,957,027		$ 7,371,671
Allowance for loan losses	$ (14,607)	(14,413)	$ (20,441)	(17,465)	(22,615)	(28,560)
Gross bank loans, Percent	38.90%		35.80%
Commercial and Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross bank loans	$ 4,367,671		$ 4,897,176
Allowance for loan losses	$ (74,659)	(66,377)	$ (54,143)	(52,075)	(57,594)	(44,661)
Gross bank loans, Percent	21.40%		23.80%
Fund Banking [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross bank loans	$ 4,114,889		$ 4,182,641
Allowance for loan losses	$ (11,518)	(12,178)	$ (11,711)	(12,172)	(9,758)	(8,868)
Gross bank loans, Percent	20.10%		20.30%
Securities-Based Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross bank loans	$ 2,317,631		$ 2,724,551
Allowance for loan losses	$ (3,018)	(3,086)	$ (3,157)	(3,318)	(3,976)	(4,006)
Gross bank loans, Percent	11.30%		13.20%
Construction and Land [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross bank loans	$ 851,709		$ 593,191
Allowance for loan losses	$ (11,500)	(12,645)	$ (8,568)	(7,529)	(5,854)	(8,536)
Gross bank loans, Percent	4.20%		2.90%
Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross bank loans	$ 670,907		$ 675,599
Allowance for loan losses	$ (19,866)	(13,429)	$ (12,897)	(11,963)	(6,483)	(3,934)
Gross bank loans, Percent	3.30%		3.30%
Home Equity Lines of Credit [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross bank loans	$ 123,995		$ 107,136
Allowance for loan losses	$ (195)	(168)	$ (364)	(198)	(922)	(511)
Gross bank loans, Percent	0.60%		0.50%
Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Gross bank loans	$ 48,560		$ 50,593
Allowance for loan losses	$ (434)	$ (385)	$ (372)	$ (304)	$ (280)	$ (268)
Gross bank loans, Percent	0.20%		0.20%

Bank Loans (Narrative) (Details

Bank Loans (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
Bank Loans (Narrative) (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Mortgage loans held for sale	$ 142,617		$ 142,617		$ 156,912
Gains (losses) recognized from sale of loans	200	$ 400	2,800	$ 1,000
Accrued interest receivable	78,200		78,200		65,700
Provision for credit losses	13,418	1,550	24,911	9,722
Impaired loans more than 90 days past due	50,700		50,700		10,300
Troubled debt restructurings	100		100		200
Specific allowance	$ 13,100		$ 13,100		$ 6,500
Collateralized loan portfolio	97%		97%		97.50%
Residential Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Mortgage loans held for sale	$ 142,600		$ 142,600		$ 156,900
Unfunded Commitment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Provision for credit losses	3,400	$ 4,900	2,200	$ 17,800
Residential Real Estate [Member] \| Asset Pledged as Collateral [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans pledged as collateral	7,200,000		7,200,000		7,000,000
Stifel Bancorp [Member] \| Executive Officers and Directors of Certain Affiliated Entities [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding amount	$ 70,700		$ 70,700		$ 86,400

Bank Loans (Activity in Allowan

Bank Loans (Activity in Allowance for Loan Losses by Portfolio Segment) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning Balance	$ 122,681	$ 107,482	$ 111,653	$ 99,344
Provision	13,418	1,550	24,911	9,722
Charge-offs	(302)	(4,008)	(920)	(4,044)
Recoveries	0	0	153	2
Ending Balance	135,797	105,024	135,797	105,024
Commercial and Industrial [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning Balance	66,377	57,594	54,143	44,661
Provision	8,584	(1,511)	21,283	11,420
Charge-offs	(302)	(4,008)	(920)	(4,008)
Recoveries	0	0	153	2
Ending Balance	74,659	52,075	74,659	52,075
Commercial Real Estate [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning Balance	13,429	6,483	12,897	3,934
Provision	6,437	5,480	6,969	8,029
Charge-offs	0		0
Recoveries	0		0
Ending Balance	19,866	11,963	19,866	11,963
Residential Real Estate [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning Balance	14,413	22,615	20,441	28,560
Provision	194	(5,150)	(5,834)	(11,095)
Charge-offs	0		0
Recoveries	0		0
Ending Balance	14,607	17,465	14,607	17,465
Fund Banking [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning Balance	12,178	9,758	11,711	8,868
Provision	(660)	2,414	(193)	3,304
Charge-offs	0		0
Recoveries	0		0
Ending Balance	11,518	12,172	11,518	12,172
Construction and Land [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning Balance	12,645	5,854	8,568	8,536
Provision	(1,145)	1,675	2,932	(1,007)
Charge-offs	0		0
Recoveries	0		0
Ending Balance	11,500	7,529	11,500	7,529
Securities-Based Loans [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning Balance	3,086	3,976	3,157	4,006
Provision	(68)	(658)	(139)	(652)
Charge-offs	0		0	(36)
Recoveries	0		0
Ending Balance	3,018	3,318	3,018	3,318
Home Equity Lines of Credit [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning Balance	168	922	364	511
Provision	27	(724)	(169)	(313)
Charge-offs	0		0
Recoveries	0		0
Ending Balance	195	198	195	198
Other [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning Balance	385	280	372	268
Provision	49	24	62	36
Charge-offs	0		0
Recoveries	0		0
Ending Balance	$ 434	$ 304	$ 434	$ 304

Bank Loans (Aging of Recorded I

Bank Loans (Aging of Recorded Investment in Past Due Loans) (Details) - USD ($)		Sep. 30, 2023		Dec. 31, 2022
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		$ 16,002,000		$ 12,612,000
Total		20,452,389,000		20,602,558,000
Non-Accrual		49,647,000	[1]	10,102,000	[2]
Restructured		146,000	[1]	150,000	[2]
Nonperforming loans with no allowance		926,000	[1]	0	[2]
Total		50,719,000	[1]	10,252,000	[2]
Loans past due 90 days and still accruing interest		0		0
30 - 89 Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		5,176,000		2,510,000
90 or More Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		10,826,000		10,102,000
Current Balance [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		20,436,387,000		20,589,946,000
Residential Real Estate [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		6,612,000		3,133,000
Total		7,957,027,000		7,371,671,000
Non-Accrual		616,000	[1]	870,000	[2]
Restructured		146,000	[1]	150,000	[2]
Nonperforming loans with no allowance		924,000	[1]	0	[2]
Total		1,686,000	[1]	1,020,000	[2]
Residential Real Estate [Member] \| 30 - 89 Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		5,072,000		2,445,000
Residential Real Estate [Member] \| 90 or More Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		1,540,000		688,000
Residential Real Estate [Member] \| Current Balance [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		7,950,415,000		7,368,538,000
Commercial and Industrial [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		9,233,000		9,226,000
Total		4,367,671,000		4,897,176,000
Non-Accrual		9,233,000	[1]	9,226,000	[2]
Restructured	[1]	0
Nonperforming loans with no allowance	[1]	0
Total		9,233,000	[1]	9,226,000	[2]
Commercial and Industrial [Member] \| 30 - 89 Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		0		0
Commercial and Industrial [Member] \| 90 or More Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		9,233,000		9,226,000
Commercial and Industrial [Member] \| Current Balance [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		4,358,438,000		4,887,950,000
Fund Banking [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		0
Total		4,114,889,000		4,182,641,000
Fund Banking [Member] \| 30 - 89 Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		0
Fund Banking [Member] \| 90 or More Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		0
Fund Banking [Member] \| Current Balance [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		4,114,889,000		4,182,641,000
Securities-Based Loans [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		0
Total		2,317,631,000		2,724,551,000
Securities-Based Loans [Member] \| 30 - 89 Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		0
Securities-Based Loans [Member] \| 90 or More Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		0
Securities-Based Loans [Member] \| Current Balance [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		2,317,631,000		2,724,551,000
Commercial Real Estate [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		0		0
Total		670,907,000		675,599,000
Non-Accrual	[1]	39,747,000
Restructured	[1]	0
Nonperforming loans with no allowance	[1]	0
Total	[1]	39,747,000
Commercial Real Estate [Member] \| 30 - 89 Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		0
Commercial Real Estate [Member] \| 90 or More Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		0		0
Commercial Real Estate [Member] \| Current Balance [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		670,907,000		675,599,000
Construction and Land [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		0		0
Total		851,709,000		593,191,000
Construction and Land [Member] \| 30 - 89 Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		0
Construction and Land [Member] \| 90 or More Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		0		0
Construction and Land [Member] \| Current Balance [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		851,709,000		593,191,000
Home Equity Lines of Credit [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		73,000		211,000
Total		123,995,000		107,136,000
Non-Accrual	[1]	22,000
Restructured	[1]	0
Nonperforming loans with no allowance	[1]	0
Total	[1]	22,000
Home Equity Lines of Credit [Member] \| 30 - 89 Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		51,000		29,000
Home Equity Lines of Credit [Member] \| 90 or More Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		22,000		182,000
Home Equity Lines of Credit [Member] \| Current Balance [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		123,922,000		106,925,000
Other [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		84,000		42,000
Total		48,560,000		50,593,000
Non-Accrual		29,000	[1]	6,000	[2]
Restructured	[1]	0
Nonperforming loans with no allowance		2,000	[1]	0	[2]
Total		31,000	[1]	6,000	[2]
Other [Member] \| 30 - 89 Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		53,000		36,000
Other [Member] \| 90 or More Days Past Due [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		31,000		6,000
Other [Member] \| Current Balance [Member]
Financing Receivable Recorded Investment Past Due [Line Items]
Total Past Due		$ 48,476,000		$ 50,551,000

[1] There were no loans past due 90 days and still accruing interest at September 30, 2023. There were no loans past due 90 days and still accruing interest at December 31, 2022.

Bank Loans (Risk Category of Lo

Bank Loans (Risk Category of Loan Portfolio) (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Financing Receivable Recorded Investment [Line Items]
Gross bank loans	$ 20,452,389	$ 20,602,558
Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Gross bank loans	20,063,652	20,427,527
Special Mention [Member]
Financing Receivable Recorded Investment [Line Items]
Gross bank loans	177,943	108,027
Substandard [Member]
Financing Receivable Recorded Investment [Line Items]
Gross bank loans	199,982	56,899
Doubtful [Member]
Financing Receivable Recorded Investment [Line Items]
Gross bank loans	10,812	10,105
Residential Real Estate [Member]
Financing Receivable Recorded Investment [Line Items]
Gross bank loans	7,957,027	7,371,671
Residential Real Estate [Member] \| Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Gross bank loans	7,955,487	7,370,717
Residential Real Estate [Member] \| Special Mention [Member]
Financing Receivable Recorded Investment [Line Items]
Gross bank loans	0	266
Residential Real Estate [Member] \| Substandard [Member]
Financing Receivable Recorded Investment [Line Items]
Gross bank loans	0
Residential Real Estate [Member] \| Doubtful [Member]
Financing Receivable Recorded Investment [Line Items]
Gross bank loans	1,540	688
Commercial and Industrial [Member]
Financing Receivable Recorded Investment [Line Items]
Gross bank loans	4,367,671	4,897,176
Commercial and Industrial [Member] \| Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Gross bank loans	4,122,791	4,743,290
Commercial and Industrial [Member] \| Special Mention [Member]
Financing Receivable Recorded Investment [Line Items]
Gross bank loans	75,483	87,761
Commercial and Industrial [Member] \| Substandard [Member]
Financing Receivable Recorded Investment [Line Items]
Gross bank loans	160,164	56,899
Commercial and Industrial [Member] \| Doubtful [Member]
Financing Receivable Recorded Investment [Line Items]
Gross bank loans	9,233	9,226
Fund Banking [Member]
Financing Receivable Recorded Investment [Line Items]
Gross bank loans	4,114,889	4,182,641
Fund Banking [Member] \| Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Gross bank loans	4,114,889	4,182,641
Fund Banking [Member] \| Special Mention [Member]
Financing Receivable Recorded Investment [Line Items]
Gross bank loans	0
Fund Banking [Member] \| Substandard [Member]
Financing Receivable Recorded Investment [Line Items]
Gross bank loans	0
Fund Banking [Member] \| Doubtful [Member]
Financing Receivable Recorded Investment [Line Items]
Gross bank loans	0
Securities-Based Loans [Member]
Financing Receivable Recorded Investment [Line Items]
Gross bank loans	2,317,631	2,724,551
Securities-Based Loans [Member] \| Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Gross bank loans	2,317,629	2,724,548
Securities-Based Loans [Member] \| Special Mention [Member]
Financing Receivable Recorded Investment [Line Items]
Gross bank loans	0
Securities-Based Loans [Member] \| Substandard [Member]
Financing Receivable Recorded Investment [Line Items]
Gross bank loans	0
Securities-Based Loans [Member] \| Doubtful [Member]
Financing Receivable Recorded Investment [Line Items]
Gross bank loans	2	3
Commercial Real Estate [Member]
Financing Receivable Recorded Investment [Line Items]
Gross bank loans	670,907	675,599
Commercial Real Estate [Member] \| Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Gross bank loans	553,124	655,599
Commercial Real Estate [Member] \| Special Mention [Member]
Financing Receivable Recorded Investment [Line Items]
Gross bank loans	77,979	20,000
Commercial Real Estate [Member] \| Substandard [Member]
Financing Receivable Recorded Investment [Line Items]
Gross bank loans	39,804
Construction and Land [Member]
Financing Receivable Recorded Investment [Line Items]
Gross bank loans	851,709	593,191
Construction and Land [Member] \| Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Gross bank loans	827,228	593,191
Construction and Land [Member] \| Special Mention [Member]
Financing Receivable Recorded Investment [Line Items]
Gross bank loans	24,481
Construction and Land [Member] \| Substandard [Member]
Financing Receivable Recorded Investment [Line Items]
Gross bank loans	0
Construction and Land [Member] \| Doubtful [Member]
Financing Receivable Recorded Investment [Line Items]
Gross bank loans	0
Home Equity Lines of Credit [Member]
Financing Receivable Recorded Investment [Line Items]
Gross bank loans	123,995	107,136
Home Equity Lines of Credit [Member] \| Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Gross bank loans	123,973	106,954
Home Equity Lines of Credit [Member] \| Special Mention [Member]
Financing Receivable Recorded Investment [Line Items]
Gross bank loans	0
Home Equity Lines of Credit [Member] \| Substandard [Member]
Financing Receivable Recorded Investment [Line Items]
Gross bank loans	0
Home Equity Lines of Credit [Member] \| Doubtful [Member]
Financing Receivable Recorded Investment [Line Items]
Gross bank loans	22	182
Other [Member]
Financing Receivable Recorded Investment [Line Items]
Gross bank loans	48,560	50,593
Other [Member] \| Pass [Member]
Financing Receivable Recorded Investment [Line Items]
Gross bank loans	48,531	50,587
Other [Member] \| Special Mention [Member]
Financing Receivable Recorded Investment [Line Items]
Gross bank loans	0
Other [Member] \| Substandard [Member]
Financing Receivable Recorded Investment [Line Items]
Gross bank loans	14
Other [Member] \| Doubtful [Member]
Financing Receivable Recorded Investment [Line Items]
Gross bank loans	$ 15	$ 6

Bank Loans (Schedule of Term Lo

Bank Loans (Schedule of Term Loans Amortized Cost Basis by Origination Year and Revolving Cost Amortized Cost Basis) (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	$ 20,452,389	$ 20,602,558
Residential Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	7,957,027	7,371,671
Residential Real Estate [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Three [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	1,009,765
Residential Real Estate [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Two [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	2,678,433
Residential Real Estate [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty One [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	2,349,447
Residential Real Estate [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	934,506
Residential Real Estate [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Nineteen [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	418,909
Residential Real Estate [Member] \| Prior [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	565,967
Commercial and Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	4,367,671	4,897,176
Commercial and Industrial [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Three [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	560,666
Commercial and Industrial [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Two [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	1,204,467
Commercial and Industrial [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty One [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	1,170,830
Commercial and Industrial [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	238,076
Commercial and Industrial [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Nineteen [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	219,073
Commercial and Industrial [Member] \| Prior [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	207,841
Commercial and Industrial [Member] \| Revolving Loans Amortized Cost Basis [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	766,718
Fund Banking [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	4,114,889	4,182,641
Fund Banking [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Two [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	55,267
Fund Banking [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	578
Fund Banking [Member] \| Revolving Loans Amortized Cost Basis [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	4,059,044
Securities-Based Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	2,317,631	2,724,551
Securities-Based Loans [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Three [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	13,954
Securities-Based Loans [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Two [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	28,362
Securities-Based Loans [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty One [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	2,503
Securities-Based Loans [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	48,070
Securities-Based Loans [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Nineteen [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	27,278
Securities-Based Loans [Member] \| Prior [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	9,293
Securities-Based Loans [Member] \| Revolving Loans Amortized Cost Basis [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	2,188,171
Construction and Land [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	851,709	593,191
Construction and Land [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Three [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	26,811
Construction and Land [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Two [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	376,902
Construction and Land [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty One [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	191,175
Construction and Land [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	171,049
Construction and Land [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Nineteen [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	85,772
Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	670,907	675,599
Commercial Real Estate [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Three [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	30,849
Commercial Real Estate [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Two [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	416,640
Commercial Real Estate [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty One [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	103,868
Commercial Real Estate [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	31,201
Commercial Real Estate [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Nineteen [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	20,764
Commercial Real Estate [Member] \| Prior [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	67,585
Home Equity Lines of Credit [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	123,995	107,136
Home Equity Lines of Credit [Member] \| Revolving Loans Amortized Cost Basis [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	123,995
Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	48,560	50,593
Other [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Three [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	4,000
Other [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Two [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	3,991
Other [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	10,000
Other [Member] \| Prior [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	22,555
Other [Member] \| Revolving Loans Amortized Cost Basis [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	8,014
Pass [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	20,063,652	20,427,527
Pass [Member] \| Residential Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	7,955,487	7,370,717
Pass [Member] \| Residential Real Estate [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Three [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	1,009,765
Pass [Member] \| Residential Real Estate [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Two [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	2,677,509
Pass [Member] \| Residential Real Estate [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty One [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	2,349,447
Pass [Member] \| Residential Real Estate [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	934,506
Pass [Member] \| Residential Real Estate [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Nineteen [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	418,909
Pass [Member] \| Residential Real Estate [Member] \| Prior [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	565,351
Pass [Member] \| Commercial and Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	4,122,791	4,743,290
Pass [Member] \| Commercial and Industrial [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Three [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	560,666
Pass [Member] \| Commercial and Industrial [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Two [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	1,167,661
Pass [Member] \| Commercial and Industrial [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty One [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	1,060,510
Pass [Member] \| Commercial and Industrial [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	220,224
Pass [Member] \| Commercial and Industrial [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Nineteen [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	215,160
Pass [Member] \| Commercial and Industrial [Member] \| Prior [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	199,041
Pass [Member] \| Commercial and Industrial [Member] \| Revolving Loans Amortized Cost Basis [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	699,529
Pass [Member] \| Fund Banking [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	4,114,889	4,182,641
Pass [Member] \| Fund Banking [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Two [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	55,267
Pass [Member] \| Fund Banking [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	578
Pass [Member] \| Fund Banking [Member] \| Revolving Loans Amortized Cost Basis [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	4,059,044
Pass [Member] \| Securities-Based Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	2,317,629	2,724,548
Pass [Member] \| Securities-Based Loans [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Three [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	13,954
Pass [Member] \| Securities-Based Loans [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Two [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	28,362
Pass [Member] \| Securities-Based Loans [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty One [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	2,503
Pass [Member] \| Securities-Based Loans [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	48,070
Pass [Member] \| Securities-Based Loans [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Nineteen [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	27,278
Pass [Member] \| Securities-Based Loans [Member] \| Prior [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	9,293
Pass [Member] \| Securities-Based Loans [Member] \| Revolving Loans Amortized Cost Basis [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	2,188,169
Pass [Member] \| Construction and Land [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	827,228	593,191
Pass [Member] \| Construction and Land [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Three [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	26,811
Pass [Member] \| Construction and Land [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Two [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	376,902
Pass [Member] \| Construction and Land [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty One [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	191,175
Pass [Member] \| Construction and Land [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	171,049
Pass [Member] \| Construction and Land [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Nineteen [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	61,291
Pass [Member] \| Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	553,124	655,599
Pass [Member] \| Commercial Real Estate [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Three [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	30,849
Pass [Member] \| Commercial Real Estate [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Two [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	356,640
Pass [Member] \| Commercial Real Estate [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty One [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	64,064
Pass [Member] \| Commercial Real Estate [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	31,201
Pass [Member] \| Commercial Real Estate [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Nineteen [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	2,785
Pass [Member] \| Commercial Real Estate [Member] \| Prior [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	67,585
Pass [Member] \| Home Equity Lines of Credit [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	123,973	106,954
Pass [Member] \| Home Equity Lines of Credit [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Three [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	0
Pass [Member] \| Home Equity Lines of Credit [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Two [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	0
Pass [Member] \| Home Equity Lines of Credit [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty One [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	0
Pass [Member] \| Home Equity Lines of Credit [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	0
Pass [Member] \| Home Equity Lines of Credit [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Nineteen [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	0
Pass [Member] \| Home Equity Lines of Credit [Member] \| Prior [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	0
Pass [Member] \| Home Equity Lines of Credit [Member] \| Revolving Loans Amortized Cost Basis [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	123,973
Pass [Member] \| Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	48,531	50,587
Pass [Member] \| Other [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Three [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	4,000
Pass [Member] \| Other [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Two [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	3,991
Pass [Member] \| Other [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	10,000
Pass [Member] \| Other [Member] \| Prior [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	22,555
Pass [Member] \| Other [Member] \| Revolving Loans Amortized Cost Basis [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	7,985
Special Mention [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	177,943	108,027
Special Mention [Member] \| Residential Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	0	266
Special Mention [Member] \| Commercial and Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	75,483	87,761
Special Mention [Member] \| Commercial and Industrial [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Two [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	9,839
Special Mention [Member] \| Commercial and Industrial [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty One [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	35,909
Special Mention [Member] \| Commercial and Industrial [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	17,419
Special Mention [Member] \| Commercial and Industrial [Member] \| Revolving Loans Amortized Cost Basis [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	12,316
Special Mention [Member] \| Fund Banking [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	0
Special Mention [Member] \| Securities-Based Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	0
Special Mention [Member] \| Construction and Land [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	24,481
Special Mention [Member] \| Construction and Land [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Nineteen [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	24,481
Special Mention [Member] \| Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	77,979	20,000
Special Mention [Member] \| Commercial Real Estate [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Two [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	60,000
Special Mention [Member] \| Commercial Real Estate [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Nineteen [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	17,979
Special Mention [Member] \| Home Equity Lines of Credit [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	0
Special Mention [Member] \| Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	0
Substandard [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	199,982	56,899
Substandard [Member] \| Residential Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	0
Substandard [Member] \| Commercial and Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	160,164	56,899
Substandard [Member] \| Commercial and Industrial [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Two [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	26,967
Substandard [Member] \| Commercial and Industrial [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty One [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	74,411
Substandard [Member] \| Commercial and Industrial [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Nineteen [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	3,913
Substandard [Member] \| Commercial and Industrial [Member] \| Revolving Loans Amortized Cost Basis [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	54,873
Substandard [Member] \| Fund Banking [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	0
Substandard [Member] \| Securities-Based Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	0
Substandard [Member] \| Construction and Land [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	0
Substandard [Member] \| Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	39,804
Substandard [Member] \| Commercial Real Estate [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty One [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	39,804
Substandard [Member] \| Home Equity Lines of Credit [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	0
Substandard [Member] \| Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	14
Substandard [Member] \| Other [Member] \| Revolving Loans Amortized Cost Basis [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	14
Doubtful [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	10,812	10,105
Doubtful [Member] \| Residential Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	1,540	688
Doubtful [Member] \| Residential Real Estate [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty Two [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	924
Doubtful [Member] \| Residential Real Estate [Member] \| Prior [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	616
Doubtful [Member] \| Commercial and Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	9,233	9,226
Doubtful [Member] \| Commercial and Industrial [Member] \| Term Loans Amortized Cost Basis By Origination Year Two Thousand Twenty [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	433
Doubtful [Member] \| Commercial and Industrial [Member] \| Prior [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	8,800
Doubtful [Member] \| Fund Banking [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	0
Doubtful [Member] \| Securities-Based Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	2	3
Doubtful [Member] \| Securities-Based Loans [Member] \| Revolving Loans Amortized Cost Basis [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	2
Doubtful [Member] \| Construction and Land [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	0
Doubtful [Member] \| Home Equity Lines of Credit [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	22	182
Doubtful [Member] \| Home Equity Lines of Credit [Member] \| Revolving Loans Amortized Cost Basis [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	22
Doubtful [Member] \| Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	15	$ 6
Doubtful [Member] \| Other [Member] \| Revolving Loans Amortized Cost Basis [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term loans amortized cost basis by origination year	$ 15

Goodwill and Intangible Asset_2

Goodwill and Intangible Assets (Carrying Amount Of Goodwill And Intangible Assets) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Schedule of Goodwill and Intangible Assets [Line Items]
Goodwill, Beginning balance			$ 1,326,548
Goodwill, Adjustments			72,581
Goodwill, Ending balance	$ 1,399,129		1,399,129
Intangible assets, Beginning balance			130,589
Intangible assets, Adjustments			10,726
Intangible assets, Amortization	(4,800)	$ (4,400)	(13,872)	$ (14,966)
Intangible assets, Ending balance	127,443		127,443
Global Wealth Management [Member]
Schedule of Goodwill and Intangible Assets [Line Items]
Goodwill, Beginning balance			335,009
Goodwill, Adjustments			0
Goodwill, Ending balance	335,009		335,009
Intangible assets, Beginning balance			33,499
Intangible assets, Amortization			(3,652)
Intangible assets, Ending balance	29,847		29,847
Institutional Group [Member]
Schedule of Goodwill and Intangible Assets [Line Items]
Goodwill, Beginning balance			991,539
Goodwill, Adjustments			72,581
Goodwill, Ending balance	1,064,120		1,064,120
Intangible assets, Beginning balance			97,090
Intangible assets, Adjustments			10,726
Intangible assets, Amortization			(10,220)
Intangible assets, Ending balance	$ 97,596		$ 97,596

Goodwill and Intangible Asset_3

Goodwill and Intangible Assets (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Aug. 01, 2023
Schedule of Goodwill and Intangible Assets [Line Items]
Amortization of intangible assets	$ 4,800	$ 4,400	$ 13,872	$ 14,966
Institutional Group [Member]
Schedule of Goodwill and Intangible Assets [Line Items]
Goodwill and Intangible Asset	$ 61,900		61,900		$ 21,400
Amortization of intangible assets			$ 10,220
Customer Relationships [Member]
Schedule of Goodwill and Intangible Assets [Line Items]
Weighted-average remaining lives of intangible assets	9 years 9 months 18 days		9 years 9 months 18 days
Trade Names [Member]
Schedule of Goodwill and Intangible Assets [Line Items]
Weighted-average remaining lives of intangible assets	7 years 3 months 18 days		7 years 3 months 18 days
Core Deposits [Member]
Schedule of Goodwill and Intangible Assets [Line Items]
Weighted-average remaining lives of intangible assets	1 year 4 months 24 days		1 year 4 months 24 days
Non-Compete Agreements [Member]
Schedule of Goodwill and Intangible Assets [Line Items]
Weighted-average remaining lives of intangible assets	4 years 6 months		4 years 6 months
Estimated Sierra Pacific intangibles[Member]
Schedule of Goodwill and Intangible Assets [Line Items]
Weighted-average remaining lives of intangible assets	4 years 9 months 18 days		4 years 9 months 18 days
Investment Banking Backlog [Member]
Schedule of Goodwill and Intangible Assets [Line Items]
Weighted-average remaining lives of intangible assets	4 years 10 months 24 days		4 years 10 months 24 days

Goodwill and Intangible Asset_4

Goodwill and Intangible Assets (Intangible Assets) (Details) - USD ($) $ in Thousands		Sep. 30, 2023	Dec. 31, 2022
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value		$ 290,342	$ 279,590
Accumulated Amortization		162,899	149,001
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value		226,984	225,631
Accumulated Amortization		119,306	109,216
Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value		30,359	30,359
Accumulated Amortization		21,995	20,861
Non-Compete Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value		10,071	9,440
Accumulated Amortization		8,060	7,158
Core Deposits [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value		8,615	8,615
Accumulated Amortization		7,990	7,389
Investment Banking Backlog [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value		8,913	5,545
Accumulated Amortization		5,368	$ 4,377
Estimated Sierra Pacific Intangibles Member
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	[1]	5,400
Accumulated Amortization	[1]	$ 180

[1] (1) See discussion regarding the allocation of the estimated goodwill and intangibles recorded for the Sierra Pacific acquisition.

Goodwill and Intangible Asset_5

Goodwill and Intangible Assets (Amortization Expense In Future Periods) (Details) $ in Thousands	Sep. 30, 2023 USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Remainder of 2023	$ 4,732
2024	18,243
2025	16,032
2026	14,442
2027	14,142
Thereafter	57,734
Future Amortization Expense Total	$ 125,325

Borrowings and Federal Home L_2

Borrowings and Federal Home Loan Bank Advances (Narrative) (Details)		9 Months Ended
	Sep. 27, 2023 USD ($)	Sep. 30, 2023 USD ($) Banks
Short-term Debt [Line Items]
Uncommitted secured lines of credit		$ 880,000,000
Number of banks \| Banks		4
Daily borrowings under our uncommitted secured lines		$ 115,000,000
Compensating balances		0
Federal Home Loan Bank advances		0
Credit Agreement [Member]
Short-term Debt [Line Items]
Credit agreement maturity date	Sep. 27, 2028
Termination of committed revolving credit facility	$ 500,000,000
Committed revolving credit facility with bank and broker dealer - subsidiary	$ 750,000,000
Outstanding credit facility		0
Company Owned Securities [Member]
Short-term Debt [Line Items]
Uncommitted secured lines of credit		$ 0
Federal Home Loan Bank advances [Member]
Short-term Debt [Line Items]
Weighted average interest rate on borrowings		4.97%

Senior Notes (Summary of Senior

Senior Notes (Summary of Senior Notes) (Details) - USD ($) $ in Thousands		Sep. 30, 2023	Dec. 31, 2022	May 31, 2020	Oct. 31, 2017	Jul. 31, 2014
Debt Instrument [Line Items]
Long-term Debt, gross		$ 1,125,000	$ 1,125,000
Debt issuance costs, net		(9,640)	(10,446)
Senior notes, net		1,115,360	1,114,554
Senior notes 4.25% due 2024 [Member]
Debt Instrument [Line Items]
Long-term Debt, gross	[1]	500,000	500,000
Senior notes, net						$ 300,000
Senior notes 4.00% due 2030 [Member]
Debt Instrument [Line Items]
Long-term Debt, gross	[2]	400,000	400,000
Senior notes, net				$ 400,000
Senior notes 5.20% due 2047 [Member]
Debt Instrument [Line Items]
Long-term Debt, gross	[3]	$ 225,000	$ 225,000
Senior notes, net					$ 200,000

[1] In July 2014, we sold in a registered underwritten public offering, $ 300.0 million in aggregate principal amount of 4.25 % senior notes due July 2024 . Interest on these senior notes is payable semi-annually in arrears. We may redeem the notes in whole or in part, at our option, at a redemption price equal to 100 % of their principal amount, plus a “make-whole” premium and accrued and unpaid interest, if any, to the date of redemption. In July 2016, we issued an additional $ 200.0 million in aggregate principal amount of 4.25% senior notes due 2024. In May 2020, we sold in a registered underwritten public offering, $ 400.0 million in aggregate principal amount of 4.00 % senior notes due May 2030 . Interest on these senior notes is payable semi-annually in arrears. We may redeem the notes in whole or in part, at our option, at a redemption price equal to the greater of a) 100 % of their principal amount, or b) discounted present value at Treasury rate plus 50 basis points prior to February 15, 2030, and on or after February 15, 2030, at 100 % of their principal amount, and accrued and unpaid interest, if any, to the date of redemption. In October 2017, we completed the pricing of a registered underwritten public offering of $ 200.0 million in aggregate principal amount of 5.20 % senior notes due October 2047 . Interest on the senior notes is payable quarterly in arrears. On or after October 15, 2022, we may redeem some or all of the senior notes at any time at a redemption price equal to 100 % of the principal amount of the notes being redeemed plus accrued interest thereon to the redemption date. On October 27, 2017, we completed the sale of an additional $ 25.0 million aggregate principal amount of Notes pursuant to the over-allotment option.

Senior Notes (Summary of Seni_2

Senior Notes (Summary of Senior Notes) (Parenthetical) (Details) - USD ($) $ in Thousands			1 Months Ended	9 Months Ended
	Feb. 15, 2030	Oct. 27, 2017	Jul. 31, 2016	Sep. 30, 2023	Dec. 31, 2022	May 31, 2020	Oct. 31, 2017	Jul. 31, 2014
Debt Instrument [Line Items]
Long-term Debt				$ 1,115,360	$ 1,114,554
Senior notes 4.25% due 2024 [Member]
Debt Instrument [Line Items]
Debt Instrument Interest Rate Stated Percentage				4.25%	4.25%
Long-term Debt								$ 300,000
Debt instrument, maturity date				Jul. 31, 2024
Redemption price, percentage of principal amount				100%
Additional issuance of long-term debt			$ 200,000
Senior notes 4.00% due 2030 [Member]
Debt Instrument [Line Items]
Debt Instrument Interest Rate Stated Percentage				4%	4%
Long-term Debt						$ 400,000
Debt instrument, maturity date				May 31, 2030
Senior notes 4.00% due 2030 [Member] \| After February 15, 2030 [Member]
Debt Instrument [Line Items]
Redemption price, percentage of principal amount				100%
Senior notes 4.00% due 2030 [Member] \| Measurement Input, Discount Rate [Member] \| Prior to February 15, 2030 [Member]
Debt Instrument [Line Items]
Redemption at treasury rate basis point				0.50%
Senior notes 4.00% due 2030 [Member] \| Forecast [Member]
Debt Instrument [Line Items]
Redemption price, percentage of principal amount	100%
Senior notes 5.20% due 2047 [Member]
Debt Instrument [Line Items]
Debt Instrument Interest Rate Stated Percentage				5.20%	5.20%
Long-term Debt							$ 200,000
Debt instrument, maturity date				Oct. 31, 2047
Redemption price, percentage of principal amount				100%
Additional issuance of long-term debt		$ 25,000

Senior Notes (Schedule Of Corpo

Senior Notes (Schedule Of Corporate Debt Principal Maturities) (Details) - Non Recourse Debt [Member] $ in Thousands	Sep. 30, 2023 USD ($)
Debt Instrument [Line Items]
2024	$ 500,000
Thereafter	625,000
Long-term Debt, Total	$ 1,125,000

Bank Deposits (Schedule of Depo

Bank Deposits (Schedule of Deposits) (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Deposits Liabilities, Balance Sheet, Reported Amounts [Abstract]
Demand deposits (interest-bearing)	$ 27,335,890	$ 26,805,073
Demand deposits (non-interest-bearing)	258,466	305,138
Certificates of deposit	2	6,900
Bank deposits	$ 27,594,358	$ 27,117,111

Bank Deposits (Narrative) (Deta

Bank Deposits (Narrative) (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Bank Deposits [Line Items]
Weighted average interest rate on deposits	2.48%	0.58%
Brokerage Customers Deposits [Member]
Bank Deposits [Line Items]
Deposits of related parties	$ 24,700	$ 25,300
Stifel Nicolaus [Member]
Bank Deposits [Line Items]
Interest bearing and time deposits of executive officers, directors, and affiliates	$ 10.3	$ 9.8

Derivative Instruments and He_3

Derivative Instruments and Hedging Activities (Schedule of Fair Values of Derivative Instruments) (Details) - USD ($) $ in Thousands		Sep. 30, 2023	Dec. 31, 2022
Derivative [Line Items]
Derivative Assets	[1]	$ 166,038	$ 142,042
Notional value		1,876,064	1,395,135
Interest Rate Contract [Member]
Derivative [Line Items]
Derivative Assets		$ 166,038	$ 142,042
Derivative Asset, Statement of Financial Position [Extensible Enumeration]		Other Assets	Other Assets
Derivative Liabilities		$ 166,015	$ 142,028
Derivative Liability, Statement of Financial Position [Extensible Enumeration]		Accounts Payable and Accrued Liabilities	Accounts Payable and Accrued Liabilities
Notional value		$ 1,876,064	$ 1,395,135

[1] Included in other assets in the consolidated statements of financial condition.

Derivative Instruments and He_4

Derivative Instruments and Hedging Activities (Schedule of Maturiries of Derivative Instruments) (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Within one year	$ 41,369
One to three years	581,049
Three to five years	381,601
Five to ten years	758,302
Ten to fifteen years	94,603
Fifteen years and thereafter	19,140
Total	$ 1,876,064	$ 1,395,135

Derivative Instruments and He_5

Derivative Instruments and Hedging Activities (Schedule of Distribution of Customer Interest Rate Derivative) (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Derivative [Line Items]
Derivative, Notional Amount	$ 1,876,064	$ 1,395,135
Swap [Member]
Derivative [Line Items]
Derivative, Notional Amount	1,706,064	1,375,135
Written options [Member]
Derivative [Line Items]
Derivative, Notional Amount	$ 170,000	$ 20,000

Disclosures About Offsetting _3

Disclosures About Offsetting Assets and Liabilities - Financial Assets and Derivative Assets that are Subject to Offset (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Offsetting Assets [Line Items]
Gross amounts of recognized assets, Securities borrowing	$ 180,156	$ 219,052
Net amounts presented in the Statement of Financial Condition, Securities borrowing	180,156	219,052
Gross amounts not offset in the Statement of Financial Position, Financial instruments, Securities borrowing	(23,613)	(46,647)
Gross amounts not offset in the Statement of Financial Position, Collateral received, Securities borrowing	(147,773)	(160,139)
Securities borrowed, Net amount	8,770	12,266
Gross amounts of recognized assets, Reverse repurchase agreements	412,367	348,162
Net amounts presented in the Statement of Financial Condition, Securities purchased under agreements to resell	412,367	348,162
Gross amounts not offset in the Statement of Financial Position, Financial instruments, Securities purchased under agreements to resell	(19,706)	(12,028)
Gross amounts not offset in the Statement of Financial Position, Collateral received, Securities purchased under agreements to resell	(390,288)	(334,537)
Securities purchased under agreements to resell, Net amount	2,373	1,597
Gross amounts of recognized assets	758,561	709,256
Gross amounts not offset in the Statement of Financial Position	(44,805)	(60,634)
Net amounts presented in the Statements of Financial Condition	758,561	709,256
Gross amounts not offset in the Statement of Financial Position, Collateral received	(636,575)	(550,244)
Net amount	77,181	98,378
Interest Rate Contract [Member]
Offsetting Assets [Line Items]
Gross amounts of recognized assets	166,038	142,042
Gross amounts not offset in the Statement of Financial Position	(1,486)	(1,959)
Net amounts presented in the Statements of Financial Condition	166,038	142,042
Gross amounts not offset in the Statement of Financial Position, Collateral received	(98,514)	(55,568)
Offsetting assets interest rate contracts net	$ 66,038	$ 84,515

Disclosures About Offsetting _4

Disclosures About Offsetting Assets and Liabilities - Financial Assets and Derivative Assets that are Subject to Offset (Details) (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Offsetting Assets [Line Items]
Fair value of securities pledged as collateral	$ 390,288	$ 334,537
Fair Value Of Securities Received As Collateral [Member]
Offsetting Assets [Line Items]
Fair value of securities pledged as collateral	410,100	346,500
Fair Value Of Securities Received As Collateral [Member] \| Interest Rate Contract [Member]
Offsetting Assets [Line Items]
Fair value of securities pledged as collateral	$ 74,400	$ 50,000

Disclosures About Offsetting _5

Disclosures About Offsetting Assets and Liabilities - Financial Liabilities and Derivative Liabilities that are Subject to Offset (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Offsetting Liabilities [Line Items]
Gross amounts of recognized liabilities, Securities lending	$ (104,570)	$ (68,105)
Net amounts presented in the Statement of Financial Condition, Securities lending	(104,570)	(68,105)
Gross amounts not offset in the Statement of Financial Position, Financial instruments, Securities lending	(23,613)	46,647
Gross amounts not offset in the Statement of Financial Position, Collateral pledged, Securities lending	80,956	21,448
Securities lending, Net amount	(1)	(10)
Gross amounts of recognized liabilities, Securities purchased under agreements to resell	(408,950)	(212,011)
Net amounts presented in the Statement of Financial Condition, Securities purchased under agreements to resell	(408,950)	(212,011)
Gross amounts not offset in the Statement of Financial Position, Financial instruments, Securities purchased under agreements to resell	19,706	12,028
Gross amounts not offset in the Statement of Financial Position, Collateral pledged, Securities purchased under agreements to resell	389,244	199,983
Gross amounts of recognized liabilities	(679,535)	(422,144)
Net amounts presented in the Statement of Financial Condition	(679,535)	(422,144)
Gross amounts not offset in the Statement of Financial Position, Financial instruments	(44,805)	60,634
Gross amounts not offset in the Statement of Financial Condition, Collateral pledged	522,853	247,281
Net amount	(111,877)	(114,229)
Interest Rate Contract [Member]
Offsetting Liabilities [Line Items]
Gross amounts of recognized liabilities	(166,015)	(142,028)
Net amounts presented in the Statement of Financial Condition	(166,015)	(142,028)
Gross amounts not offset in the Statement of Financial Position, Financial instruments	1,486	1,959
Gross amounts not offset in the Statement of Financial Condition, Collateral pledged	52,653	25,850
Offsetting liability interest rate contracts net	$ 111,876	$ (114,219)

Disclosures About Offsetting _6

Disclosures About Offsetting Assets and Liabilities - Financial Liabilities and Derivative Liabilities that are Subject to Offset (Details) (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Offsetting Liabilities [Line Items]
Fair value of securities pledged as collateral to counter party	$ 389,244	$ 199,983
Fair Value Of Securities Pledged As Collateral [Member] \| Interest Rate Contract [Member]
Offsetting Liabilities [Line Items]
Fair value of securities pledged as collateral to counter party	25,200	24,100
U.S. Government Agency Securities And U.S. Government Securities And Corporate Fixed Income Securities [Member] \| Fair Value Of Securities Pledged As Collateral [Member]
Offsetting Liabilities [Line Items]
Fair value of securities pledged as collateral to counter party	$ 418,700	$ 218,300

Commitments, Guarantees, and _2

Commitments, Guarantees, and Contingencies (Narrative) (Details) $ in Millions	Sep. 30, 2023 USD ($)
Purchase Commitments [Member] \| To Be Announced Security Contracts [Member]
Loss Contingencies [Line Items]
Estimated fair value of the purchase commitments	$ 70.3

Regulatory Capital Requiremen_3

Regulatory Capital Requirements (Narrative) (Details) $ in Millions	Sep. 30, 2023 USD ($)
Our Other Broker-Dealer Subsidiaries
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Ratio of indebtedness to net capital	15
Stifel Nicolaus [Member]
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Aggregate debit balances	36.50%
Net capital	$ 395.4
Excess of minimum required net capital	373.8
Stifel Financial Corp. [Member]
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Net capital under the alternative method	$ 1
Aggregate debit balances	2%

Regulatory Capital Requiremen_4

Regulatory Capital Requirements (Schedule Of Total Risk-Based, Tier 1 Risk-Based, And Tier 1 Leverage Ratios) (Details) $ in Thousands	Sep. 30, 2023 USD ($)
Stifel Financial Corp. [Member]
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Tier 1 capital, Actual Amount	$ 3,913,952
Tier 1 capital, Actual Ratio	0.169
Tier 1 capital For Capital Adequacy Purposes, Amount	$ 1,393,131
Tier 1 capital For Capital Adequacy Purposes, Ratio	0.06
Tier 1 capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 1,857,509
Tier 1 To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	0.08
Total capital, Actual Amount	$ 4,136,017
Total capital, Actual Ratio	0.178
Total capital For Capital Adequacy Purposes, Amount	$ 1,857,509
Total capital For Capital Adequacy Purposes, Ratio	0.08
Total capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 2,321,886
Total capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	0.10
Tier 1 leverage, Actual Amount	$ 3,913,952
Tier 1 leverage, Actual Ratio	0.108
Tier 1 leverage For Capital Adequacy Purposes, Amount	$ 1,454,233
Tier 1 leverage For Capital Adequacy Purposes, Ratio	0.04
Tier 1 leverage To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 1,817,791
Tier 1 leverage To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	0.05
Stifel Financial Corp. [Member] \| Common Stock [Member]
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Tier 1 capital, Actual Amount	$ 3,228,952
Tier 1 capital, Actual Ratio	0.139
Tier 1 capital For Capital Adequacy Purposes, Amount	$ 1,044,849
Tier 1 capital For Capital Adequacy Purposes, Ratio	0.045
Tier 1 capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 1,509,226
Tier 1 To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	0.065
Stifel Bank & Trust [Member]
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Tier 1 capital, Actual Amount	$ 1,489,819
Tier 1 capital, Actual Ratio	0.108
Tier 1 capital For Capital Adequacy Purposes, Amount	$ 826,965
Tier 1 capital For Capital Adequacy Purposes, Ratio	0.06
Tier 1 capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 1,102,620
Tier 1 To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	0.08
Total capital, Actual Amount	$ 1,625,012
Total capital, Actual Ratio	0.118
Total capital For Capital Adequacy Purposes, Amount	$ 1,102,620
Total capital For Capital Adequacy Purposes, Ratio	0.08
Total capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 1,378,275
Total capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	0.10
Tier 1 leverage, Actual Amount	$ 1,489,819
Tier 1 leverage, Actual Ratio	0.077
Tier 1 leverage For Capital Adequacy Purposes, Amount	$ 774,198
Tier 1 leverage For Capital Adequacy Purposes, Ratio	0.04
Tier 1 leverage To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 967,748
Tier 1 leverage To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	0.05
Stifel Bank & Trust [Member] \| Common Stock [Member]
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Tier 1 capital, Actual Amount	$ 1,489,819
Tier 1 capital, Actual Ratio	0.108
Tier 1 capital For Capital Adequacy Purposes, Amount	$ 620,224
Tier 1 capital For Capital Adequacy Purposes, Ratio	0.045
Tier 1 capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 895,878
Tier 1 To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	0.065
Stifel Bank [Member]
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Tier 1 capital, Actual Amount	$ 690,456
Tier 1 capital, Actual Ratio	0.146
Tier 1 capital For Capital Adequacy Purposes, Amount	$ 283,451
Tier 1 capital For Capital Adequacy Purposes, Ratio	0.06
Tier 1 capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 377,934
Tier 1 To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	0.08
Total capital, Actual Amount	$ 722,840
Total capital, Actual Ratio	0.153
Total capital For Capital Adequacy Purposes, Amount	$ 377,934
Total capital For Capital Adequacy Purposes, Ratio	0.08
Total capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 472,418
Total capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	0.10
Tier 1 leverage, Actual Amount	$ 690,456
Tier 1 leverage, Actual Ratio	0.071
Tier 1 leverage For Capital Adequacy Purposes, Amount	$ 390,341
Tier 1 leverage For Capital Adequacy Purposes, Ratio	0.040
Tier 1 leverage To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 487,926
Tier 1 leverage To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	0.05
Stifel Bank [Member] \| Common Stock [Member]
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Tier 1 capital, Actual Amount	$ 690,456
Tier 1 capital, Actual Ratio	0.146
Tier 1 capital For Capital Adequacy Purposes, Amount	$ 212,588
Tier 1 capital For Capital Adequacy Purposes, Ratio	0.045
Tier 1 capital To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 307,071
Tier 1 To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio	0.065

Operating Leases (Narrative) (D

Operating Leases (Narrative) (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Dec. 31, 2022
Lessee Lease Description [Line Items]
Operating lease right-of-use assets, net	$ 786,496	$ 775,949
Operating lease liabilities	$ 831,718	$ 819,700
Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration]	Accounts Payable and Accrued Liabilities	Accounts Payable and Accrued Liabilities
Minimum [Member] \| Office Space and Office Equipment [Member]
Lessee Lease Description [Line Items]
Operating leases remaining lease term	1 year
Maximum [Member] \| Office Space and Office Equipment [Member]
Lessee Lease Description [Line Items]
Operating leases remaining lease term	13 years

Operating Leases - Schedule of

Operating Leases - Schedule of Net Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Lessee Disclosure [Abstract]
Operating lease cost	$ 27,183	$ 26,685	$ 79,961	$ 80,137
Short-term lease cost	710	401	1,425	998
Variable lease cost	7,299	6,028	21,244	17,051
Sublease income	(274)	(591)	(836)	(1,786)
Net lease cost	$ 34,918	$ 32,523	101,794	$ 96,400
Operating lease cash flows			82,976
Right-of-use assets obtained in exchange for new operating lease liabilities			$ 83,749
Weighted-average remaining lease term (years)	12 years 9 months 18 days		12 years 9 months 18 days
Weighted-average discount rate	4.92%		4.92%

Operating Leases - Schedule o_2

Operating Leases - Schedule of Information About Operating Lease Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Lessee Disclosure [Abstract]
Remainder of 2023	$ 26,798
2024	105,237
2025	99,070
2026	99,271
2027	98,302
Thereafter	730,135
Total undiscounted lease payments	1,158,813
Imputed interest	(327,095)
Total operating lease liabilities	$ 831,718	$ 819,700
Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration]	Accounts Payable and Accrued Liabilities	Accounts Payable and Accrued Liabilities

Revenues from Contracts with _3

Revenues from Contracts with Customers (Schedule of Total Revenues Broken Out by Revenues from Contracts with Customers and Other Sources of Revenues) (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Revenues:
Revenue from contracts with customers	[1]	$ 646,469	$ 682,524	$ 1,998,521	$ 2,267,643
Other sources of revenue:
Interest		505,198	304,195	1,439,532	682,384
Principal transactions		114,841	118,379	336,063	403,252
Other		(921)	(203)	(4,927)	3,060
Total revenues		1,265,587	1,104,895	3,769,189	3,356,339
Commissions [Member]
Revenues:
Revenue from contracts with customers		165,075	159,054	499,983	541,644
Investment Banking [Member]
Revenues:
Revenue from contracts with customers		146,887	221,858	525,591	747,779
Asset Management [Member]
Revenues:
Revenue from contracts with customers		333,127	300,557	968,960	973,457
Other [Member]
Revenues:
Revenue from contracts with customers	[1]	$ 1,380	$ 1,055	$ 3,987	$ 4,763

[1] Excludes revenues not derived from contracts with customers included in the Other segment.

Revenues from Contracts with _4

Revenues from Contracts with Customers (Revenues from Contracts with Customers Disaggregated by Major Business Activity and Primary Geographic Regions) (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Disaggregation Of Revenue [Line Items]
Commissions	[1]	$ 165,075	$ 159,054	$ 499,983	$ 541,644
Investment banking	[1]	146,887	221,858	525,591	747,779
Revenue from contracts with customers	[1]	646,469	682,524	1,998,521	2,267,643
Capital Raising [Member]
Disaggregation Of Revenue [Line Items]
Investment banking	[1]	49,614	55,122	189,381	200,091
Advisory [Member]
Disaggregation Of Revenue [Line Items]
Investment banking	[1]	97,273	166,736	336,210	547,688
Asset Management [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	[1]	333,127	300,557	968,960	973,457
Other [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	[1]	1,380	1,055	3,987	4,763
Global Wealth Management [Member]
Disaggregation Of Revenue [Line Items]
Commissions	[1]	112,300	108,214	332,327	360,994
Investment banking	[1]	3,895	4,498	12,118	14,701
Revenue from contracts with customers	[1]	450,602	414,231	1,317,129	1,353,664
Global Wealth Management [Member] \| Capital Raising [Member]
Disaggregation Of Revenue [Line Items]
Investment banking	[1]	3,895	4,498	12,118	14,701
Global Wealth Management [Member] \| Asset Management [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	[1]	333,088	300,540	968,863	973,396
Global Wealth Management [Member] \| Other [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	[1]	1,319	979	3,821	4,573
Institutional Group [Member]
Disaggregation Of Revenue [Line Items]
Commissions	[1]	52,775	50,840	167,656	180,650
Investment banking	[1]	142,992	217,360	513,473	733,078
Revenue from contracts with customers	[1]	195,823	268,217	681,243	913,789
Institutional Group [Member] \| Capital Raising [Member]
Disaggregation Of Revenue [Line Items]
Investment banking	[1]	45,719	50,624	177,263	185,390
Institutional Group [Member] \| Advisory [Member]
Disaggregation Of Revenue [Line Items]
Investment banking	[1]	97,273	166,736	336,210	547,688
Institutional Group [Member] \| Asset Management [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	[1]	39	17	97	61
Institutional Group [Member] \| Other [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	[1]	17		17
Other [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	[1]	44	76	149	190
Other [Member] \| Other [Member]
Disaggregation Of Revenue [Line Items]
Other	[1]	44	76	149	190
United States [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	[1]	596,433	638,020	1,816,325	2,117,628
United States [Member] \| Global Wealth Management [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	[1]	450,602	414,231	1,317,129	1,353,664
United States [Member] \| Institutional Group [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	[1]	145,787	223,713	499,047	763,774
United States [Member] \| Other [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	[1]	44	76	149	190
United Kingdom [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	[1]	31,240	29,987	99,844	101,342
United Kingdom [Member] \| Institutional Group [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	[1]	31,240	29,987	99,844	101,342
Canada [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	[1]	8,601	7,920	38,738	25,043
Canada [Member] \| Institutional Group [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	[1]	8,601	7,920	38,738	25,043
Other [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	[1]	10,195	6,597	43,614	23,630
Other [Member] \| Institutional Group [Member]
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers	[1]	$ 10,195	$ 6,597	$ 43,614	$ 23,630

[1] Excludes revenues not derived from contracts with customers included in the Other segment.

Revenues from Contracts with _5

Revenues from Contracts with Customers (Narrative) (Details) - USD ($)	9 Months Ended
	Sep. 30, 2023	Dec. 31, 2022
Revenue from Contract with Customer [Abstract]
Receivables related to contract with customers	$ 132,800,000	$ 141,200,000
Impairment related to receivables	0
Deferred Revenue	$ 21,400,000	$ 12,800,000

Interest Income and Interest _3

Interest Income and Interest Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Interest Income (Expense), Net [Abstract]
Loans held for investment, net	$ 320,715	$ 208,365	$ 928,801	$ 480,053
Investment securities	120,670	71,420	345,201	151,728
Interest-bearing cash and federal funds sold	35,560	7,745	83,280	11,721
Margin balances	15,651	12,510	45,874	28,154
Other	12,602	4,155	36,376	10,728
Total interest income	505,198	304,195	1,439,532	682,384
Bank deposits	198,197	43,371	506,847	47,899
Senior notes	12,507	11,220	37,519	33,919
Other	9,832	5,165	22,258	4,729
Total interest expense	$ 220,536	$ 59,756	$ 566,624	$ 86,547

Employee Incentive, Deferred _2

Employee Incentive, Deferred Compensation, and Retirement Plans (Details) - USD ($) $ in Thousands, shares in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized to grant			5
Stock-based compensation			$ 106,237	$ 103,281
Unvested stock awards outstanding	14.1		14.1
Unrecognized compensation expense related to non-vested options	$ 759,000		$ 759,000
Contributions to profit sharing	4,300	$ 4,300	13,200	12,200
Debentures [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	27,200	23,600	78,400	67,800
Incentive Stock Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	$ 35,200	$ 33,300	$ 102,900	$ 101,100
Restricted Stock Units, PRSUs, and Restricted Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total number of stock awards outstanding	16.2		16.2
Weighted-average period, compensation cost expected to recognized, in years			2 years 6 months
Performance-based Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards vesting period in years			5 years
Award performance period in years			4 years
Performance-based Restricted Stock Units [Member] \| One to Four Years [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of earned award vested			80%
Performance-based Restricted Stock Units [Member] \| Fifth Year [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of earned award vested			20%
SWAP Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Elective deferrals vested percentage	100%		100%
Percentage of earnings deferred into company stock units	5%		5%
Percentage of earnings deferred into company stock units, Additional elective deferral			1%
Minimum [Member] \| Deferred Compensation Plans [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards vesting period in years			1 year
Minimum [Member] \| Deferred Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards vesting period in years			1 year
Minimum [Member] \| Restricted Stock Award [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards vesting period in years			1 year
Minimum [Member] \| Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards vesting period in years			1 year
Minimum [Member] \| Performance-based Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Potential percentage of converted shares			0%
Minimum [Member] \| SWAP Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards vesting period in years			1 year
Maximum [Member] \| Deferred Compensation Plans [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards vesting period in years			8 years
Maximum [Member] \| Deferred Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards vesting period in years			10 years
Maximum [Member] \| Restricted Stock Award [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards vesting period in years			3 years
Maximum [Member] \| Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards vesting period in years			10 years
Maximum [Member] \| Performance-based Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Potential percentage of converted shares			200%
Maximum [Member] \| SWAP Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards vesting period in years			10 years

Off-Balance Sheet Credit Risk (

Off-Balance Sheet Credit Risk (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2023	Dec. 31, 2022
Fair Value Off Balance Sheet Risks Disclosure Information [Line Items]
General settlement period of securities transactions	2 days
Fair value of securities accepted as collateral permitted to sell or repledge	$ 1,700	$ 1,800
Fair value of collateral securities sold or repledged	409	212
Outstanding commitments to originate loans	214.3	164.6
Letters of credit outstanding	33.6	22.9
Unfunded Commitment [Member]
Fair Value Off Balance Sheet Risks Disclosure Information [Line Items]
Unused lines of credit to commercial and consumer borrowers	34	36.2
Unused Lines Of Credit [Member]
Fair Value Off Balance Sheet Risks Disclosure Information [Line Items]
Unused lines of credit to commercial and consumer borrowers	$ 6,000	$ 6,100
Standby Letters of Credit [Member] \| Maximum [Member]
Fair Value Off Balance Sheet Risks Disclosure Information [Line Items]
Letters of credit, expiration period	1 year

Segment Reporting (Narrative) (

Segment Reporting (Narrative) (Details)	9 Months Ended
Segment Reporting (Narrative) (Details)	Sep. 30, 2023 Segment
Segment Reporting Information [Line Items]
Number of business segments	3
Global Wealth Management [Member]
Segment Reporting Information [Line Items]
Number of businesses within operating segment	2

Segment Reporting (Schedule Of

Segment Reporting (Schedule Of Operating Information, Segment) (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Segment Reporting Information [Line Items]
Net revenues		$ 1,045,051	$ 1,045,139	$ 3,202,565	$ 3,269,792
Income/(loss) before income taxes		109,429	205,769	500,697	651,419
Global Wealth Management [Member]
Segment Reporting Information [Line Items]
Net revenues	[1]	768,558	701,820	2,283,934	2,081,525
Income/(loss) before income taxes		298,449	279,935	914,462	750,500
Institutional Group [Member]
Segment Reporting Information [Line Items]
Net revenues	[1]	256,888	339,408	867,025	1,182,135
Income/(loss) before income taxes		(27,804)	40,000	(5,671)	209,620
Other Segments [Member]
Segment Reporting Information [Line Items]
Net revenues	[1]	19,605	3,911	51,606	6,132
Income/(loss) before income taxes		$ (161,216)	$ (114,166)	$ (408,094)	$ (308,701)

[1] No individual client accounted for more than 10 percent of total net revenues for the three and nine months ended September 30, 2023 and 2022.

Segment Reporting (Schedule O_2

Segment Reporting (Schedule Of Operating Information, Segment) (Parenthetical) (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Segment Reporting [Abstract]
Net revenues accounted for by individual client, maximum percentage	10%	10%	10%	10%

Segment Reporting (Schedule O_3

Segment Reporting (Schedule Of Information Of Total Assets On Segment Basis) (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
Total assets	$ 37,877,577	$ 37,196,124
Global Wealth Management [Member]
Segment Reporting Information [Line Items]
Total assets	32,601,555	32,449,466
Institutional Group [Member]
Segment Reporting Information [Line Items]
Total assets	4,779,831	4,285,212
Other Segments [Member]
Segment Reporting Information [Line Items]
Total assets	$ 496,191	$ 461,446

Segment Reporting (Schedule O_4

Segment Reporting (Schedule Of Net Revenues Earned On Major Geographical Areas) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Segment Reporting Information [Line Items]
Total net revenues	$ 1,045,051	$ 1,045,139	$ 3,202,565	$ 3,269,792
United States [Member]
Segment Reporting Information [Line Items]
Total net revenues	979,282	987,770	2,982,274	3,085,241
United Kingdom [Member]
Segment Reporting Information [Line Items]
Total net revenues	45,095	40,980	131,855	134,836
Canada [Member]
Segment Reporting Information [Line Items]
Total net revenues	8,364	7,798	37,195	21,182
Other [Member]
Segment Reporting Information [Line Items]
Total net revenues	$ 12,310	$ 8,591	$ 51,241	$ 28,533

Earnings Per Share ("EPS") (Com

Earnings Per Share ("EPS") (Computation Of Basic And Diluted Earnings Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Earnings Per Share [Abstract]
Net income		$ 68,161	$ 151,169	$ 360,052	$ 485,534
Preferred dividends		9,321	9,320	27,961	27,961
Net income available to common shareholders		$ 58,840	$ 141,849	$ 332,091	$ 457,573
Average shares used in basic computation		106,068	108,767	107,580	109,017
Dilutive effect of stock options and units	[1]	7,127	8,451	6,590	8,632
Average shares used in diluted computation		113,195	117,218	114,170	117,649
Basic		$ 0.55	$ 1.3	$ 3.09	$ 4.2
Diluted		$ 0.52	$ 1.21	$ 2.91	$ 3.89

[1] Diluted earnings per share is computed on the basis of the weighted-average number of shares of common stock plus the effect of dilutive potential common shares outstanding during the period using the treasury stock method. Diluted earnings per share include units.

Earnings Per Share ("EPS") (Det

Earnings Per Share ("EPS") (Details) - $ / shares	3 Months Ended		9 Months Ended
Earnings Per Share ("EPS") (Details) - $ / shares	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Earnings Per Share [Abstract]
Cash dividends declared per common share	$ 0.36	$ 0.3	$ 1.08	$ 0.9

Shareholders' Equity (Narrative

Shareholders' Equity (Narrative) (Details) - USD ($) $ / shares in Units, shares in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Business Acquisition Equity Interests Issued Or Issuable [Line Items]
Number of shares authorized to be repurchased	4.2		4.2
Purchase of treasury stock	$ 118,800,000	$ 0	$ 300,200,000	$ 30,700,000
Treasury stock acquired, Shares,	1.9		4.8	0.5
Treasury Stock Acquired, Average Cost Per Share	$ 63		$ 62.14	$ 60.68
Preferred stock, par value	$ 1	$ 1	$ 1	$ 1	$ 1
Business Bancshares, Inc. [Member]
Business Acquisition Equity Interests Issued Or Issuable [Line Items]
Common stock reissued			2.6

Variable Interest Entities (Sch

Variable Interest Entities (Schedule of Aggregate Assets, Liabilities, and Our Exposure to Loss from those VIEs) (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2023	Dec. 31, 2022
Variable Interest Entity [Line Items]
Assets	$ 37,877,577	$ 37,196,124
Total liabilities	32,634,983	31,867,653
Variable Interest Entity Not Primary Beneficiary [Member] \| Debt and equity [member]
Variable Interest Entity [Line Items]
Assets	737,516	791,111
Total liabilities	275,110	297,555
Gain (Loss) on Price Risk Derivatives, Net	27,627	14,776
Variable Interest Entity Not Primary Beneficiary [Member] \| Miscellaneous Investments [Member]
Variable Interest Entity [Line Items]
Assets	401,245	388,408
Total liabilities	274,342	296,375
Gain (Loss) on Price Risk Derivatives, Net	27,627	14,776
Variable Interest Entity Not Primary Beneficiary [Member] \| Partnership Interest [Member]
Variable Interest Entity [Line Items]
Assets	336,271	402,703
Total liabilities	768	1,180
Gain (Loss) on Price Risk Derivatives, Net	$ 0	$ 0

Subsequent Events (Details)

Subsequent Events (Details)	9 Months Ended
Subsequent Events (Details)	Sep. 30, 2023 Event
Subsequent Events [Abstract]
Number of types of subsequent events	2