NewMarket (NEU) 10-K15 Feb 232022 FY Annual reportFinancial data

Company Profile

Document And Entity Information

Document And Entity Information - USD ($)	12 Months Ended
Document And Entity Information - USD ($)	Dec. 31, 2022	Jan. 31, 2023	Jun. 30, 2022
Cover [Abstract]
Document Type	10-K
Document Fiscal Period Focus	FY
Document Annual Report	true
Document Period End Date	Dec. 31, 2022
Document Transition Report	false
Amendment Flag	false
Document Fiscal Year Focus	2022
Current Fiscal Year End Date	--12-31
Entity File Number	1-32190
Entity Registrant Name	NEWMARKET CORPORATION
Entity Central Index Key	0001282637
Entity Incorporation, State or Country Code	VA
Entity Tax Identification Number	20-0812170
Entity Address, Address Line One	330 South Fourth Street
Entity Address, City or Town	Richmond
Entity Address, State or Province	VA
Entity Address, Postal Zip Code	23219-4350
City Area Code	804
Local Phone Number	788-5000
Title of 12(b) Security	Common Stock, with no par value
Trading Symbol	NEU
Security Exchange Name	NYSE
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
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
ICFR Auditor Attestation Flag	true
Entity Shell Company	false
Entity Public Float			$ 2,142,263,376
Entity Common Stock, Shares Outstanding		9,685,851
Documents Incorporated by Reference [Text Block]	DOCUMENTS INCORPORATED BY REFERENCE Portions of NewMarket Corporation’s definitive Proxy Statement for its 2023 Annual Meeting of Shareholders to be filed with the Securities and Exchange Commission pursuant to Regulation 14A under the Securities Exchange Act of 1934 are incorporated by reference into Part III of this Annual Report on Form 10-K.

Audit Information

Audit Information	12 Months Ended
Audit Information	Dec. 31, 2022
Audit Information [Abstract]
Auditor Name	PricewaterhouseCoopers LLP
Auditor Firm ID	238
Auditor Location	Richmond, Virginia

Consolidated Statements Of Inco

Consolidated Statements Of Income - USD ($) $ in Thousands	12 Months Ended
Consolidated Statements Of Income - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Statement [Abstract]
Net sales	$ 2,764,799	$ 2,356,110	$ 2,010,931
Cost of goods sold	2,124,302	1,808,403	1,415,899
Gross profit	640,497	547,707	595,032
Selling, general, and administrative expenses	145,106	145,973	142,863
Research, development, and testing expenses	140,252	143,952	140,367
Operating profit	355,139	257,782	311,802
Interest and financing expenses, net	35,202	34,218	26,328
Loss on early extinguishment of debt	(7,545)	0	0
Other income (expense), net	35,342	23,987	45,813
Income before income tax expense	347,734	247,551	331,287
Income tax expense	68,196	56,643	60,719
Net income	$ 279,538	$ 190,908	$ 270,568
Earnings Per Share, Diluted	$ 27.77	$ 17.71	$ 24.64
Earnings Per Share, Basic	$ 27.77	$ 17.71	$ 24.64

Consolidated Statements Of Comp

Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Statement of Comprehensive Income [Abstract]
Net income	$ 279,538	$ 190,908	$ 270,568
Pension plans and other postretirement benefits:
Prior service credit (cost) arising during the period, net of income tax expense (benefit) of $(21) in 2022, $8 in 2021 and $(16) in 2020	(65)	27	(49)
Amortization of prior service cost (credit) included in net periodic benefit cost (income), net of income tax expense (benefit) of $(627) in 2022, $(628) in 2021 and $(680) in 2020	(1,993)	(1,977)	(2,120)
Actuarial net gain (loss) arising during the period, net of income tax expense (benefit) of $17,552 in 2022, $29,035 in 2021 and $(5,852) in 2020	53,084	89,167	(25,441)
Amortization of actuarial net loss (gain) included in net periodic benefit cost (income), net of income tax expense (benefit) of $655 in 2022, $2,263 in 2021 and $1,460 in 2020	2,014	7,076	4,634
Total pension plans and other postretirement benefits	53,040	94,293	(22,976)
Foreign currency translation adjustments, net of income tax expense (benefit) of $468 in 2022, $(380) in 2021 and $(636) in 2020	(42,808)	(3,356)	12,560
Other comprehensive income (loss)	10,232	90,937	(10,416)
Comprehensive income	$ 289,770	$ 281,845	$ 260,152

Consolidated Statements Of Co_2

Consolidated Statements Of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Statement of Comprehensive Income [Abstract]
Prior service credit (cost) arising during the period, income tax expense (benefit)	$ (21)	$ 8	$ (16)
Amortization of prior service cost (credit) included in net periodic benefit cost (income), income tax expense (benefit)	(627)	(628)	(680)
Actuarial net gain (loss) arising during the period, income tax expense (benefit)	17,552	29,035	(5,852)
Amortization of actuarial net loss (gain) included in net periodic benefit cost (income), income tax expense (benefit)	655	2,263	1,460
Foreign currency translation adjustments, income tax expense (benefit)	$ 468	$ (380)	$ (636)

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 68,712	$ 83,304
Marketable securities	0	375,918
Trade and other accounts receivable, net	453,692	391,779
Inventories	631,383	498,539
Prepaid expenses and other current assets	38,338	38,633
Total current assets	1,192,125	1,388,173
Property, plant, and equipment, net	659,998	676,770
Intangibles (net of amortization) and goodwill	126,069	127,752
Prepaid pension cost	302,584	242,604
Operating lease right-of-use assets	62,417	68,402
Deferred charges and other assets	63,625	54,735
Total assets	2,406,818	2,558,436
Current liabilities:
Accounts payable	273,289	246,097
Accrued expenses	89,508	85,103
Dividends payable	17,850	16,648
Income taxes payable	16,109	4,442
Operating lease liabilities	15,569	15,709
Current portion of long-term debt	0	349,434
Other current liabilities	11,562	7,654
Total current liabilities	423,887	725,087
Long-term Debt	1,003,737	789,853
Operating lease liabilities - noncurrent	46,968	52,591
Other noncurrent liabilities	169,819	228,776
Total liabilities	1,644,411	1,796,307
Commitments and contingencies (Note 21)
Shareholders’ equity:
Common stock and paid-in capital (with no par value; authorized shares - 80,000,000; issued and outstanding - 9,702,147 at December 31, 2022 and 10,362,722 at December 31, 2021)	0	0
Accumulated other comprehensive loss	(71,995)	(82,227)
Retained earnings	834,402	844,356
Total shareholders' equity	762,407	762,129
Total liabilities and shareholders' equity	$ 2,406,818	$ 2,558,436

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - $ / shares	Dec. 31, 2022	Dec. 31, 2021
Statement of Financial Position [Abstract]
Common Stock, No Par Value	$ 0	$ 0
Common Stock, Shares Authorized	80,000,000	80,000,000
Common Stock, Shares, Issued	9,702,147	10,362,722
Common Stock, Shares, Outstanding	9,702,147	10,362,722

Consolidated Statements Of Shar

Consolidated Statements Of Shareholders' Equity - USD ($) $ in Thousands	Total	Common Stock and Paid-in Capital [Member]	Accumulated Other Comprehensive Loss [Member]	Retained Earnings [Member]
Balance (in shares) at Dec. 31, 2019		11,188,549
Balance at Dec. 31, 2019	$ 683,098	$ 1,965	$ (162,748)	$ 843,881
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	270,568			270,568
Other comprehensive income (loss)	(10,416)		(10,416)
Cash dividends	(83,417)			(83,417)
Repurchases of common stock (in shares)		(270,963)
Repurchases of common stock	(101,434)	$ (2,630)		(98,804)
Tax withholdings related to stock-based compensation (in shares)		(1,547)
Tax withholdings related to stock-based compensation	(641)	$ (641)
Restricted Stock Award, Forfeitures, Dividends				43
Stock-based compensation (in shares)		5,338
Stock-based compensation	2,066	$ 2,023
Balance (in shares) at Dec. 31, 2020		10,921,377
Balance at Dec. 31, 2020	759,824	$ 717	(173,164)	932,271
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	190,908			190,908
Other comprehensive income (loss)	90,937		90,937
Cash dividends	(85,910)			(85,910)
Repurchases of common stock (in shares)		(566,671)
Repurchases of common stock	(196,220)	$ (3,305)		(192,915)
Restricted Stock Award, Forfeitures, Dividends				2
Stock-based compensation (in shares)		8,016
Stock-based compensation	$ 2,590	$ 2,588
Balance (in shares) at Dec. 31, 2021	10,362,722	10,362,722
Balance at Dec. 31, 2021	$ 762,129	$ 0	(82,227)	844,356
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	279,538			279,538
Other comprehensive income (loss)	10,232		10,232
Cash dividends	(84,263)			(84,263)
Repurchases of common stock (in shares)		(668,553)
Repurchases of common stock	(207,470)	$ (2,205)		(205,265)
Restricted Stock Award, Forfeitures, Dividends				36
Stock-based compensation (in shares)		7,978
Stock-based compensation	$ 2,241	$ 2,205
Balance (in shares) at Dec. 31, 2022	9,702,147	9,702,147
Balance at Dec. 31, 2022	$ 762,407	$ 0	$ (71,995)	$ 834,402

Consolidated Statements Of Sh_2

Consolidated Statements Of Shareholders' Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Statement of Stockholders' Equity [Abstract]
Cash dividends (in dollars per share)	$ 8.40	$ 8	$ 7.60

Consolidated Statements Of Cash

Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Statement of Cash Flows [Abstract]
Cash and cash equivalents at beginning of year	$ 83,304	$ 125,172	$ 144,397
Cash flows from operating activities:
Net income	279,538	190,908	270,568
Adjustments to reconcile net income to cash flows from operating activities:
Depreciation and amortization	82,285	84,320	84,002
Deferred income tax (benefit) expense	(42,645)	1,978	7,554
Loss on early extinguishment of debt	7,545	0	0
Gain on sale of land	0	0	(16,483)
Change in assets and liabilities:
Trade and other accounts receivable, net	(73,089)	(53,990)	2,591
Inventories	(166,558)	(96,199)	(33,111)
Prepaid expenses and other current assets	2,159	(2,691)	(6,138)
Accounts payable and accrued expenses	35,532	60,407	7,077
Operating lease liabilities	(18,275)	(18,204)	(17,801)
Other current liabilities	4,009	(6,240)	228
Income taxes payable	11,586	562	(6,935)
Loss on marketable securities	2,977	7,440	0
Cash pension and postretirement contributions	(9,748)	(10,342)	(10,655)
Other, net	(6,696)	7,387	3,257
Cash provided from (used in) operating activities	108,620	165,336	284,154
Cash flows from investing activities:
Capital expenditures	(56,169)	(78,934)	(93,316)
Purchases of marketable securities	(787)	(393,434)	0
Proceeds from sales and maturities of marketable securities	372,846	10,957	0
Proceeds from sale of land	0	0	20,000
Other, net	0	0	(927)
Cash provided from (used in) investing activities	315,890	(461,411)	(74,243)
Cash flows from financing activities:
Redemption of 4.10% senior notes	(350,000)	0	0
Net borrowings (repayments) under revolving credit facility	213,000	148,000	(44,678)
Issuance of 2.70% senior notes	0	395,052	0
Dividends paid	(84,263)	(85,910)	(83,417)
Repurchases of common stock	(207,470)	(196,220)	(101,434)
Cash costs of 4.10% senior notes redemption	(7,099)	0	0
Debt issuance costs	0	(3,897)	(1,349)
Other, net	(3,525)	(1,892)	(585)
Cash provided from (used in) financing activities	(439,357)	255,133	(231,463)
Effect of foreign exchange on cash and cash equivalents	255	(926)	2,327
(Decrease) increase in cash and cash equivalents	(14,592)	(41,868)	(19,225)
Cash and cash equivalents at end of year	$ 68,712	$ 83,304	$ 125,172

Consolidated Statement of Cash

Consolidated Statement of Cash Flows (Parenthetical)	Dec. 31, 2022	Mar. 15, 2022	Dec. 31, 2021
4.10% Senior Notes [Member]
Senior notes, interest rate		4.10%	4.10%
2.7% Senior Notes [Member]
Senior notes, interest rate	2.70%		2.70%

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
Summary of Significant Accounting Policies	Dec. 31, 2022
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	1. Summary of Significant Accounting Policies Consolidation - Our consolidated financial statements include the accounts of NewMarket Corporation and its subsidiaries. All intercompany transactions are eliminated upon consolidation. References to "we," "us," "our," the "company," and "NewMarket" are to NewMarket Corporation and its consolidated subsidiaries, unless the context indicates otherwise. NewMarket is the parent company of separate operating companies, each managing its own assets and liabilities. Those companies are Afton, which focuses on petroleum additive products; Ethyl, representing certain contracted manufacturing and related services, as well as the antiknock compounds business; and NewMarket Development, which manages the real property and improvements that we own in Virginia. NewMarket is also the parent company of NewMarket Services, which provides various administrative services to NewMarket, Afton, Ethyl, and NewMarket Development. Certain reclassifications have been made to the accompanying consolidated financial statements and/or the related notes to conform to the current presentation. Foreign Currency Translation - We translate the balance sheets of our foreign subsidiaries into U.S. Dollars based on the current exchange rate at the end of each period. We translate the statements of income using the weighted-average exchange rates for the period. NewMarket includes translation adjustments in the Consolidated Balance Sheets as part of accumulated other comprehensive loss and transaction adjustments in the Consolidated Statements of Income as part of cost of goods sold. Foreign currency transaction adjustments resulted in a net loss of $4 million in 2022, $6 million in 2021, and $3 million in 2020. Revenue Recognition - We recognize revenue when control of the product is transferred to our customer and for an amount that reflects the consideration we expect to collect from the customer. Net sales (revenues) are reported at the gross amount billed, including amounts related to shipping that are charged to the customer. Provisions for rebates to customers are recorded in the same period that the related sales are recorded. Freight costs incurred on the delivery of products are included in the Consolidated Statements of Income in cost of goods sold. Our standard terms of delivery are included in our contracts, sales order confirmation documents, and invoices. Taxes assessed by a governmental authority concurrent with sales to our customers, including sales, use, value-added, and revenue-related excise taxes, are not included as net sales, but are reflected in accrued expenses until remitted to the appropriate governmental authority. Cash and Cash Equivalents - Our cash equivalents consist of government obligations and commercial paper with original maturities of 90 days or less. Throughout the year, we have cash balances in excess of federally insured amounts on deposit with various financial institutions. We state cash and cash equivalents at cost, which approximates fair value. Marketable Securities - Our trading and equity securities are recorded at estimated fair value. Unrealized gains and losses on trading and equity securities are included in net income. Accounts Receivable - We record our accounts receivable at outstanding principal adjusted for allowances for credit losses. The allowance for credit losses represents probable losses to be incurred if our customers do not make required payments. We determine the adequacy of the allowance by periodically evaluating each customer’s receivable balance, considering their financial condition and credit history, and considering current economic conditions. The allowance for credit losses was not material at December 31, 2022 or December 31, 2021. Inventories - NewMarket values its inventories at the lower of cost or net realizable value. In the United States, petroleum additives inventory cost is determined on the last-in, first-out (LIFO) basis. For all other inventory, we determine cost using a weighted-average method. Inventory cost includes raw materials, direct labor, and manufacturing overhead. Property, Plant, and Equipment - We state property, plant, and equipment at cost less accumulated depreciation and compute depreciation by the straight-line method based on the estimated useful lives of the assets. We capitalize expenditures for significant improvements that extend the useful life of the related property. We expense repairs and maintenance, including plant turnaround costs, as incurred. When property is sold or retired, we remove the cost and accumulated depreciation from the accounts and any related gain or loss is included in earnings. Intangibles (Net of Amortization) and Goodwill - Identifiable intangibles include the cost of acquired contracts, formulas and technology, trademarks and trade names, and customer bases. We assign a value to identifiable intangibles based on independent third-party appraisals and management's assessment at the time of acquisition. NewMarket amortizes the cost of the customer bases by an accelerated method and the cost of the remaining identifiable intangibles by the straight-line method over the estimated economic life of the intangible. Goodwill arises from the excess of cost over the net assets of businesses acquired. Goodwill represents the residual purchase price after allocation to all identifiable net assets. We test goodwill for impairment each year, as well as whenever a significant event or circumstance occurs which could reduce the fair value of the reporting unit to which the goodwill applies below the carrying amount of the reporting unit. Impairment of Long-Lived Assets - When significant events or circumstances occur that might impair the value of long-lived assets, we evaluate recoverability of the recorded cost of these assets. Assets are considered to be impaired if their carrying amount is not recoverable from the estimated undiscounted future cash flows associated with the assets. If we determine an asset is impaired and its recorded cost is higher than estimated fair market value based on the estimated present value of future cash flows, we adjust the asset to estimated fair market value. Environmental Costs - NewMarket capitalizes environmental compliance costs if they extend the useful life of the related property or prevent future contamination. Environmental compliance costs also include maintenance and operation of pollution prevention and control facilities. We expense these compliance costs in cost of goods sold as incurred. Accrued environmental remediation and monitoring costs relate to an existing condition caused by past operations. NewMarket accrues these costs in current operations within cost of goods sold in the Consolidated Statements of Income when it is probable that we have incurred a liability and the amount can be reasonably estimated. These estimates are based on an assessment of the site, available clean-up methods, and prior experience in handling remediation. When we can reliably determine the amount and timing of future cash flows, we discount these liabilities, incorporating an inflation factor. Legal Costs - We expense legal costs in the period incurred. Employee Savings Plan - Most of our full-time salaried and hourly employees may participate in defined contribution savings plans. Employees who are covered by collective bargaining agreements may also participate in a savings plan according to the terms of their bargaining agreements. Employees, as well as NewMarket, contribute to the plans. We made contributions of $7 million in each of 2022, 2021, and 2020 related to these plans. Research, Development, and Testing Expenses - NewMarket expenses all research, development, and testing costs as incurred. R&D costs include personnel-related costs, as well as internal and external testing of our products. Income Taxes - We recognize deferred income taxes for temporary differences between the financial reporting basis and the income tax basis of assets and liabilities. We also adjust for changes in tax rates and laws at the time the changes are enacted. A valuation allowance is recorded when it is more likely than not that a deferred tax asset will not be realized. We typically remove a tax impact from accumulated other comprehensive loss when the underlying circumstance which gave rise to the tax impact no longer exists. We recognize accrued interest and penalties associated with uncertain tax positions as part of income tax expense on our Consolidated Statements of Income. Leases - We determine if an arrangement includes a lease at the inception of the agreement. The right-of-use asset and lease liability are determined at the lease commencement date and are based on the present value of estimated lease payments. Our lease agreements contain both fixed and variable lease payments. In some cases, variable lease payments are based on a rate or an index. Fixed lease payments, as well as variable lease payments which are based on a rate or index, are included in the determination of the right-of-use asset and lease liability at lease inception. Variable lease payments that are not based on a rate or index are expensed when incurred. The present value of estimated lease payments is determined utilizing the rate implicit in the lease agreement, if that rate can be determined. If the implicit rate cannot be determined, the present value of estimated lease payments is determined utilizing our incremental borrowing rate. The incremental borrowing rate is determined at the lease commencement date and is developed utilizing a readily available market interest rate curve adjusted for our credit quality. Some of our leases include an option to renew that can extend the lease term. For those leases which are reasonably certain to be renewed, we include the renewal in the lease term. We do not recognize leases with terms of 12 months or less on the balance sheet for any lease class, except the railcar lease class. For the short-term leases not recorded on the balance sheet, the lease payments are recognized in the Consolidated Statements of Income on a straight-line basis over the lease term. We account for the lease and nonlease components as a single lease component in determining the right-of-use assets and lease liabilities for all lease classes. Derivative Financial Instruments and Hedging Activities - We are exposed to certain risks arising from both our business operations and economic conditions. We manage our exposures to a wide variety of business and operational risks through management of our core business activities. We manage certain economic risks, including interest rate, liquidity, and credit risk primarily by managing the amount, sources, and duration of our debt funding, as well as through the use of derivative financial instruments. We sometimes enter into interest rate swaps to manage our exposure to interest rate movements. In addition, our foreign operations expose us to fluctuations of foreign exchange rates. These fluctuations may impact our results of operations, financial position, and cash flows. To manage this exposure, we sometimes enter into foreign currency forward contracts to minimize currency exposure due to cash flows from foreign operations. We record all derivatives on the balance sheet at fair value. The accounting for changes in the fair value of derivatives depends on the intended use of the derivative, whether we have elected to designate a derivative in a hedging relationship and apply hedge accounting, and whether the hedging relationship has satisfied the criteria necessary to apply hedge accounting. We may enter into derivative contracts that are intended to economically hedge certain of our risks, even though hedge accounting does not apply, or we elect not to apply hedge accounting. We do not enter into derivative instruments for speculative purposes. We had no derivative financial instruments outstanding at December 31, 2022 or December 31, 2021. Stock-based Compensation - We calculate the fair value of restricted stock and restricted stock units based on the closing price of our common stock on the date of grant. If award recipients are entitled to receive dividends during the vesting period, we make no adjustment to the fair value of the award for dividends. If the award does not entitle recipients to dividends during the vesting period, we reduce the grant-date price of our common stock by the present value of the dividends expected to be paid on the underlying shares during the vesting period, discounted at the risk-free interest rate. We recognize stock-based compensation expense for the number of awards expected to vest on a straight-line basis over the requisite service period. Estimates and Risks Due to Concentration of Business - The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from those estimates. In addition, our financial results can be influenced by certain risk factors. Some of our significant concentrations of risk include the following: • reliance on a small number of significant customers; • customers concentrated in the fuel and lubricant industries; and • production of several of our products solely at one facility.

Net Sales

Net Sales	12 Months Ended
Net Sales	Dec. 31, 2022
Revenue from Contract with Customer [Abstract]
Revenue from Contract with Customer [Text Block]	Net Sales Our revenues are primarily derived from the manufacture and sale of petroleum additives products. We sell petroleum additives products across the world including to customers located in our North America, Latin America, Asia Pacific, and EMEAI regions. Our customers primarily consist of global, national, and independent oil companies. While some of our customers have payment terms beyond 30 days, we do not provide extended payment terms of a year or more, nor do our contracts include a financing component. Our allowance for credit losses is immaterial, as are any bad debts we incur. In limited cases, we collect funds in advance of shipping product to our customers and recognizing the related revenue. These prepayments from customers are recorded as a contract liability to our customer until we recognize the revenue. Prepayments from our customers totaled $1 million at both December 31, 2022 and December 31, 2021. Revenue recognized from funds collected in advance from customers in an earlier period was $1 million in 2022, $2 million in 2021, and $1 million in 2020. We recognize revenue when control of the product is transferred to our customer and for an amount that reflects the consideration we expect to collect from the customer. Control is generally transferred to the customer when title transfers (which may include physical possession by the customer), we have a right to payment from the customer, the customer has accepted the product, and the customer has assumed the risks and rewards of ownership. We have supplier managed inventory arrangements with some of our customers to facilitate on-demand product availability. In some cases, the inventory resides at a customer site, although title has not transferred, we are not entitled to payment, and we have not invoiced for the product. We have evaluated the contract terms under these arrangements and have determined that control transfers when the customer uses the product, at which time revenue is recognized. Our contracts generally include one performance obligation, which is providing petroleum additives products. The performance obligation is satisfied at a point in time when products are shipped, delivered, or consumed by the customer, depending on the underlying contracts. Taxes assessed by a governmental authority which are concurrent with sales to our customers, including sales, use, value-added, and revenue-related excise taxes, are collected by us from the customer and are not included in net sales, but are reflected in accrued expenses until remitted to the appropriate governmental authority. When we are responsible for shipping and handling costs after title has transferred, we account for those as fulfillment costs and include them in cost of goods sold. Some of our contracts include variable consideration in the form of rebates or business development funds. We record rebates at the point of sale as contra-revenue when we can reasonably estimate the amount of the rebate. The estimates are based on our best judgment at the time of sale, which includes anticipated as well as historical performance. Depending upon the specific terms of a business development fund, amounts are accrued as contra-revenue at the point of sale or are expensed when costs are incurred by us. We regularly review both rebates and business development funds and make adjustments when necessary, recognizing the full amount of any adjustment in the period identified. We recognized an increase to net sales of $2 million for 2022, $4 million for 2021, and $2 million for 2020 related to adjustments to rebates or business development funds which were recognized in revenue in a prior period. At December 31, 2022, accrued rebates were $28 million and accrued business development funds were $0.4 million. At December 31, 2021, accrued rebates were $26 million and accrued business development funds were $2 million. The following table provides information on our net sales by geographic area. Information on net sales by segment is in Note 4. Years Ended December 31, (in thousands) 2022 2021 2020 Net sales United States $ 974,963 $ 780,278 $ 650,654 China 181,283 255,219 213,788 Europe, Middle East, Africa, India 807,782 708,675 651,645 Asia Pacific, except China 435,684 325,621 279,847 Other foreign 365,087 286,317 214,997 Net sales $ 2,764,799 $ 2,356,110 $ 2,010,931

Earnings Per Share

Earnings Per Share	12 Months Ended
Earnings Per Share	Dec. 31, 2022
Earnings Per Share [Abstract]
Earnings Per Share	. Earnings Per Share We had 33,055 shares in 2022, 26,572 shares in 2021, and 19,951 shares in 2020 of nonvested restricted stock that were excluded from the calculation of diluted earnings per share, as their effect on earnings per share would be anti-dilutive. The nonvested restricted stock is considered a participating security since the restricted stock contains nonforfeitable rights to dividends. As such, we use the two-class method to compute basic and diluted earnings per share for all periods presented since this method yields the most dilutive result. The following table illustrates the earnings allocation method utilized in the calculation of basic and diluted earnings per share. Years Ended December 31, (in thousands, except per-share amounts) 2022 2021 2020 Earnings per share numerator: Net income attributable to common shareholders before allocation of earnings to participating securities $ 279,538 $ 190,908 $ 270,568 Earnings allocated to participating securities (876) (462) (448) Net income attributable to common shareholders after allocation of earnings to participating securities $ 278,662 $ 190,446 $ 270,120 Earnings per share denominator: Weighted-average number of shares of common stock outstanding - basic and diluted 10,035 10,756 10,961 Earnings per share - basic and diluted $ 27.77 $ 17.71 $ 24.64

Segment and Geographic Area Inf

Segment and Geographic Area Information	12 Months Ended
Segment and Geographic Area Information	Dec. 31, 2022
Segment Reporting [Abstract]
Segment and Geographic Area Information	Segment and Geographic Area Information Segment Information - The tables below show our consolidated segment results. The “All other” category includes the operations of the antiknock compounds business, as well as certain contracted manufacturing and related services associated with Ethyl. The segment accounting policies are the same as those described in Note 1. We evaluate the performance of the petroleum additives business based on segment operating profit. NewMarket Services departmental and other expenses are billed to Afton and Ethyl based on the services provided under the holding company structure. Depreciation on segment property, plant, and equipment, as well as amortization of segment intangible assets and lease right-of-use assets are included in segment operating profit. No transfers occurred between the petroleum additives segment and the “All other” category during the periods presented. The table below reports net sales and operating profit by segment, as well as a reconciliation to income before income tax expense, for the last three years. Years Ended December 31, (in thousands) 2022 2021 2020 Net sales Petroleum additives Lubricant additives $ 2,342,622 $ 1,998,772 $ 1,686,649 Fuel additives 411,688 345,170 314,918 Total 2,754,310 2,343,942 2,001,567 All other 10,489 12,168 9,364 Net sales (a) $ 2,764,799 $ 2,356,110 $ 2,010,931 Segment operating profit Petroleum additives $ 378,244 $ 281,055 $ 333,241 All other (1,782) (1,525) (100) Segment operating profit 376,462 279,530 333,141 Corporate, general, and administrative expenses (21,579) (21,214) (21,744) Interest and financing expenses, net (35,202) (34,218) (26,328) Loss on early extinguishment of debt (7,545) 0 0 Other income (expense), net 35,598 23,453 46,218 Income before income tax expense $ 347,734 $ 247,551 $ 331,287 (a) No single customer accounted for 10% or more of our total net sales in 2022, 2021, or 2020. The following tables show asset information by segment and the reconciliation to consolidated assets. Segment assets consist of accounts receivable, inventory, and long-lived assets. Long-lived assets included in the petroleum additives segment amounts in the table below include property, plant, and equipment (net of depreciation), intangibles (net of amortization) and goodwill, and lease right-of-use assets. The additions to long-lived assets include property, plant, and equipment and lease right-of-use assets. December 31, (in thousands) 2022 2021 Segment assets Petroleum additives $ 1,929,340 $ 1,752,467 All other 18,738 12,602 1,948,078 1,765,069 Cash and cash equivalents 68,712 83,304 Marketable securities 0 375,918 Non-segment other accounts receivable 2,220 11,884 Prepaid expenses and other current assets 38,338 38,633 Non-segment property, plant, and equipment, net 32,191 30,352 Prepaid pension cost 302,584 242,604 Non-segment lease right-of-use assets 26 105 Non-segment deferred charges and other assets 14,669 10,567 Total assets $ 2,406,818 $ 2,558,436 Years Ended December 31, (in thousands) 2022 2021 2020 Additions to long-lived assets Petroleum additives $ 64,456 $ 134,873 $ 109,536 All other 147 22 3 Corporate 3,983 686 2,453 Total additions to long-lived assets $ 68,586 $ 135,581 $ 111,992 Depreciation and amortization Petroleum additives $ 78,744 $ 80,495 $ 80,811 All other 51 51 52 Corporate 3,490 3,774 3,139 Total depreciation and amortization $ 82,285 $ 84,320 $ 84,002 Geographic Area Information - We have operations in the North America, Latin America, Asia Pacific, and EMEAI regions. Our foreign customers consist primarily of global, national, and independent oil companies. The tables below report net sales, total assets, and long-lived assets by geographic area, as well as by country for those countries with significant net sales or long-lived assets. Since our foreign operations are significant to our overall business, we are also presenting net sales in the table below by the major regions in which we operate. NewMarket assigns net sales to geographic areas based on the location to which the product was shipped to a third party. Long-lived assets in the table below include property, plant, and equipment, net of depreciation, and lease right-of-use assets. Years Ended December 31, (in thousands) 2022 2021 2020 Net sales United States $ 974,963 $ 780,278 $ 650,654 China 181,283 255,219 213,788 Europe, Middle East, Africa, India 807,782 708,675 651,645 Asia Pacific, except China 435,684 325,621 279,847 Other foreign 365,087 286,317 214,997 Net sales $ 2,764,799 $ 2,356,110 $ 2,010,931 December 31, (in thousands) 2022 2021 Total assets United States $ 990,037 $ 1,255,464 Foreign 1,416,781 1,302,972 Total assets $ 2,406,818 $ 2,558,436 Long-lived assets United States $ 363,211 $ 360,204 Singapore 247,218 263,614 Other foreign 148,879 160,944 Total long-lived assets $ 759,308 $ 784,762

Supplemental Cash Flow Informat

Supplemental Cash Flow Information	12 Months Ended
Supplemental Cash Flow Information	Dec. 31, 2022
Supplemental Cash Flow Information [Abstract]
Supplemental Cash Flow Information	Supplemental Cash Flow Information Years Ended December 31, (in thousands) 2022 2021 2020 Cash paid during the year for Interest and financing expenses (net of capitalization) $ 40,531 $ 30,465 $ 26,148 Income taxes 88,866 67,917 62,328 Supplemental disclosure of non-cash transactions Non-cash additions to property, plant, and equipment $ 4,087 $ 4,872 $ 5,106

Marketable Securities

Marketable Securities	12 Months Ended
Marketable Securities	Dec. 31, 2022
Investments, Debt and Equity Securities [Abstract]
Marketable Securities	Marketable Securities During 2021, NewMarket invested in both debt, which was designated as trading, and equity marketable securities. Subsequently, during the first three months of 2022, we sold all of the marketable securities. While held, the marketable securities were recorded on a settlement date basis at estimated fair value and were classified as current assets in the Consolidated Balance Sheets. Gains and losses, as well as the investment income attributable to the debt and equity securities, are reported in Other income (expense), net in the Consolidated Statements of Income. The debt securities had a cost basis of $50 million and the equity securities had a cost basis of $334 million at December 31, 2021. At December 31, 2022, the cost basis for all marketable securities was zero. The following table provides information on the fair value of the marketable securities, as well as the related level within the fair value hierarchy. The estimated fair value of debt securities was based on reported trades of the debt security adjusted for other observable market data including, but not limited to, benchmark yield curves, market-based quotes of similar assets, and other market-corroborated inputs. The estimated fair value of equity securities was based on actively quoted market prices. December 31, 2021 Fair Value Measurements Using (in thousands) Fair Value Level 1 Level 2 Level 3 Debt securities Corporate bonds $ 48,727 $ 0 $ 48,727 $ 0 Equity securities U.S. government income mutual fund 327,191 327,191 0 0 Total marketable securities $ 375,918 $ 327,191 $ 48,727 $ 0

Trade and Other Accounts Receiv

Trade and Other Accounts Receivable, Net	12 Months Ended
Trade and Other Accounts Receivable, Net	Dec. 31, 2022
Receivables [Abstract]
Trade and Other Accounts Receivable, Net	Trade and Other Accounts Receivable, Net December 31, (in thousands) 2022 2021 Trade receivables $ 384,636 $ 316,702 Income and other tax receivables 60,745 64,887 Other 8,311 10,190 $ 453,692 $ 391,779

Inventories

Inventories	12 Months Ended
Inventories	Dec. 31, 2022
Inventory Disclosure [Abstract]
Inventories	Inventories December 31, (in thousands) 2022 2021 Finished goods and work-in-process $ 497,652 $ 393,778 Raw materials 113,484 86,856 Stores, supplies, and other 20,247 17,905 $ 631,383 $ 498,539 Our U.S. petroleum additives finished goods, work-in-process, and raw materials inventories, which are stated on the LIFO basis, amounted to $165 million at December 31, 2022 and were below replacement cost by approximately $114 million. At December 31, 2021, LIFO basis inventories were $124 million, which was approximately $78 million below replacement cost. Our foreign inventories amounted to $451 million at December 31, 2022 and $357 million at December 31, 2021. Reserves for obsolete and slow-moving inventory included in the table above were not material at December 31, 2022 or December 31, 2021.

Prepaid Expenses and Other Curr

Prepaid Expenses and Other Current Assets	12 Months Ended
Prepaid Expenses and Other Current Assets	Dec. 31, 2022
Prepaid Expense and Other Assets, Current [Abstract]
Prepaid Expenses and Other Current Assets	Prepaid Expenses and Other Current Assets December 31, (in thousands) 2022 2021 Dividend funding $ 17,850 $ 16,648 Income taxes on intercompany profit 6,925 6,879 Other 13,563 15,106 $ 38,338 $ 38,633

Property, Plant, and Equipment,

Property, Plant, and Equipment, at Cost	12 Months Ended
Property, Plant, and Equipment, at Cost	Dec. 31, 2022
Property, Plant and Equipment [Abstract]
Property, Plant, and Equipment, at Cost	Property, Plant, and Equipment, at Cost December 31, (in thousands) 2022 2021 Land $ 37,088 $ 37,746 Land improvements 64,061 61,491 Leasehold improvements 1,832 1,893 Buildings 183,030 185,216 Machinery and equipment 1,279,425 1,275,828 Construction in progress 30,916 27,012 1,596,352 1,589,186 Less: accumulated depreciation and amortization 936,354 912,416 Net property, plant, and equipment $ 659,998 $ 676,770 We depreciate the cost of property, plant, and equipment by the straight-line method over the following estimated useful lives: Land improvements 15 - 40 years Buildings 10 - 46 years Machinery and equipment 3 - 30 years

Intangibles (Net of Amortizatio

Intangibles (Net of Amortization) and Goodwill	12 Months Ended
Intangibles (Net of Amortization) and Goodwill	Dec. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract]
Intangibles (Net of Amortization) and Goodwill	Intangibles (Net of Amortization) and Goodwill The net carrying amount of intangibles and goodwill was $126 million at December 31, 2022 and $128 million at December 31, 2021. The gross carrying amount and accumulated amortization of each type of intangible asset and goodwill are presented in the table below. December 31, 2022 2021 (in thousands) Gross Accumulated Gross Accumulated Amortizing intangible assets Formulas and technology $ 6,200 $ 5,683 $ 6,200 $ 4,650 Contract 2,000 1,200 2,000 1,000 Customer base 5,440 4,350 5,440 4,160 Goodwill 123,662 123,922 $ 137,302 $ 11,233 $ 137,562 $ 9,810 Aggregate amortization expense $ 1,423 $ 2,156 Aggregate amortization expense was $3 million in 2020. All of the intangibles relate to the petroleum additives segment. The change in the gross carrying amount between 2021 and 2022 was due to foreign currency fluctuations. There is no accumulated goodwill impairment. Estimated annual amortization expense related to our intangible assets for the next five years is expected to be (in thousands): 2023 $ 907 2024 390 2025 390 2026 390 2027 190 We amortize formulas and technology over 6 years, the contract over 10 years, and the customer base over 20 years.

Deferred Charges and Other Asse

Deferred Charges and Other Assets	12 Months Ended
Deferred Charges and Other Assets	Dec. 31, 2022
Other Assets, Noncurrent [Abstract]
Other Assets Disclosure	Deferred Charges and Other Assets December 31, (in thousands) 2022 2021 Finance lease right-of-use assets $ 36,893 $ 39,590 Deferred income tax assets 3,575 5,318 Asbestos insurance receivables 2,994 3,429 Deferred financing costs, net of amortization 1,095 1,601 Deposit on future leased plant and equipment 12,063 0 Other 7,005 4,797 $ 63,625 $ 54,735

Accrued Expenses

Accrued Expenses	12 Months Ended
Accrued Expenses	Dec. 31, 2022
Accrued Liabilities, Current [Abstract]
Accrued Expenses	Accrued Expenses December 31, (in thousands) 2022 2021 Employee benefits, payroll, and related taxes $ 36,878 $ 35,607 Customer rebates 27,752 25,505 Taxes other than income and payroll 3,715 4,514 Interest on long-term debt 8,710 8,531 Other 12,453 10,946 $ 89,508 $ 85,103

Long-term Debt

Long-term Debt	12 Months Ended
Long-term Debt	Dec. 31, 2022
Debt Disclosure [Abstract]
Debt Disclosure	Long-term Debt December 31, (in thousands) 2022 2021 Senior notes - 2.70% due 2031 (net of related deferred financing costs) $ 392,737 $ 391,853 Senior notes - 3.78% due 2029 250,000 250,000 Senior notes - 4.10% due 2022 (net of related deferred financing costs) 0 349,434 Revolving credit facility 361,000 148,000 1,003,737 1,139,287 Less: Current maturity of 4.10% senior notes 0 349,434 $ 1,003,737 $ 789,853 2.70% Senior Notes - On March 18, 2021, we issued $400 million aggregate principal amount of 2.70% senior notes due 2031 at an issue price of 98.763%. The 2.70% senior notes are general unsecured senior obligations and rank equally with our other unsecured senior indebtedness. The offer and sale of the notes were registered under the Securities Act of 1933, as amended. We incurred financing costs in 2021 of approximately $4 million related to the 2.70% senior notes, which are being amortized over the term of the notes. The indenture governing the 2.70% senior notes includes certain customary covenants that, among other things and subject to certain qualifications and exceptions, limit our ability and the ability of our subsidiaries to: • grant liens to secure indebtedness; • engage in sale and lease back transactions; • merge or consolidate with, or convey, transfer or lease all or substantially all of our assets to a third party. We were in compliance with all covenants under the indenture governing the 2.70% senior notes as of December 31, 2022 and December 31, 2021. 3.78% Senior Notes - On January 4, 2017, we issued $250 million in senior unsecured notes in a private placement with The Prudential Insurance Company of America and certain other purchasers. These notes bear interest at 3.78% and mature on January 4, 2029. Interest is payable semiannually. Principal payments of $50 million are payable annually beginning on January 4, 2025. We have the right to make optional prepayments on the notes at any time, subject to certain limitations. The note purchase agreement contains representations, warranties, terms, and conditions customary for transactions of this type. These include negative covenants, certain financial covenants, and events of default which are substantially similar to the covenants and events of default in our revolving credit facility. We were in compliance with all covenants under the 3.78% senior notes as of December 31, 2022 and December 31, 2021. 4.10% Senior Notes - In 2012, we issued $350 million aggregate principal amount of 4.10% senior notes due 2022 at an issue price of 99.83%. The notes were senior unsecured obligations. We incurred financing costs totaling approximately $5 million related to the 4.10% senior notes, which were being amortized over the term of the agreement. Interest was payable semiannually. The 4.10% senior notes ranked: • equal in right of payment with all of our existing and future senior unsecured indebtedness; and • senior in right of payment to any of our future subordinated indebtedness. The indenture governing the 4.10% senior notes contained covenants that, among other things, limited our ability and the ability of our subsidiaries to: • create or permit to exist liens; • enter into sale-leaseback transactions; • incur additional guarantees; and • sell all or substantially all of our assets or consolidate or merge with or into other companies. On March 15, 2022, we redeemed the 4.10% senior notes at a redemption price of 100% of the principal amount of $350 million plus the accrued and unpaid interest on the notes and the applicable premium as outlined in the Indenture dated December 20, 2012. The 4.10% senior notes were due December 2022. We recognized a loss of $7.5 million on the early extinguishment including cash paid of $7.1 million for the premium on the early redemption and a write-off of $0.4 million of unamortized deferred financing costs. Revolving Credit Facility - On March 5, 2020, NewMarket and certain foreign subsidiary borrowers entered into a Credit Agreement (the Credit Agreement) with a term of five years. The Credit Agreement provides for a $900 million, multicurrency revolving credit facility with a $500 million sublimit for foreign currency borrowings, a $50 million sublimit for letters of credit, and a $20 million sublimit for swingline loans. The Credit Agreement includes an expansion feature which allows us, subject to certain conditions, to request an increase in the aggregate amount of the revolving credit facility or obtain incremental term loans in an amount up to $425 million. NewMarket's obligations under the Credit Agreement are unsecured and the obligations of foreign subsidiary borrowers are fully and unconditionally guaranteed by NewMarket. The revolving credit facility is available on a revolving basis until March 5, 2025. Borrowings made under the revolving credit facility bear interest at a variable rate determined, at our option, at an annual rate equal to (i) the Alternate Base Rate (ABR), (ii) the Adjusted Term SOFR Rate (SOFR), or (iii) the Adjusted EURIBO Rate (EURIBO), each plus the Applicable Rate and all as defined in the Credit Agreement. The Applicable Rate is based, at our option, on our Leverage Ratio (as defined in the Credit Agreement) or credit rating. Prior to January 11, 2023, when we amended our revolving credit facility, LIBOR was utilized instead of SOFR as an option to establish interest rates on the revolving credit facility. We paid financing costs in 2020 of approximately $1.3 million related to this revolving credit facility and carried over deferred financing costs from our previous revolving credit facility of approximately $1.2 million, resulting in total deferred financing costs of $2.5 million, which we are amortizing over the term of the Credit Agreement. There were outstanding borrowings amounting to $361 million under the revolving credit facility at December 31, 2022 compared to $148 million outstanding borrowings at December 31, 2021. Outstanding letters of credit amounted to $2 million at both December 31, 2022 and December 31, 2021, resulting in the unused portion of the applicable credit facility amounting to $537 million at December 31, 2022 and $750 million at December 31, 2021. The average interest rate for borrowings under the credit facilities was 3.5% during 2022 and 1.6% during 2021. The Credit Agreement contains certain customary covenants, including financial covenants that require NewMarket to maintain a consolidated Leverage Ratio (as defined in the Credit Agreement) of no more than 3.75 to 1.00 except during an Increased Leverage Period (as defined in the Credit Agreement). We were in compliance with all covenants under the revolving credit facility in effect at December 31, 2022 and at December 31, 2021.

Other Noncurrent Liabilities

Other Noncurrent Liabilities	12 Months Ended
Other Noncurrent Liabilities	Dec. 31, 2022
Other Liabilities, Noncurrent [Abstract]
Other Noncurrent Liabilities	Other Noncurrent Liabilities December 31, (in thousands) 2022 2021 Deferred income tax liabilities $ 61,993 $ 89,438 Employee benefits 58,974 86,542 Finance lease liabilities 22,433 25,044 Environmental remediation 9,454 9,370 Asbestos litigation reserve 5,354 6,515 Deemed repatriation of earnings 2,956 2,956 Other 8,655 8,911 $ 169,819 $ 228,776

Stock-based Compensation

Stock-based Compensation	12 Months Ended
Stock-based Compensation	Dec. 31, 2022
Share-Based Payment Arrangement, Noncash Expense [Abstract]
Stock-based Compensation	Stock-based Compensation The 2014 Incentive Compensation and Stock Plan (the Plan) was approved on April 24, 2014. Any employee of our company or an affiliate or a person who is a member of our Board of Directors or the board of directors of an affiliate is eligible to participate in the Plan if the Compensation Committee of the Board of Directors (the Administrator), in its sole discretion, determines that such person has contributed or can be expected to contribute to the profits or growth of our company or its affiliates (each, a participant). Under the terms of the Plan, we may grant participants stock awards, incentive awards, stock units, or options (which may be either incentive stock options or nonqualified stock options), or stock appreciation rights (SARs), which may be granted with a related option. Stock options entitle the participant to purchase a specified number of shares of our common stock at a price that is fixed by the Administrator at the time the option is granted; provided, however, that the price cannot be less than the shares’ fair market value on the date of grant. The maximum period in which an option may be exercised is fixed by the Administrator at the time the option is granted but, in the case of an incentive stock option, cannot exceed 10 years. No participant may be granted or awarded, in any calendar year, shares, options, SARs, or stock units covering more than 200,000 shares of our common stock in the aggregate. For purposes of this limitation and the individual limitation on the grant of options, an option and corresponding SAR are treated as a single award. The maximum aggregate number of shares of our common stock that may be issued under the Plan is 1,000,000. At December 31, 2022, 938,034 shares were available for grant. During 2022, we granted 1,495 shares to five of our non-employee directors, which vested immediately. A summary of activity during 2022 related to NewMarket’s restricted stock and restricted stock units (stock awards) is presented below in whole shares: Number of Shares Weighted Average Grant-Date Fair Value Unvested stock awards at January 1, 2022 27,644 $ 415.18 Granted in 2022 8,593 312.49 Vested in 2022 0 0.00 Forfeited in 2022 (1,825) 406.00 Unvested stock awards at December 31, 2022 34,412 390.02 The weighted average grant-date fair value was $392.63 for stock awards granted in 2021 and $414.33 for stock awards granted in 2020. The fair value of shares vested was $2 million in 2020. No shares vested in 2021. We recognized compensation expense of $2 million in each of 2022, 2021, and 2020 related to stock awards. At December 31, 2022, total unrecognized compensation expense related to stock awards was $5 million, which is expected to be recognized over a period of 2.3 years.

Leases

Leases	12 Months Ended
Leases	Dec. 31, 2022
Leases [Abstract]
Leases	Leases Our leases are for land, real estate, railcars, vehicles, pipelines, plant equipment, and office equipment. We have leases with remaining terms ranging from less than one year to 48 years. Our lease agreements do not contain any material residual value guarantees or material restrictive covenants. The components of lease cost were as follows: Years Ended December 31, (in thousands) 2022 2021 2020 Operating lease cost $ 18,573 $ 18,343 $ 17,371 Finance lease cost: Amortization of assets 2,771 2,795 3,047 Interest on lease liabilities 712 517 417 Short-term lease cost 6,246 6,607 4,665 Variable lease cost 8,152 6,364 4,579 Total lease cost $ 36,454 $ 34,626 $ 30,079 Variable lease costs also include leases that do not have a right-of-use asset or lease liability but are capitalized as part of inventory. Supplemental balance sheet information related to leases was as follows: December 31, (in thousands) Balance Sheet Classification 2022 2021 Operating leases Right-of-use assets Operating lease right-of-use assets $ 62,417 $ 68,402 Current liability Operating lease liabilities $ 15,569 $ 15,709 Noncurrent liability Operating lease liabilities-noncurrent 46,968 52,591 $ 62,537 $ 68,300 Finance leases Right-of-use assets Deferred charges and other assets $ 36,893 $ 39,590 Current liability Other current liabilities $ 2,706 $ 2,828 Noncurrent liability Other noncurrent liabilities 22,433 25,044 $ 25,139 $ 27,872 December 31, 2022 2021 2020 Weighted average remaining lease term (in years) Operating leases 12 12 13 Finance leases 15 16 10 Weighted average incremental borrowing rate Operating leases 3.21 % 3.02 % 3.33 % Finance leases 2.72 % 2.74 % 3.05 % Supplemental cash flow information related to leases was as follows: Years Ended December 31, (in thousands) 2022 2021 2020 Cash paid for amounts included in the measurement of lease liabilities Operating cash flows from operating leases $ 18,632 $ 18,296 $ 17,563 Operating cash flows from finance leases 712 517 417 Financing cash flows from finance leases 2,834 2,841 3,031 Right-of-use assets obtained in exchange for new lease obligations Operating leases $ 12,333 $ 25,035 $ 17,694 Finance leases 84 31,612 982 Maturities of lease liabilities at December 31, 2022 were as follows: (in thousands) Operating Leases Finance Leases 2023 $ 17,151 $ 3,348 2024 12,166 3,304 2025 10,129 3,273 2026 6,851 3,245 2027 4,367 3,229 Thereafter 29,608 11,813 Total lease payments 80,272 28,212 Less: imputed interest 17,735 3,073 Total lease obligations $ 62,537 $ 25,139 Operating lease payments in the table above include approximately $16 million related to options to extend lease terms that are reasonably certain of being exercised. At December 31, 2022, we have entered into leases that have not yet commenced but provide for right-of-use assets of approximately $30 million with remaining related lease obligations of approximately $18 million, which are not included in the above table. Most of the commitments relate to plant and equipment that is being constructed or procured by the future lessors. These leases are expected to commence in 2023.
Leases	Leases Our leases are for land, real estate, railcars, vehicles, pipelines, plant equipment, and office equipment. We have leases with remaining terms ranging from less than one year to 48 years. Our lease agreements do not contain any material residual value guarantees or material restrictive covenants. The components of lease cost were as follows: Years Ended December 31, (in thousands) 2022 2021 2020 Operating lease cost $ 18,573 $ 18,343 $ 17,371 Finance lease cost: Amortization of assets 2,771 2,795 3,047 Interest on lease liabilities 712 517 417 Short-term lease cost 6,246 6,607 4,665 Variable lease cost 8,152 6,364 4,579 Total lease cost $ 36,454 $ 34,626 $ 30,079 Variable lease costs also include leases that do not have a right-of-use asset or lease liability but are capitalized as part of inventory. Supplemental balance sheet information related to leases was as follows: December 31, (in thousands) Balance Sheet Classification 2022 2021 Operating leases Right-of-use assets Operating lease right-of-use assets $ 62,417 $ 68,402 Current liability Operating lease liabilities $ 15,569 $ 15,709 Noncurrent liability Operating lease liabilities-noncurrent 46,968 52,591 $ 62,537 $ 68,300 Finance leases Right-of-use assets Deferred charges and other assets $ 36,893 $ 39,590 Current liability Other current liabilities $ 2,706 $ 2,828 Noncurrent liability Other noncurrent liabilities 22,433 25,044 $ 25,139 $ 27,872 December 31, 2022 2021 2020 Weighted average remaining lease term (in years) Operating leases 12 12 13 Finance leases 15 16 10 Weighted average incremental borrowing rate Operating leases 3.21 % 3.02 % 3.33 % Finance leases 2.72 % 2.74 % 3.05 % Supplemental cash flow information related to leases was as follows: Years Ended December 31, (in thousands) 2022 2021 2020 Cash paid for amounts included in the measurement of lease liabilities Operating cash flows from operating leases $ 18,632 $ 18,296 $ 17,563 Operating cash flows from finance leases 712 517 417 Financing cash flows from finance leases 2,834 2,841 3,031 Right-of-use assets obtained in exchange for new lease obligations Operating leases $ 12,333 $ 25,035 $ 17,694 Finance leases 84 31,612 982 Maturities of lease liabilities at December 31, 2022 were as follows: (in thousands) Operating Leases Finance Leases 2023 $ 17,151 $ 3,348 2024 12,166 3,304 2025 10,129 3,273 2026 6,851 3,245 2027 4,367 3,229 Thereafter 29,608 11,813 Total lease payments 80,272 28,212 Less: imputed interest 17,735 3,073 Total lease obligations $ 62,537 $ 25,139 Operating lease payments in the table above include approximately $16 million related to options to extend lease terms that are reasonably certain of being exercised. At December 31, 2022, we have entered into leases that have not yet commenced but provide for right-of-use assets of approximately $30 million with remaining related lease obligations of approximately $18 million, which are not included in the above table. Most of the commitments relate to plant and equipment that is being constructed or procured by the future lessors. These leases are expected to commence in 2023.

Pension Plans and Other Postret

Pension Plans and Other Postretirement Benefits	12 Months Ended
Pension Plans and Other Postretirement Benefits	Dec. 31, 2022
Retirement Benefits [Abstract]
Pension Plans and Other Postretirement Benefits	Pension Plans and Other Postretirement Benefits NewMarket uses a December 31 measurement date for all of our plans. The service cost component of net periodic benefit cost (income) is included in cost of goods sold; selling, general, and administrative expenses; or research, development, and testing expenses, to reflect where other compensation costs arising from services rendered by the pertinent employee are recorded on the Consolidated Statements of Income. The remaining components of net periodic benefit cost (income) are recorded in other income (expense), net on the Consolidated Statements of Income. U.S. Retirement Plans NewMarket sponsors four pension plans for all full-time U.S. employees that offer a benefit based primarily on years of service and compensation. Employees do not contribute to these pension plans. The plans are as follows: • Salaried employees pension plan; • Afton pension plan for union employees (the Sauget plan); • NewMarket retirement income plan for union employees in Houston, Texas (the Houston plan); and • Afton Chemical Additives pension plan for union employees in Port Arthur, Texas (the Port Arthur plan). In addition, we offer an unfunded, nonqualified supplemental pension plan. This plan restores the pension benefits from our regular pension plans that would have been payable to designated participants if it were not for limitations imposed by U.S. federal income tax regulations. We also provide postretirement health care benefits and life insurance to eligible retired employees. The components of net periodic pension and postretirement benefit cost (income), as well as other amounts recognized in other comprehensive income (loss), are shown below. Years Ended December 31, Pension Benefits Postretirement Benefits (in thousands) 2022 2021 2020 2022 2021 2020 Net periodic benefit cost (income) Service cost $ 18,935 $ 19,316 $ 16,544 $ 1,093 $ 1,079 $ 912 Interest cost 13,478 13,018 13,771 1,163 1,158 1,340 Expected return on plan assets (43,765) (38,675) (37,226) (790) (907) (938) Amortization of prior service cost (credit) 271 271 271 (3,028) (3,028) (3,028) Amortization of actuarial net (gain) loss 1,988 5,708 4,674 51 36 0 Net periodic benefit cost (income) (9,093) (362) (1,966) (1,511) (1,662) (1,714) Other changes in plan assets and benefit obligations recognized in other comprehensive income (loss) Actuarial net (gain) loss (17,083) (79,688) (4,933) (12,445) (257) 2,410 Prior service cost (credit) 86 (35) 65 0 0 0 Amortization of actuarial net gain (loss) (1,988) (5,708) (4,674) (51) (36) 0 Amortization of prior service (cost) credit (271) (271) (271) 3,028 3,028 3,028 Total recognized in other comprehensive income (loss) (19,256) (85,702) (9,813) (9,468) 2,735 5,438 Total recognized in net periodic benefit cost (income) and other comprehensive income (loss) $ (28,349) $ (86,064) $ (11,779) $ (10,979) $ 1,073 $ 3,724 Changes in the plans’ benefit obligations and assets follow. December 31, Pension Benefits Postretirement Benefits (in thousands) 2022 2021 2022 2021 Change in benefit obligation Benefit obligation at beginning of year $ 478,809 $ 457,721 $ 41,348 $ 41,707 Service cost 18,935 19,316 1,093 1,079 Interest cost 13,478 13,018 1,163 1,158 Actuarial net (gain) loss (166,409) 3,217 (12,064) (141) Plan amendment 86 0 0 0 Benefits paid (14,527) (14,463) (2,626) (2,455) Benefit obligation at end of year 330,372 478,809 28,914 41,348 Change in plan assets Fair value of plan assets at beginning of year 663,193 553,171 20,972 21,372 Actual return on plan assets (105,560) 121,615 1,171 1,022 Employer contributions 2,434 2,870 1,217 1,033 Benefits paid (14,527) (14,463) (2,626) (2,455) Fair value of plan assets at end of year 545,540 663,193 20,734 20,972 Funded status $ 215,168 $ 184,384 $ (8,180) $ (20,376) Amounts recognized in the Consolidated Balance Sheets Noncurrent assets $ 244,210 $ 223,002 $ 0 $ 0 Current liabilities (2,834) (2,799) (1,086) (1,058) Noncurrent liabilities (26,208) (35,819) (7,094) (19,318) $ 215,168 $ 184,384 $ (8,180) $ (20,376) Amounts recognized in accumulated other comprehensive loss Actuarial net (gain) loss $ (40,813) $ (21,742) $ (7,811) $ 4,686 Prior service cost (credit) 145 330 (13,561) (16,591) $ (40,668) $ (21,412) $ (21,372) $ (11,905) The accumulated benefit obligation for all domestic defined benefit pension plans was $296 million at December 31, 2022 and $411 million at December 31, 2021. The fair market value of plan assets exceeded both the accumulated benefit obligation and projected benefit obligation for all domestic plans, except the nonqualified plan, at December 31, 2022 and December 31, 2021. The net asset position for plans in which assets exceeded the projected benefit obligation is included in prepaid pension cost on the Consolidated Balance Sheets. The net liability position of plans in which the projected benefit obligation exceeded assets is included in other noncurrent liabilities on the Consolidated Balance Sheets. A portion of the accrued benefit cost for the nonqualified plan is included in current liabilities at both December 31, 2022 and December 31, 2021. As the nonqualified plan is unfunded, the amount reflected in current liabilities represents the expected benefit payments related to the nonqualified plan during the following year. The table below shows selected information on domestic pension and postretirement benefit plans. December 31, (in thousands) 2022 2021 Pension plans with the accumulated benefit obligation in excess of the fair market value of plan assets Accumulated benefit obligation $ 28,838 $ 38,161 Fair market value of plan assets 0 0 Pension plans with the projected benefit obligation in excess of the fair market value of plan assets Projected benefit obligation 29,042 38,618 Fair market value of plan assets 0 0 Postretirement benefit plans with the accumulated postretirement benefit obligation in excess of the fair market value of plan assets Accumulated postretirement benefit obligation 17,782 25,323 Fair market value of plan assets 0 0 There are no assets held by the trustee for the retired beneficiaries of the nonqualified plan. Payments to retired beneficiaries of the nonqualified plan are made with cash from operations. The postretirement healthcare benefits are also unfunded and paid with cash from operations. The benefits from the postretirement life insurance plan are funded through an insurance contract. Assumptions - We used the following assumptions to calculate the results of our retirement plans: Pension Benefits Postretirement Benefits 2022 2021 2020 2022 2021 2020 Weighted-average assumptions used to determine net periodic benefit cost (income) for years ended December 31, Discount rate 2.875 % 2.875 % 3.50 % 2.875 % 2.875 % 3.50 % Expected long-term rate of return on plan assets 8.00 % 8.00 % 8.50 % 4.00 % 4.50 % 4.50 % Rate of projected compensation increase 3.50 % 3.50 % 3.50 % Weighted-average assumptions used to determine benefit obligations at December 31, Discount rate 5.625 % 2.875 % 2.875 % 5.625 % 2.875 % 2.875 % Rate of projected compensation increase 3.50 % 3.50 % 3.50 % For pension plans, we base the assumed expected long-term rate of return for plan assets on an analysis of our actual investments, including our asset allocation, as well as an analysis of expected returns. This analysis reflects the expected long-term rates of return for each significant asset class and economic indicator. The range of returns relies both on forecasts and on broad-market historical benchmarks for expected return, correlation, and volatility for each asset class. Our asset allocation is predominantly weighted towards equities. Through ongoing monitoring of our investments and review of market data, we have determined that we should maintain the expected long-term rate of return for our U.S. plans at 8.0% for the year beginning January 1, 2023. For the postretirement plan, we based the assumed expected long-term rate of return for plan assets on an evaluation of projected interest rates, as well as the guaranteed interest rate for our insurance contract. As a result of that evaluation, we have maintained the expected long-term rate of return to 4.0% for the year beginning January 1, 2023. Plan Assets - Pension plan assets are held and distributed by trusts and consist principally of equity securities and investment-grade fixed income securities. We invest directly in equity securities, as well as in funds which primarily hold equity and debt securities. Our target allocation is 90% to 97% in equities, 3% to 10% in debt securities and 1% to 5% in cash. The pension obligation is long-term in nature and the investment philosophy followed by the Pension Investment Committee is likewise long-term in its approach. The majority of the pension funds are invested in equity securities as historically, equity securities have outperformed debt securities and cash investments, resulting in a higher investment return over the long-term. While in the short-term, equity securities may underperform other investment classes, we are less concerned with short-term results and more concerned with long-term improvement. The pension funds are managed by several different investment companies who predominantly invest in U.S. and international equities. Each investment company’s performance is reviewed quarterly. A small portion of the funds is in investments such as cash and cash equivalents or short-term bonds, which historically has been less vulnerable to short-term market swings. These funds are used to provide the cash needed to meet our monthly obligations. There are no significant concentrations of risk within plan assets, nor do the equity securities include any NewMarket common stock for any year presented. The assets of the postretirement benefit plan are invested completely in an insurance contract. No NewMarket common stock is included in these assets. The following table provides information on the fair value of our pension and postretirement benefit plans assets, as well as the related level within the fair value hierarchy. Investments that are measured at fair value using the net asset value per share (or its equivalent) practical expedient have not been classified by level in the fair value hierarchy. December 31, 2022 December 31, 2021 Fair Value Measurements Using Fair Value Measurements Using (in thousands) Fair Value Level 1 Level 2 Level 3 Fair Value Level 1 Level 2 Level 3 Pension Plans Equity securities: U. S. companies $ 417,687 $ 417,687 $ 0 $ 0 $ 490,775 $ 490,775 $ 0 $ 0 International companies 19,022 19,022 0 0 19,762 19,762 0 0 Cash and cash equivalents 18,979 18,979 0 0 12,451 12,451 0 0 Pooled investment funds: Fixed income securities—mutual funds 29,838 29,838 0 0 18,345 18,345 0 0 International equities—mutual fund 0 0 0 0 21,020 21,020 0 0 Common collective trusts measured at net asset value 60,014 100,840 $ 545,540 $ 485,526 $ 0 $ 0 $ 663,193 $ 562,353 $ 0 $ 0 Postretirement Plans Insurance contract $ 20,734 $ 0 $ 20,734 $ 0 $ 20,972 $ 0 $ 20,972 $ 0 The valuation methodologies used to develop the fair value measurements for the investments in the table above are outlined below. There have been no changes in the valuation techniques used to value the investments. • Equity securities are valued at the closing price reported on a national exchange. • Cash and cash equivalents are valued at cost. • The mutual funds in pooled investment funds are valued at the closing price reported on a national exchange. • The common collective trusts (the trusts) are valued at the net asset value of units held based on the quoted market value of the underlying investments held by the funds. One of the trusts invests primarily in a diversified portfolio of equity securities included in the S&P 500 index and the other trust invests primarily in a diversified portfolio of equity securities included in the Russell 1000 Value index. There are no restrictions on redemption for the index trusts and there were no unfunded commitments. In 2021, there was a third common collective trust that invested primarily in a diversified portfolio of equity securities of companies located outside of the United States and Canada, as determined by a company's jurisdiction of incorporation. We could make withdrawals from this trust on the first business day of each month with notice of at least 10 days. We sold our interest in this trust during 2022. • The insurance contracts are unallocated funds deposited with an insurance company and are stated at an amount equal to the sum of all amounts deposited less the sum of all amounts withdrawn, adjusted for investment return. Cash Flows - For U.S. plans, NewMarket expects to contribute $3 million to our pension plans and $2 million to our postretirement benefit plan in 2023. The expected benefit payments for the next ten years are as follows. (in thousands) Expected Pension Expected 2023 $ 15,574 $ 2,249 2024 16,626 2,107 2025 17,573 2,008 2026 18,469 1,932 2027 19,445 1,866 2028 through 2032 112,278 9,122 Foreign Retirement Plans For most employees of our foreign subsidiaries, NewMarket has defined benefit pension plans that offer benefits based primarily on years of service and compensation. These defined benefit plans provide benefits for employees of our foreign subsidiaries located in Belgium, the U.K., Germany, Canada, and Mexico. NewMarket generally contributes to investment trusts and insurance accounts to provide for these plans. The components of net periodic pension cost (income), as well as other amounts recognized in other comprehensive income (loss), for these foreign defined benefit pension plans are shown below. Years Ended December 31, (in thousands) 2022 2021 2020 Net periodic benefit cost (income) Service cost $ 8,546 $ 10,260 $ 8,544 Interest cost 4,105 3,305 3,866 Expected return on plan assets (9,827) (10,659) (9,729) Amortization of prior service cost (credit) 137 152 (43) Amortization of actuarial net (gain) loss 630 3,595 1,420 Net periodic benefit cost (income) 3,591 6,653 4,058 Other changes in plan assets and benefit obligations recognized in other comprehensive income (loss) Actuarial net (gain) loss (41,108) (38,259) 33,816 Prior service cost (credit) 0 0 0 Amortization of actuarial net gain (loss) (630) (3,595) (1,420) Amortization of prior service (cost) credit (137) (152) 43 Total recognized in other comprehensive income (loss) (41,875) (42,006) 32,439 Total recognized in net periodic benefit cost (income) and other comprehensive income (loss) $ (38,284) $ (35,353) $ 36,497 Changes in the benefit obligations and assets of the foreign defined benefit pension plans follow. December 31, (in thousands) 2022 2021 Change in benefit obligation Benefit obligation at beginning of year $ 235,347 $ 262,589 Service cost 8,546 10,260 Interest cost 4,105 3,305 Employee contributions 693 771 Actuarial net (gain) loss (87,076) (31,254) Benefits paid (5,403) (5,832) Foreign currency translation (20,412) (4,492) Benefit obligation at end of year 135,800 235,347 Change in plan assets Fair value of plan assets at beginning of year 230,389 212,617 Actual return on plan assets (34,748) 19,216 Employer contributions 5,981 6,543 Employee contributions 693 771 Benefits paid (5,403) (5,832) Foreign currency translation (22,364) (2,926) Fair value of plan assets at end of year 174,548 230,389 Funded status $ 38,748 $ (4,958) Amounts recognized in the Consolidated Balance Sheets Noncurrent assets $ 58,374 $ 19,602 Current liabilities (321) (330) Noncurrent liabilities (19,305) (24,230) $ 38,748 $ (4,958) Amounts recognized in accumulated other comprehensive loss Actuarial net (gain) loss $ 1,706 $ 43,444 Prior service cost (credit) 532 669 $ 2,238 $ 44,113 The accumulated benefit obligation for all foreign defined benefit pension plans was $122 million at December 31, 2022 and $204 million at December 31, 2021. The fair market value of plan assets exceeded both the accumulated benefit obligation and projected benefit obligation for the Canada and U.K. plans at both year-end 2022 and 2021. The net asset position of the Canada and U.K. plans are included in prepaid pension cost on the Consolidated Balance Sheets at December 31, 2022 and December 31, 2021. The accumulated benefit obligation and projected benefit obligation exceeded the fair market value of plan assets for the Germany, Belgium, and Mexico plans at December 31, 2022 and December 31, 2021. The accrued benefit cost of these plans is included in other noncurrent liabilities on the Consolidated Balance Sheets for both years. As the Germany plan is unfunded, a portion of the accrued benefit cost is included in current liabilities at year-end 2022 and 2021, reflecting the expected benefit payments related to the plan for the following year. The table below shows selected information on foreign pension plans. December 31, (in thousands) 2022 2021 Pension plans with the accumulated benefit obligation in excess of the fair market value of plan assets Accumulated benefit obligation $ 22,625 $ 26,415 Fair market value of plan assets 13,072 13,110 Pension plans with the projected benefit obligation in excess of the fair market value of plan assets Projected benefit obligation 32,699 37,670 Fair market value of plan assets 13,072 13,110 Assumptions - We used the following weighted-average assumptions to calculate the results of our foreign defined benefit pension plans. 2022 2021 2020 Weighted-average assumptions used to determine net periodic benefit cost (income) for the years ended December 31, Discount rate 1.91 % 1.14 % 1.81 % Expected long-term rate of return on plan assets 4.59 % 4.95 % 5.23 % Rate of projected compensation increase 4.07 % 3.94 % 3.96 % Weighted-average assumptions used to determine benefit obligations at December 31, Discount rate 4.61 % 1.91 % 1.14 % Rate of projected compensation increase 3.55 % 4.07 % 3.94 % The actuarial assumptions used by the various foreign locations are based upon the circumstances of each particular country and pension plan. The factors impacting the determination of the long-term rate of return for a particular foreign pension plan include the market conditions within a particular country, as well as the investment strategy and asset allocation of the specific plan. Plan Assets - Pension plan assets vary by foreign location and plan. Assets are held and distributed by trusts and, depending upon the foreign location and plan, consist primarily of pooled equity funds, pooled debt securities funds, pooled diversified funds, equity securities, debt securities, cash, and insurance contracts. The combined weighted-average target allocation of our foreign pension plans is 38% in equities (including pooled funds), 36% in debt securities (including pooled funds), 7% in insurance contracts, and 19% in pooled diversified funds. While the pension obligation is long-term in nature for each of our foreign plans, the investment strategies followed by each plan vary to some degree based upon the laws of a particular country, as well as the provisions of the specific pension trust. The U.K. and Canada plans are invested predominantly in equity securities funds, diversified funds, and debt securities funds. The funds of these plans are managed by various trustees and investment companies whose performance is reviewed throughout the year. The Belgium plan is invested in an insurance contract. The Mexico plans are invested in mutual funds, equities, and debt securities. The Germany plan has no assets. There are no significant concentrations of risk within plan assets, nor do the equity securities include any NewMarket common stock for any year presented. The following table provides information on the fair value of our foreign pension plans assets, as well as the related level within the fair value hierarchy. Investments that are measured at fair value using net asset value per share (or its equivalent) have not been classified by level in the fair value hierarchy. December 31, 2022 December 31, 2021 Fair Value Measurements Using Fair Value Measurements Using (in thousands) Fair Value Level 1 Level 2 Level 3 Fair Value Level 1 Level 2 Level 3 Insurance contract $ 11,199 $ 0 $ 11,199 $ 0 $ 11,223 $ 0 $ 11,223 $ 0 Equity securities—international companies 492 492 0 0 626 626 0 0 Debt securities 734 734 0 0 438 438 0 0 Pooled investment funds—mutual funds 647 647 0 0 822 822 0 0 Cash and cash equivalents 384 384 0 0 755 755 0 0 Pooled investment funds (measured at net asset value): Equity securities—U.S. companies 0 16,596 Equity securities—international companies 76,177 75,931 Debt securities 49,494 81,224 Diversified growth funds 35,421 42,774 $ 174,548 $ 2,257 $ 11,199 $ 0 $ 230,389 $ 2,641 $ 11,223 $ 0 The valuation methodologies used to develop the fair value measurements for the investments in the table above are outlined below. There have been no changes in the valuation techniques used to value the investments. • The insurance contract represents funds deposited with an insurance company and is stated at an amount equal to the sum of all amounts deposited less the sum of all amounts withdrawn, adjusted for investment return. • Equity securities are valued at the closing price reported on a national exchange. • Debt securities are valued by quoted market prices or valued based on yields currently available on comparable securities of issuers with similar credit ratings. • Pooled investment mutual funds are valued at the closing price reported on a national exchange. • Cash and cash equivalents are valued at cost. • The pooled investment funds are valued at the net asset value of units held by the plans based on the quoted market value of the underlying investments held by the fund. The U.K. pension plan is invested in units of life insurance policies that are linked to equity securities funds, government bond funds, and diversified growth funds. The underlying assets of the equity funds, bond funds, and diversified growth funds are traded on a national exchange and are based on tracking various indices of the London Stock Exchange. There are no redemption restrictions on these funds. There were no unfunded commitments for the U.K. pension plan funds. The Canada pension plan is invested in a pooled Canadian equity fund and a pooled diversified fund. The Canadian equity fund invests in a diversification (sector and industry) of equities listed on a recognized Canadian exchange. The diversified fund invests in a diversified mix of equities, fixed income securities, cash, and cash equivalent securities. There are no redemption restrictions on the pooled Canadian funds and there were no unfunded commitments. Cash Flows - For foreign pension plans, NewMarket expects to contribute $6 million to the plans in 2023. The expected benefit payments for the next ten years for our foreign pension plans are shown in the following table. (in thousands) Expected Pension 2023 $ 6,649 2024 7,133 2025 5,606 2026 5,726 2027 6,381 2028 through 2032 38,082

Income Taxes

Income Taxes	12 Months Ended
Income Taxes	Dec. 31, 2022
Income Tax Disclosure [Abstract]
Income Tax Expense	Income Taxes Our income before income tax expense, as well as our provision for income taxes is shown in the table below. Years Ended December 31, (in thousands) 2022 2021 2020 Income before income tax expense Domestic $ 170,785 $ 97,245 $ 149,791 Foreign 176,949 150,306 181,496 $ 347,734 $ 247,551 $ 331,287 Income tax expense Current income taxes Federal $ 57,778 $ 13,166 $ 14,861 State 12,515 7,639 6,106 Foreign 40,548 33,860 32,198 110,841 54,665 53,165 Deferred income taxes Federal (34,088) 1,232 4,498 State (8,491) 38 1,090 Foreign (66) 708 1,966 (42,645) 1,978 7,554 Total income tax expense $ 68,196 $ 56,643 $ 60,719 The reconciliation of the U.S. federal statutory rate to the effective income tax rate follows. % of Income Before Income Tax Expense 2022 2021 2020 Federal statutory rate 21.0 % 21.0 % 21.0 % State taxes, net of federal tax 0.9 2.4 1.7 Foreign operations 1.4 2.4 0.7 Research tax credit (1.6) (2.2) (1.7) Foreign-derived intangible tax benefit (3.0) (0.7) (0.4) Uncertain tax positions 0.3 (0.1) (1.7) Taxes applicable to prior years (0.1) (0.4) (1.4) Other items and adjustments 0.7 0.5 0.1 Effective income tax rate 19.6 % 22.9 % 18.3 % Our deferred income tax assets and liabilities follow. December 31, (in thousands) 2022 2021 Deferred income tax assets Capitalized research expenses $ 53,249 $ 15,708 Lease liabilities 11,868 12,775 Operating loss and credit carryforwards 15,336 12,746 Foreign currency translation adjustments 5,261 4,054 Other 14,159 11,027 Gross deferred income tax assets 99,873 56,310 Valuation allowance (13,012) (12,219) Total deferred income tax assets 86,861 44,091 Deferred income tax liabilities Depreciation and amortization 78,058 79,023 Future employee benefits 52,446 32,253 Lease assets 12,174 12,790 Other 2,601 4,145 Total deferred income tax liabilities 145,279 128,211 Net deferred income tax (liabilities) assets $ (58,418) $ (84,120) Net deferred income tax (liabilities) assets in the table above are reflected in the Consolidated Balance Sheets on a net jurisdictional basis. Deferred income tax assets are included in deferred charges and other assets. See Note 12. Deferred income tax liabilities are included in other noncurrent liabilities. See Note 15. Our deferred taxes are in a net liability position at December 31, 2022. Our deferred tax assets include $15 million of foreign operating loss carryforwards, foreign capital loss carryforwards, foreign non-trading deficit carryforwards, and foreign and state tax credits. The operating loss carryforwards expire in 2028 through 2040 and certain tax credits expire in 2026 through 2027. Based on current forecasted operating plans and historical profitability, we believe that we will recover the full benefit of our deferred tax assets with the exception of $13 million of the aforementioned operating loss, capital loss, and tax credit carryforwards. Therefore, as of December 31, 2022, we have recorded an offsetting valuation allowance in this amount. During 2021, we released the valuation allowance on a negligible amount of net operating losses that we utilized during the year. During 2022, we did not release any valuation allowances. We do not expect to distribute earnings from our foreign subsidiaries in a manner that would result in significant U.S. tax, as these earnings have been previously taxed in the U.S. or meet the requirements for a dividends received deduction. However, at December 31, 2021, we had a $2 million deferred tax liability for the currency impact and for the withholding taxes that will not be creditable upon distribution. As of December 31, 2022, we have an immaterial deferred tax liability for withholding taxes that will not be creditable upon distribution. We have not provided a deferred tax liability on approximately $268 million of temporary differences related to investments in foreign subsidiaries that are essentially permanent in duration, as these earnings are considered to be indefinitely reinvested. If we were to repatriate these earnings, we could be subject to income taxes and withholding taxes in various countries. Determination of the amount of unrecognized deferred income tax liability is not practicable due to the complexity associated with the hypothetical calculation. A reconciliation of the beginning and ending balances of the unrecognized tax benefits from uncertain positions is as follows: December 31, (in thousands) 2022 2021 2020 Balance at beginning of year $ 6,374 $ 6,905 $ 13,543 Increases for tax positions of prior years 1,677 0 363 Increases for tax positions of the current year 809 698 824 Settlements 0 (247) 0 Lapses of statutes (981) (982) (7,825) Balance at end of year $ 7,879 $ 6,374 $ 6,905 At December 31, 2022, all of the amount of unrecognized tax benefits, if recognized, would affect our effective tax rate. We expect the amount of unrecognized tax benefits to change in the next twelve months; however, we do not expect the change to have a material impact on our financial statements.

Fair Value Measurements

Fair Value Measurements	12 Months Ended
Fair Value Measurements	Dec. 31, 2022
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements The carrying amount of cash and cash equivalents in the Consolidated Balance Sheets, as well as the fair value, was $69 million at December 31, 2022 and $83 million at December 31, 2021. The fair value is categorized in Level 1 of the fair value hierarchy. No material events occurred during 2022 requiring adjustment to the recognized balances of assets or liabilities which are recorded at fair value on a nonrecurring basis. Long-term debt - We record the carrying amount of our long-term debt at historical cost, less deferred financing costs related to our outstanding senior notes. The estimated fair value of our long-term debt is shown in the table below and is based primarily on estimated current rates available to us for debt of the same remaining duration and adjusted for nonperformance risk and credit risk. The estimated fair value of our publicly traded outstanding senior notes included in long-term debt in the table below is based on the last quoted price closest to December 31 of each year. The fair value of our debt instruments is categorized as Level 2. December 31, 2022 December 31, 2021 (in thousands) Carrying Fair Carrying Fair Long-term debt, including current maturities $ 1,003,737 $ 906,891 $ 1,139,287 $ 1,178,066

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
Commitments and Contingencies	Dec. 31, 2022
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Contractual Commitments - We have non-lease contractual obligations for the construction of assets, as well as purchases of property and equipment, of approximately $18 million at December 31, 2022, all of which are due within five years. We also have commitments for leases which have not yet commenced. See Note 17 for further information. Purchase Obligations - We have purchase obligations for goods or services that are enforceable, legally binding, and specify all significant terms, including: fixed or minimum quantities to be purchased; fixed, minimum, or variable price provisions; and the approximate timing of the transaction. Purchase obligations exclude agreements that are cancelable without penalty. Purchase orders made in the ordinary course of business are excluded from this amount. Any amounts for which we are liable under purchase orders are reflected in our Consolidated Balance Sheets as accounts payable or accrued expenses. Future payments for purchase obligations as of December 31, 2022 are (in thousands): 2023 $ 83,038 2024 27,634 2025 3,634 2026 3,001 2027 2,959 After 2027 6,875 Litigation - We are involved in legal proceedings that are incidental to our business and may include administrative or judicial actions. Some of these legal proceedings involve governmental authorities and relate to environmental matters. For further information, see Environmental below and Item 1 of this Form 10-K. While it is not possible to predict or determine with certainty the outcome of any legal proceeding, we believe the outcome of any of these proceedings, or all of them combined, will not result in a material effect on our financial statements. Asbestos We are a defendant in personal injury lawsuits involving exposure to asbestos. These cases involve exposure to asbestos in premises owned or operated, or formerly owned or operated, by subsidiaries of NewMarket. We have never manufactured, sold, or distributed products that contain asbestos. Nearly all of these cases are pending in Texas, Louisiana, or Illinois and involve multiple defendants. We maintain an accrual for these proceedings, as well as a receivable for expected insurance recoveries. The accrual for our premises asbestos liability related to currently asserted claims is based on the following assumptions and factors: • We are often one of many defendants. This factor influences both the number of claims settled against us and the indemnity cost associated with such resolutions. • The estimated percent of claimants in each case that, after discovery, will actually make a claim against us, out of the total number of claimants in a case, is based on a level consistent with past experience and current trends. • We utilize average comparable plaintiff cost history as the basis for estimating pending premises asbestos-related claims. These claims are filed by both former contractors and former employees who worked at past and present company locations. We also include an estimated inflation factor in the calculation. • No estimate is made for unasserted claims. • The estimated recoveries from insurance and Albemarle Corporation (a former operation of our company) for these cases are based on, and are consistent with, the 2005 settlement agreements with The Travelers Indemnity Company. Based on the above assumptions, we have provided an undiscounted liability related to premises asbestos claims of $7 million at December 31, 2022 and $8 million at December 31, 2021. The liabilities related to premises asbestos claims are included in accrued expenses (current portion) and other noncurrent liabilities on the Consolidated Balance Sheets. Certain of these costs are recoverable through the settlement agreements with The Travelers Indemnity Company and with Albemarle Corporation. The receivable for these recoveries related to premises asbestos liabilities was $4 million at both December 31, 2022 and December 31, 2021. These receivables are included in trade and other accounts receivable, net on the Consolidated Balance Sheets for the current portion. The noncurrent portion is included in deferred charges and other assets. Environmental - We are involved in environmental proceedings and potential proceedings relating to soil and groundwater contamination, disposal of hazardous waste, and other environmental matters at several of our current or former facilities, or at third-party sites where we have been designated as a PRP. While we believe we are currently adequately accrued for known environmental issues, it is possible that unexpected future costs could have a significant impact on our financial statements. Our total accruals for environmental remediation, dismantling, and decontamination were approximately $10 million at December 31, 2022 and $11 million at December 31, 2021. Of the total accrual, the current portion is included in accrued expenses and the noncurrent portion is included in other noncurrent liabilities on the Consolidated Balance Sheets

Other Comprehensive Income (Los

Other Comprehensive Income (Loss) and Accumulated Other Comprehensive Loss	12 Months Ended
	Dec. 31, 2022
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Other Comprehensive Income (Loss) and Accumulated Other Comprehensive Loss	Other Comprehensive Income (Loss) and Accumulated Other Comprehensive Loss The balances of, and changes in, the components of accumulated other comprehensive loss, net of tax, consist of the following: (in thousands) Pension Plans Foreign Currency Translation Adjustments Accumulated Other Balance at December 31, 2019 $ (69,795) $ (92,953) $ (162,748) Other comprehensive income (loss) before reclassifications (25,490) 12,560 (12,930) Amounts reclassified from accumulated other comprehensive loss (a) 2,514 0 2,514 Other comprehensive income (loss) (22,976) 12,560 (10,416) Balance at December 31, 2020 (92,771) (80,393) (173,164) Other comprehensive income (loss) before reclassifications 89,194 (3,356) 85,838 Amounts reclassified from accumulated other comprehensive loss (a) 5,099 0 5,099 Other comprehensive income (loss) 94,293 (3,356) 90,937 Balance at December 31, 2021 1,522 (83,749) (82,227) Other comprehensive income (loss) before reclassifications 53,019 (42,808) 10,211 Amounts reclassified from accumulated other comprehensive loss (a) 21 0 21 Other comprehensive income (loss) 53,040 (42,808) 10,232 Balance at December 31, 2022 $ 54,562 $ (126,557) $ (71,995) (a) The pension plan and other postretirement benefit components of accumulated other comprehensive loss are included in the computation of net periodic benefit cost (income). See Note 18 for further information.

Recent Accounting Pronouncement

Recent Accounting Pronouncements	12 Months Ended
Recent Accounting Pronouncements	Dec. 31, 2022
Accounting Standards Update and Change in Accounting Principle [Abstract]
Recent Accounting Pronouncements	Recent Accounting PronouncementsIn September 2022, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update No. 2022-04, "Liabilities - Supplier Finance Programs - Disclosure of Supplier Finance Program Obligations" (ASU 2022-04). FASB issued ASU 2022-04 to enhance the transparency of supplier finance programs by requiring disclosures surrounding the programs be included in the financial statements. ASU 2022-04 is effective for our reporting period beginning January 1, 2023. We continue to evaluate the impact of ASU 2022-04 on our consolidated financial statements, but do not currently expect a significant impact.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policy)	12 Months Ended
Summary of Significant Accounting Policies (Policy)	Dec. 31, 2022
Accounting Policies [Abstract]
Consolidation	Consolidation - Our consolidated financial statements include the accounts of NewMarket Corporation and its subsidiaries. All intercompany transactions are eliminated upon consolidation. References to "we," "us," "our," the "company," and "NewMarket" are to NewMarket Corporation and its consolidated subsidiaries, unless the context indicates otherwise. NewMarket is the parent company of separate operating companies, each managing its own assets and liabilities. Those companies are Afton, which focuses on petroleum additive products; Ethyl, representing certain contracted manufacturing and related services, as well as the antiknock compounds business; and NewMarket Development, which manages the real property and improvements that we own in Virginia. NewMarket is also the parent company of NewMarket Services, which provides various administrative services to NewMarket, Afton, Ethyl, and NewMarket Development. Certain reclassifications have been made to the accompanying consolidated financial statements and/or the related notes to conform to the current presentation.
Foreign Currency Translation	Foreign Currency Translation - We translate the balance sheets of our foreign subsidiaries into U.S. Dollars based on the current exchange rate at the end of each period. We translate the statements of income using the weighted-average exchange rates for the period. NewMarket includes translation adjustments in the Consolidated Balance Sheets as part of accumulated other comprehensive loss and transaction adjustments in the Consolidated Statements of Income as part of cost of goods sold.
Revenue Recognition	Revenue Recognition - We recognize revenue when control of the product is transferred to our customer and for an amount that reflects the consideration we expect to collect from the customer. Net sales (revenues) are reported at the gross amount billed, including amounts related to shipping that are charged to the customer. Provisions for rebates to customers are recorded in the same period that the related sales are recorded. Freight costs incurred on the delivery of products are included in the Consolidated Statements of Income in cost of goods sold. Our standard terms of delivery are included in our contracts, sales order confirmation documents, and invoices. Taxes assessed by a governmental authority concurrent with sales to our customers, including sales, use, value-added, and revenue-related excise taxes, are not included as net sales, but are reflected in accrued expenses until remitted to the appropriate governmental authority.
Cash and Cash Equivalents	Cash and Cash Equivalents - Our cash equivalents consist of government obligations and commercial paper with original maturities of 90 days or less. Throughout the year, we have cash balances in excess of federally insured amounts on deposit with various financial institutions. We state cash and cash equivalents at cost, which approximates fair value.
Marketable Securities, Policy	Marketable Securities -
Accounts Receivable	Accounts Receivable - We record our accounts receivable at outstanding principal adjusted for allowances for credit losses. The allowance for credit losses represents probable losses to be incurred if our customers do not make required payments. We determine the adequacy of the allowance by periodically evaluating each customer’s receivable balance, considering their financial condition and credit history, and considering current economic conditions. The allowance for credit losses was not material at December 31, 2022 or December 31, 2021.
Inventories	Inventories - NewMarket values its inventories at the lower of cost or net realizable value. In the United States, petroleum additives inventory cost is determined on the last-in, first-out (LIFO) basis. For all other inventory, we determine cost using a weighted-average method. Inventory cost includes raw materials, direct labor, and manufacturing overhead.
Property, Plant, and Equipment	Property, Plant, and Equipment - We state property, plant, and equipment at cost less accumulated depreciation and compute depreciation by the straight-line method based on the estimated useful lives of the assets. We capitalize expenditures for significant improvements that extend the useful life of the related property. We expense repairs and maintenance, including plant turnaround costs, as incurred. When property is sold or retired, we remove the cost and accumulated depreciation from the accounts and any related gain or loss is included in earnings.
Intangibles (Net of Amortization) and Goodwill	Intangibles (Net of Amortization) and Goodwill - Identifiable intangibles include the cost of acquired contracts, formulas and technology, trademarks and trade names, and customer bases. We assign a value to identifiable intangibles based on independent third-party appraisals and management's assessment at the time of acquisition. NewMarket amortizes the cost of the customer bases by an accelerated method and the cost of the remaining identifiable intangibles by the straight-line method over the estimated economic life of the intangible. Goodwill arises from the excess of cost over the net assets of businesses acquired. Goodwill represents the residual purchase price after allocation to all identifiable net assets. We test goodwill for impairment each year, as well as whenever a significant event or circumstance occurs which could reduce the fair value of the reporting unit to which the goodwill applies below the carrying amount of the reporting unit.
Impairment of Long-Lived Assets	Impairment of Long-Lived Assets - When significant events or circumstances occur that might impair the value of long-lived assets, we evaluate recoverability of the recorded cost of these assets. Assets are considered to be impaired if their carrying amount is not recoverable from the estimated undiscounted future cash flows associated with the assets. If we determine an asset is impaired and its recorded cost is higher than estimated fair market value based on the estimated present value of future cash flows, we adjust the asset to estimated fair market value.
Environmental Costs	Environmental Costs - NewMarket capitalizes environmental compliance costs if they extend the useful life of the related property or prevent future contamination. Environmental compliance costs also include maintenance and operation of pollution prevention and control facilities. We expense these compliance costs in cost of goods sold as incurred. Accrued environmental remediation and monitoring costs relate to an existing condition caused by past operations. NewMarket accrues these costs in current operations within cost of goods sold in the Consolidated Statements of Income when it is probable that we have incurred a liability and the amount can be reasonably estimated. These estimates are based on an assessment of the site, available clean-up methods, and prior experience in handling remediation. When we can reliably determine the amount and timing of future cash flows, we discount these liabilities, incorporating an inflation factor.
Legal Costs	Legal Costs - We expense legal costs in the period incurred.
Employee Savings Plan	Employee Savings Plan -
Research, Development, and Testing Expenses	Research, Development, and Testing Expenses -
Income Taxes	Income Taxes - We recognize deferred income taxes for temporary differences between the financial reporting basis and the income tax basis of assets and liabilities. We also adjust for changes in tax rates and laws at the time the changes are enacted. A valuation allowance is recorded when it is more likely than not that a deferred tax asset will not be realized. We typically remove a tax impact from accumulated other comprehensive loss when the underlying circumstance which gave rise to the tax impact no longer exists. We recognize accrued interest and penalties associated with uncertain tax positions as part of income tax expense on our Consolidated Statements of Income.
Leases	Leases - We determine if an arrangement includes a lease at the inception of the agreement. The right-of-use asset and lease liability are determined at the lease commencement date and are based on the present value of estimated lease payments. Our lease agreements contain both fixed and variable lease payments. In some cases, variable lease payments are based on a rate or an index. Fixed lease payments, as well as variable lease payments which are based on a rate or index, are included in the determination of the right-of-use asset and lease liability at lease inception. Variable lease payments that are not based on a rate or index are expensed when incurred. The present value of estimated lease payments is determined utilizing the rate implicit in the lease agreement, if that rate can be determined. If the implicit rate cannot be determined, the present value of estimated lease payments is determined utilizing our incremental borrowing rate. The incremental borrowing rate is determined at the lease commencement date and is developed utilizing a readily available market interest rate curve adjusted for our credit quality. Some of our leases include an option to renew that can extend the lease term. For those leases which are reasonably certain to be renewed, we include the renewal in the lease term. We do not recognize leases with terms of 12 months or less on the balance sheet for any lease class, except the railcar lease class. For the short-term leases not recorded on the balance sheet, the lease payments are recognized in the Consolidated Statements of Income on a straight-line basis over the lease term. We account for the lease and nonlease components as a single lease component in determining the right-of-use assets and lease liabilities for all lease classes.
Derivative Financial Instruments and Hedging Activities	Derivative Financial Instruments and Hedging Activities - We are exposed to certain risks arising from both our business operations and economic conditions. We manage our exposures to a wide variety of business and operational risks through management of our core business activities. We manage certain economic risks, including interest rate, liquidity, and credit risk primarily by managing the amount, sources, and duration of our debt funding, as well as through the use of derivative financial instruments. We sometimes enter into interest rate swaps to manage our exposure to interest rate movements. In addition, our foreign operations expose us to fluctuations of foreign exchange rates. These fluctuations may impact our results of operations, financial position, and cash flows. To manage this exposure, we sometimes enter into foreign currency forward contracts to minimize currency exposure due to cash flows from foreign operations. We record all derivatives on the balance sheet at fair value. The accounting for changes in the fair value of derivatives depends on the intended use of the derivative, whether we have elected to designate a derivative in a hedging relationship and apply hedge accounting, and whether the hedging relationship has satisfied the criteria necessary to apply hedge accounting. We may enter into derivative contracts that are intended to economically hedge certain of our risks, even though hedge accounting does not apply, or we elect not to apply hedge accounting. We do not enter into derivative instruments for speculative purposes. We had no derivative financial instruments outstanding at December 31, 2022 or December 31, 2021.
Stock-based Compensation	Stock-based Compensation - We calculate the fair value of restricted stock and restricted stock units based on the closing price of our common stock on the date of grant. If award recipients are entitled to receive dividends during the vesting period, we make no adjustment to the fair value of the award for dividends. If the award does not entitle recipients to dividends during the vesting period, we reduce the grant-date price of our common stock by the present value of the dividends expected to be paid on the underlying shares during the vesting period, discounted at the risk-free interest rate.
Estimates and Risks Due to Concentration of Business	Estimates and Risks Due to Concentration of Business - The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from those estimates. In addition, our financial results can be influenced by certain risk factors. Some of our significant concentrations of risk include the following: • reliance on a small number of significant customers; • customers concentrated in the fuel and lubricant industries; and • production of several of our products solely at one facility.
Debt, Policy [Policy Text Block]	Long-term debt - We record the carrying amount of our long-term debt at historical cost, less deferred financing costs related to our outstanding senior notes.
Fair Value Measurement, Policy [Policy Text Block]	Long-term debt - We record the carrying amount of our long-term debt at historical cost, less deferred financing costs related to our outstanding senior notes.

Net Sales (Tables)

Net Sales (Tables)	12 Months Ended
Net Sales (Tables)	Dec. 31, 2022
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenue [Table Text Block]	The following table provides information on our net sales by geographic area. Information on net sales by segment is in Note 4. Years Ended December 31, (in thousands) 2022 2021 2020 Net sales United States $ 974,963 $ 780,278 $ 650,654 China 181,283 255,219 213,788 Europe, Middle East, Africa, India 807,782 708,675 651,645 Asia Pacific, except China 435,684 325,621 279,847 Other foreign 365,087 286,317 214,997 Net sales $ 2,764,799 $ 2,356,110 $ 2,010,931

Earnings Per Share (Tables)

Earnings Per Share (Tables)	12 Months Ended
Earnings Per Share (Tables)	Dec. 31, 2022
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	The following table illustrates the earnings allocation method utilized in the calculation of basic and diluted earnings per share. Years Ended December 31, (in thousands, except per-share amounts) 2022 2021 2020 Earnings per share numerator: Net income attributable to common shareholders before allocation of earnings to participating securities $ 279,538 $ 190,908 $ 270,568 Earnings allocated to participating securities (876) (462) (448) Net income attributable to common shareholders after allocation of earnings to participating securities $ 278,662 $ 190,446 $ 270,120 Earnings per share denominator: Weighted-average number of shares of common stock outstanding - basic and diluted 10,035 10,756 10,961 Earnings per share - basic and diluted $ 27.77 $ 17.71 $ 24.64

Segment and Geographic Area I_2

Segment and Geographic Area Information (Tables)	12 Months Ended
Segment and Geographic Area Information (Tables)	Dec. 31, 2022
Segment Reporting [Abstract]
Schedule of Net Sales by Segment	The table below reports net sales and operating profit by segment, as well as a reconciliation to income before income tax expense, for the last three years. Years Ended December 31, (in thousands) 2022 2021 2020 Net sales Petroleum additives Lubricant additives $ 2,342,622 $ 1,998,772 $ 1,686,649 Fuel additives 411,688 345,170 314,918 Total 2,754,310 2,343,942 2,001,567 All other 10,489 12,168 9,364 Net sales (a) $ 2,764,799 $ 2,356,110 $ 2,010,931 Segment operating profit Petroleum additives $ 378,244 $ 281,055 $ 333,241 All other (1,782) (1,525) (100) Segment operating profit 376,462 279,530 333,141 Corporate, general, and administrative expenses (21,579) (21,214) (21,744) Interest and financing expenses, net (35,202) (34,218) (26,328) Loss on early extinguishment of debt (7,545) 0 0 Other income (expense), net 35,598 23,453 46,218 Income before income tax expense $ 347,734 $ 247,551 $ 331,287
Schedule Of Segment Operating Profit	The table below reports net sales and operating profit by segment, as well as a reconciliation to income before income tax expense, for the last three years. Years Ended December 31, (in thousands) 2022 2021 2020 Net sales Petroleum additives Lubricant additives $ 2,342,622 $ 1,998,772 $ 1,686,649 Fuel additives 411,688 345,170 314,918 Total 2,754,310 2,343,942 2,001,567 All other 10,489 12,168 9,364 Net sales (a) $ 2,764,799 $ 2,356,110 $ 2,010,931 Segment operating profit Petroleum additives $ 378,244 $ 281,055 $ 333,241 All other (1,782) (1,525) (100) Segment operating profit 376,462 279,530 333,141 Corporate, general, and administrative expenses (21,579) (21,214) (21,744) Interest and financing expenses, net (35,202) (34,218) (26,328) Loss on early extinguishment of debt (7,545) 0 0 Other income (expense), net 35,598 23,453 46,218 Income before income tax expense $ 347,734 $ 247,551 $ 331,287
Schedule Of Asset Information By Segment	The following tables show asset information by segment and the reconciliation to consolidated assets. Segment assets consist of accounts receivable, inventory, and long-lived assets. Long-lived assets included in the petroleum additives segment amounts in the table below include property, plant, and equipment (net of depreciation), intangibles (net of amortization) and goodwill, and lease right-of-use assets. The additions to long-lived assets include property, plant, and equipment and lease right-of-use assets. December 31, (in thousands) 2022 2021 Segment assets Petroleum additives $ 1,929,340 $ 1,752,467 All other 18,738 12,602 1,948,078 1,765,069 Cash and cash equivalents 68,712 83,304 Marketable securities 0 375,918 Non-segment other accounts receivable 2,220 11,884 Prepaid expenses and other current assets 38,338 38,633 Non-segment property, plant, and equipment, net 32,191 30,352 Prepaid pension cost 302,584 242,604 Non-segment lease right-of-use assets 26 105 Non-segment deferred charges and other assets 14,669 10,567 Total assets $ 2,406,818 $ 2,558,436
Additions To Long-lived Assets And Depreciation And Amortization By Segment	Years Ended December 31, (in thousands) 2022 2021 2020 Additions to long-lived assets Petroleum additives $ 64,456 $ 134,873 $ 109,536 All other 147 22 3 Corporate 3,983 686 2,453 Total additions to long-lived assets $ 68,586 $ 135,581 $ 111,992 Depreciation and amortization Petroleum additives $ 78,744 $ 80,495 $ 80,811 All other 51 51 52 Corporate 3,490 3,774 3,139 Total depreciation and amortization $ 82,285 $ 84,320 $ 84,002
Schedule Of Net Sales, Total Assets, And Long-Lived Assets By Geographic Area	The tables below report net sales, total assets, and long-lived assets by geographic area, as well as by country for those countries with significant net sales or long-lived assets. Since our foreign operations are significant to our overall business, we are also presenting net sales in the table below by the major regions in which we operate. NewMarket assigns net sales to geographic areas based on the location to which the product was shipped to a third party. Long-lived assets in the table below include property, plant, and equipment, net of depreciation, and lease right-of-use assets. Years Ended December 31, (in thousands) 2022 2021 2020 Net sales United States $ 974,963 $ 780,278 $ 650,654 China 181,283 255,219 213,788 Europe, Middle East, Africa, India 807,782 708,675 651,645 Asia Pacific, except China 435,684 325,621 279,847 Other foreign 365,087 286,317 214,997 Net sales $ 2,764,799 $ 2,356,110 $ 2,010,931 December 31, (in thousands) 2022 2021 Total assets United States $ 990,037 $ 1,255,464 Foreign 1,416,781 1,302,972 Total assets $ 2,406,818 $ 2,558,436 Long-lived assets United States $ 363,211 $ 360,204 Singapore 247,218 263,614 Other foreign 148,879 160,944 Total long-lived assets $ 759,308 $ 784,762

Supplemental Cash Flow Inform_2

Supplemental Cash Flow Information (Tables)	12 Months Ended
Supplemental Cash Flow Information (Tables)	Dec. 31, 2022
Supplemental Cash Flow Information [Abstract]
Schedule Of Supplemental Cash Flow Information	Years Ended December 31, (in thousands) 2022 2021 2020 Cash paid during the year for Interest and financing expenses (net of capitalization) $ 40,531 $ 30,465 $ 26,148 Income taxes 88,866 67,917 62,328 Supplemental disclosure of non-cash transactions Non-cash additions to property, plant, and equipment $ 4,087 $ 4,872 $ 5,106

Marketable Securities (Tables)

Marketable Securities (Tables)	12 Months Ended
Marketable Securities (Tables)	Dec. 31, 2022
Investments, Debt and Equity Securities [Abstract]
Fair Value Measurements, Recurring and Nonrecurring [Table Text Block]	The following table provides information on the fair value of the marketable securities, as well as the related level within the fair value hierarchy. The estimated fair value of debt securities was based on reported trades of the debt security adjusted for other observable market data including, but not limited to, benchmark yield curves, market-based quotes of similar assets, and other market-corroborated inputs. The estimated fair value of equity securities was based on actively quoted market prices. December 31, 2021 Fair Value Measurements Using (in thousands) Fair Value Level 1 Level 2 Level 3 Debt securities Corporate bonds $ 48,727 $ 0 $ 48,727 $ 0 Equity securities U.S. government income mutual fund 327,191 327,191 0 0 Total marketable securities $ 375,918 $ 327,191 $ 48,727 $ 0

Trade and Other Accounts Rece_2

Trade and Other Accounts Receivable, Net (Tables)	12 Months Ended
Trade and Other Accounts Receivable, Net (Tables)	Dec. 31, 2022
Receivables [Abstract]
Schedule of Trade and Other Accounts Receivable, Net	December 31, (in thousands) 2022 2021 Trade receivables $ 384,636 $ 316,702 Income and other tax receivables 60,745 64,887 Other 8,311 10,190 $ 453,692 $ 391,779

Inventories (Tables)

Inventories (Tables)	12 Months Ended
Inventories (Tables)	Dec. 31, 2022
Inventory Disclosure [Abstract]
Schedule Of Inventories	December 31, (in thousands) 2022 2021 Finished goods and work-in-process $ 497,652 $ 393,778 Raw materials 113,484 86,856 Stores, supplies, and other 20,247 17,905 $ 631,383 $ 498,539

Prepaid Expenses and Other Cu_2

Prepaid Expenses and Other Current Assets (Tables)	12 Months Ended
Prepaid Expenses and Other Current Assets (Tables)	Dec. 31, 2022
Prepaid Expense and Other Assets, Current [Abstract]
Schedule of Prepaid Expenses and Other Current Assets	December 31, (in thousands) 2022 2021 Dividend funding $ 17,850 $ 16,648 Income taxes on intercompany profit 6,925 6,879 Other 13,563 15,106 $ 38,338 $ 38,633

Property, Plant, and Equipmen_2

Property, Plant, and Equipment, at Cost (Tables)	12 Months Ended
Property, Plant, and Equipment, at Cost (Tables)	Dec. 31, 2022
Property, Plant and Equipment [Abstract]
Schedule Of Property, Plant, And Equipment, At Cost	December 31, (in thousands) 2022 2021 Land $ 37,088 $ 37,746 Land improvements 64,061 61,491 Leasehold improvements 1,832 1,893 Buildings 183,030 185,216 Machinery and equipment 1,279,425 1,275,828 Construction in progress 30,916 27,012 1,596,352 1,589,186 Less: accumulated depreciation and amortization 936,354 912,416 Net property, plant, and equipment $ 659,998 $ 676,770
Schedule Of Useful Lives Of Property, Plant, And Equipment	We depreciate the cost of property, plant, and equipment by the straight-line method over the following estimated useful lives: Land improvements 15 - 40 years Buildings 10 - 46 years Machinery and equipment 3 - 30 years

Intangibles (Net of Amortizat_2

Intangibles (Net of Amortization) and Goodwill (Tables)	12 Months Ended
Intangibles (Net of Amortization) and Goodwill (Tables)	Dec. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule Of Intangible Assets and Goodwill	The gross carrying amount and accumulated amortization of each type of intangible asset and goodwill are presented in the table below. December 31, 2022 2021 (in thousands) Gross Accumulated Gross Accumulated Amortizing intangible assets Formulas and technology $ 6,200 $ 5,683 $ 6,200 $ 4,650 Contract 2,000 1,200 2,000 1,000 Customer base 5,440 4,350 5,440 4,160 Goodwill 123,662 123,922 $ 137,302 $ 11,233 $ 137,562 $ 9,810 Aggregate amortization expense $ 1,423 $ 2,156
Schedule Of Estimated Annual Amortization Expense Related To Intangible Assets	Estimated annual amortization expense related to our intangible assets for the next five years is expected to be (in thousands): 2023 $ 907 2024 390 2025 390 2026 390 2027 190

Deferred Charges and Other As_2

Deferred Charges and Other Assets (Tables)	12 Months Ended
Deferred Charges and Other Assets (Tables)	Dec. 31, 2022
Other Assets, Noncurrent [Abstract]
Schedule Of Deferred Charges and Other Assets	December 31, (in thousands) 2022 2021 Finance lease right-of-use assets $ 36,893 $ 39,590 Deferred income tax assets 3,575 5,318 Asbestos insurance receivables 2,994 3,429 Deferred financing costs, net of amortization 1,095 1,601 Deposit on future leased plant and equipment 12,063 0 Other 7,005 4,797 $ 63,625 $ 54,735

Accrued Expenses (Tables)

Accrued Expenses (Tables)	12 Months Ended
Accrued Expenses (Tables)	Dec. 31, 2022
Accrued Liabilities, Current [Abstract]
Schedule Of Accrued Expenses	December 31, (in thousands) 2022 2021 Employee benefits, payroll, and related taxes $ 36,878 $ 35,607 Customer rebates 27,752 25,505 Taxes other than income and payroll 3,715 4,514 Interest on long-term debt 8,710 8,531 Other 12,453 10,946 $ 89,508 $ 85,103

Long-term Debt (Tables)

Long-term Debt (Tables)	12 Months Ended
Long-term Debt (Tables)	Dec. 31, 2022
Debt Disclosure [Abstract]
Schedule Of Long-Term Debt	December 31, (in thousands) 2022 2021 Senior notes - 2.70% due 2031 (net of related deferred financing costs) $ 392,737 $ 391,853 Senior notes - 3.78% due 2029 250,000 250,000 Senior notes - 4.10% due 2022 (net of related deferred financing costs) 0 349,434 Revolving credit facility 361,000 148,000 1,003,737 1,139,287 Less: Current maturity of 4.10% senior notes 0 349,434 $ 1,003,737 $ 789,853

Other Noncurrent Liabilities (T

Other Noncurrent Liabilities (Tables)	12 Months Ended
Other Noncurrent Liabilities (Tables)	Dec. 31, 2022
Other Liabilities, Noncurrent [Abstract]
Schedule Of Other Noncurrent Liabilities	December 31, (in thousands) 2022 2021 Deferred income tax liabilities $ 61,993 $ 89,438 Employee benefits 58,974 86,542 Finance lease liabilities 22,433 25,044 Environmental remediation 9,454 9,370 Asbestos litigation reserve 5,354 6,515 Deemed repatriation of earnings 2,956 2,956 Other 8,655 8,911 $ 169,819 $ 228,776

Stock-based Compensation (Table

Stock-based Compensation (Tables)	12 Months Ended
Stock-based Compensation (Tables)	Dec. 31, 2022
Share-Based Payment Arrangement, Noncash Expense [Abstract]
Schedule of Restricted Stock and Restricted Stock Unit Activity	A summary of activity during 2022 related to NewMarket’s restricted stock and restricted stock units (stock awards) is presented below in whole shares: Number of Shares Weighted Average Grant-Date Fair Value Unvested stock awards at January 1, 2022 27,644 $ 415.18 Granted in 2022 8,593 312.49 Vested in 2022 0 0.00 Forfeited in 2022 (1,825) 406.00 Unvested stock awards at December 31, 2022 34,412 390.02

Leases (Tables)

Leases (Tables)	12 Months Ended
Leases (Tables)	Dec. 31, 2022
Leases [Abstract]
Components of Lease Expense	The components of lease cost were as follows: Years Ended December 31, (in thousands) 2022 2021 2020 Operating lease cost $ 18,573 $ 18,343 $ 17,371 Finance lease cost: Amortization of assets 2,771 2,795 3,047 Interest on lease liabilities 712 517 417 Short-term lease cost 6,246 6,607 4,665 Variable lease cost 8,152 6,364 4,579 Total lease cost $ 36,454 $ 34,626 $ 30,079
Lessee Leases Table Text Block	Supplemental balance sheet information related to leases was as follows: December 31, (in thousands) Balance Sheet Classification 2022 2021 Operating leases Right-of-use assets Operating lease right-of-use assets $ 62,417 $ 68,402 Current liability Operating lease liabilities $ 15,569 $ 15,709 Noncurrent liability Operating lease liabilities-noncurrent 46,968 52,591 $ 62,537 $ 68,300 Finance leases Right-of-use assets Deferred charges and other assets $ 36,893 $ 39,590 Current liability Other current liabilities $ 2,706 $ 2,828 Noncurrent liability Other noncurrent liabilities 22,433 25,044 $ 25,139 $ 27,872 December 31, 2022 2021 2020 Weighted average remaining lease term (in years) Operating leases 12 12 13 Finance leases 15 16 10 Weighted average incremental borrowing rate Operating leases 3.21 % 3.02 % 3.33 % Finance leases 2.72 % 2.74 % 3.05 % Supplemental cash flow information related to leases was as follows: Years Ended December 31, (in thousands) 2022 2021 2020 Cash paid for amounts included in the measurement of lease liabilities Operating cash flows from operating leases $ 18,632 $ 18,296 $ 17,563 Operating cash flows from finance leases 712 517 417 Financing cash flows from finance leases 2,834 2,841 3,031 Right-of-use assets obtained in exchange for new lease obligations Operating leases $ 12,333 $ 25,035 $ 17,694 Finance leases 84 31,612 982
Lessee, Operating Lease, Liability, Maturity	Maturities of lease liabilities at December 31, 2022 were as follows: (in thousands) Operating Leases Finance Leases 2023 $ 17,151 $ 3,348 2024 12,166 3,304 2025 10,129 3,273 2026 6,851 3,245 2027 4,367 3,229 Thereafter 29,608 11,813 Total lease payments 80,272 28,212 Less: imputed interest 17,735 3,073 Total lease obligations $ 62,537 $ 25,139
Finance Lease, Liability, Fiscal Year Maturity	Maturities of lease liabilities at December 31, 2022 were as follows: (in thousands) Operating Leases Finance Leases 2023 $ 17,151 $ 3,348 2024 12,166 3,304 2025 10,129 3,273 2026 6,851 3,245 2027 4,367 3,229 Thereafter 29,608 11,813 Total lease payments 80,272 28,212 Less: imputed interest 17,735 3,073 Total lease obligations $ 62,537 $ 25,139

Pension Plans and Other Postr_2

Pension Plans and Other Postretirement Benefits (Tables)	12 Months Ended
Pension Plans and Other Postretirement Benefits (Tables)	Dec. 31, 2022
Retirement Benefits [Abstract]
Schedule of Net Periodic Benefit Cost (Income)	The components of net periodic pension and postretirement benefit cost (income), as well as other amounts recognized in other comprehensive income (loss), are shown below. Years Ended December 31, Pension Benefits Postretirement Benefits (in thousands) 2022 2021 2020 2022 2021 2020 Net periodic benefit cost (income) Service cost $ 18,935 $ 19,316 $ 16,544 $ 1,093 $ 1,079 $ 912 Interest cost 13,478 13,018 13,771 1,163 1,158 1,340 Expected return on plan assets (43,765) (38,675) (37,226) (790) (907) (938) Amortization of prior service cost (credit) 271 271 271 (3,028) (3,028) (3,028) Amortization of actuarial net (gain) loss 1,988 5,708 4,674 51 36 0 Net periodic benefit cost (income) (9,093) (362) (1,966) (1,511) (1,662) (1,714) Other changes in plan assets and benefit obligations recognized in other comprehensive income (loss) Actuarial net (gain) loss (17,083) (79,688) (4,933) (12,445) (257) 2,410 Prior service cost (credit) 86 (35) 65 0 0 0 Amortization of actuarial net gain (loss) (1,988) (5,708) (4,674) (51) (36) 0 Amortization of prior service (cost) credit (271) (271) (271) 3,028 3,028 3,028 Total recognized in other comprehensive income (loss) (19,256) (85,702) (9,813) (9,468) 2,735 5,438 Total recognized in net periodic benefit cost (income) and other comprehensive income (loss) $ (28,349) $ (86,064) $ (11,779) $ (10,979) $ 1,073 $ 3,724 The components of net periodic pension cost (income), as well as other amounts recognized in other comprehensive income (loss), for these foreign defined benefit pension plans are shown below. Years Ended December 31, (in thousands) 2022 2021 2020 Net periodic benefit cost (income) Service cost $ 8,546 $ 10,260 $ 8,544 Interest cost 4,105 3,305 3,866 Expected return on plan assets (9,827) (10,659) (9,729) Amortization of prior service cost (credit) 137 152 (43) Amortization of actuarial net (gain) loss 630 3,595 1,420 Net periodic benefit cost (income) 3,591 6,653 4,058 Other changes in plan assets and benefit obligations recognized in other comprehensive income (loss) Actuarial net (gain) loss (41,108) (38,259) 33,816 Prior service cost (credit) 0 0 0 Amortization of actuarial net gain (loss) (630) (3,595) (1,420) Amortization of prior service (cost) credit (137) (152) 43 Total recognized in other comprehensive income (loss) (41,875) (42,006) 32,439 Total recognized in net periodic benefit cost (income) and other comprehensive income (loss) $ (38,284) $ (35,353) $ 36,497
Schedule of Amounts Recognized in Other Comprehensive Income (Loss)	The components of net periodic pension and postretirement benefit cost (income), as well as other amounts recognized in other comprehensive income (loss), are shown below. Years Ended December 31, Pension Benefits Postretirement Benefits (in thousands) 2022 2021 2020 2022 2021 2020 Net periodic benefit cost (income) Service cost $ 18,935 $ 19,316 $ 16,544 $ 1,093 $ 1,079 $ 912 Interest cost 13,478 13,018 13,771 1,163 1,158 1,340 Expected return on plan assets (43,765) (38,675) (37,226) (790) (907) (938) Amortization of prior service cost (credit) 271 271 271 (3,028) (3,028) (3,028) Amortization of actuarial net (gain) loss 1,988 5,708 4,674 51 36 0 Net periodic benefit cost (income) (9,093) (362) (1,966) (1,511) (1,662) (1,714) Other changes in plan assets and benefit obligations recognized in other comprehensive income (loss) Actuarial net (gain) loss (17,083) (79,688) (4,933) (12,445) (257) 2,410 Prior service cost (credit) 86 (35) 65 0 0 0 Amortization of actuarial net gain (loss) (1,988) (5,708) (4,674) (51) (36) 0 Amortization of prior service (cost) credit (271) (271) (271) 3,028 3,028 3,028 Total recognized in other comprehensive income (loss) (19,256) (85,702) (9,813) (9,468) 2,735 5,438 Total recognized in net periodic benefit cost (income) and other comprehensive income (loss) $ (28,349) $ (86,064) $ (11,779) $ (10,979) $ 1,073 $ 3,724 The components of net periodic pension cost (income), as well as other amounts recognized in other comprehensive income (loss), for these foreign defined benefit pension plans are shown below. Years Ended December 31, (in thousands) 2022 2021 2020 Net periodic benefit cost (income) Service cost $ 8,546 $ 10,260 $ 8,544 Interest cost 4,105 3,305 3,866 Expected return on plan assets (9,827) (10,659) (9,729) Amortization of prior service cost (credit) 137 152 (43) Amortization of actuarial net (gain) loss 630 3,595 1,420 Net periodic benefit cost (income) 3,591 6,653 4,058 Other changes in plan assets and benefit obligations recognized in other comprehensive income (loss) Actuarial net (gain) loss (41,108) (38,259) 33,816 Prior service cost (credit) 0 0 0 Amortization of actuarial net gain (loss) (630) (3,595) (1,420) Amortization of prior service (cost) credit (137) (152) 43 Total recognized in other comprehensive income (loss) (41,875) (42,006) 32,439 Total recognized in net periodic benefit cost (income) and other comprehensive income (loss) $ (38,284) $ (35,353) $ 36,497
Schedule of Changes in the Plans' Benefit Obligations and Assets	Changes in the plans’ benefit obligations and assets follow. December 31, Pension Benefits Postretirement Benefits (in thousands) 2022 2021 2022 2021 Change in benefit obligation Benefit obligation at beginning of year $ 478,809 $ 457,721 $ 41,348 $ 41,707 Service cost 18,935 19,316 1,093 1,079 Interest cost 13,478 13,018 1,163 1,158 Actuarial net (gain) loss (166,409) 3,217 (12,064) (141) Plan amendment 86 0 0 0 Benefits paid (14,527) (14,463) (2,626) (2,455) Benefit obligation at end of year 330,372 478,809 28,914 41,348 Change in plan assets Fair value of plan assets at beginning of year 663,193 553,171 20,972 21,372 Actual return on plan assets (105,560) 121,615 1,171 1,022 Employer contributions 2,434 2,870 1,217 1,033 Benefits paid (14,527) (14,463) (2,626) (2,455) Fair value of plan assets at end of year 545,540 663,193 20,734 20,972 Funded status $ 215,168 $ 184,384 $ (8,180) $ (20,376) Amounts recognized in the Consolidated Balance Sheets Noncurrent assets $ 244,210 $ 223,002 $ 0 $ 0 Current liabilities (2,834) (2,799) (1,086) (1,058) Noncurrent liabilities (26,208) (35,819) (7,094) (19,318) $ 215,168 $ 184,384 $ (8,180) $ (20,376) Amounts recognized in accumulated other comprehensive loss Actuarial net (gain) loss $ (40,813) $ (21,742) $ (7,811) $ 4,686 Prior service cost (credit) 145 330 (13,561) (16,591) $ (40,668) $ (21,412) $ (21,372) $ (11,905) Changes in the benefit obligations and assets of the foreign defined benefit pension plans follow. December 31, (in thousands) 2022 2021 Change in benefit obligation Benefit obligation at beginning of year $ 235,347 $ 262,589 Service cost 8,546 10,260 Interest cost 4,105 3,305 Employee contributions 693 771 Actuarial net (gain) loss (87,076) (31,254) Benefits paid (5,403) (5,832) Foreign currency translation (20,412) (4,492) Benefit obligation at end of year 135,800 235,347 Change in plan assets Fair value of plan assets at beginning of year 230,389 212,617 Actual return on plan assets (34,748) 19,216 Employer contributions 5,981 6,543 Employee contributions 693 771 Benefits paid (5,403) (5,832) Foreign currency translation (22,364) (2,926) Fair value of plan assets at end of year 174,548 230,389 Funded status $ 38,748 $ (4,958) Amounts recognized in the Consolidated Balance Sheets Noncurrent assets $ 58,374 $ 19,602 Current liabilities (321) (330) Noncurrent liabilities (19,305) (24,230) $ 38,748 $ (4,958) Amounts recognized in accumulated other comprehensive loss Actuarial net (gain) loss $ 1,706 $ 43,444 Prior service cost (credit) 532 669 $ 2,238 $ 44,113
Schedule of Amounts Recognized in the Consolidated Balance Sheets	Changes in the plans’ benefit obligations and assets follow. December 31, Pension Benefits Postretirement Benefits (in thousands) 2022 2021 2022 2021 Change in benefit obligation Benefit obligation at beginning of year $ 478,809 $ 457,721 $ 41,348 $ 41,707 Service cost 18,935 19,316 1,093 1,079 Interest cost 13,478 13,018 1,163 1,158 Actuarial net (gain) loss (166,409) 3,217 (12,064) (141) Plan amendment 86 0 0 0 Benefits paid (14,527) (14,463) (2,626) (2,455) Benefit obligation at end of year 330,372 478,809 28,914 41,348 Change in plan assets Fair value of plan assets at beginning of year 663,193 553,171 20,972 21,372 Actual return on plan assets (105,560) 121,615 1,171 1,022 Employer contributions 2,434 2,870 1,217 1,033 Benefits paid (14,527) (14,463) (2,626) (2,455) Fair value of plan assets at end of year 545,540 663,193 20,734 20,972 Funded status $ 215,168 $ 184,384 $ (8,180) $ (20,376) Amounts recognized in the Consolidated Balance Sheets Noncurrent assets $ 244,210 $ 223,002 $ 0 $ 0 Current liabilities (2,834) (2,799) (1,086) (1,058) Noncurrent liabilities (26,208) (35,819) (7,094) (19,318) $ 215,168 $ 184,384 $ (8,180) $ (20,376) Amounts recognized in accumulated other comprehensive loss Actuarial net (gain) loss $ (40,813) $ (21,742) $ (7,811) $ 4,686 Prior service cost (credit) 145 330 (13,561) (16,591) $ (40,668) $ (21,412) $ (21,372) $ (11,905) Changes in the benefit obligations and assets of the foreign defined benefit pension plans follow. December 31, (in thousands) 2022 2021 Change in benefit obligation Benefit obligation at beginning of year $ 235,347 $ 262,589 Service cost 8,546 10,260 Interest cost 4,105 3,305 Employee contributions 693 771 Actuarial net (gain) loss (87,076) (31,254) Benefits paid (5,403) (5,832) Foreign currency translation (20,412) (4,492) Benefit obligation at end of year 135,800 235,347 Change in plan assets Fair value of plan assets at beginning of year 230,389 212,617 Actual return on plan assets (34,748) 19,216 Employer contributions 5,981 6,543 Employee contributions 693 771 Benefits paid (5,403) (5,832) Foreign currency translation (22,364) (2,926) Fair value of plan assets at end of year 174,548 230,389 Funded status $ 38,748 $ (4,958) Amounts recognized in the Consolidated Balance Sheets Noncurrent assets $ 58,374 $ 19,602 Current liabilities (321) (330) Noncurrent liabilities (19,305) (24,230) $ 38,748 $ (4,958) Amounts recognized in accumulated other comprehensive loss Actuarial net (gain) loss $ 1,706 $ 43,444 Prior service cost (credit) 532 669 $ 2,238 $ 44,113
Schedule of Plans With the Benefit Obligation in Excess of the Fair Market Value of Plan Assets	The table below shows selected information on domestic pension and postretirement benefit plans. December 31, (in thousands) 2022 2021 Pension plans with the accumulated benefit obligation in excess of the fair market value of plan assets Accumulated benefit obligation $ 28,838 $ 38,161 Fair market value of plan assets 0 0 Pension plans with the projected benefit obligation in excess of the fair market value of plan assets Projected benefit obligation 29,042 38,618 Fair market value of plan assets 0 0 Postretirement benefit plans with the accumulated postretirement benefit obligation in excess of the fair market value of plan assets Accumulated postretirement benefit obligation 17,782 25,323 Fair market value of plan assets 0 0 The table below shows selected information on foreign pension plans. December 31, (in thousands) 2022 2021 Pension plans with the accumulated benefit obligation in excess of the fair market value of plan assets Accumulated benefit obligation $ 22,625 $ 26,415 Fair market value of plan assets 13,072 13,110 Pension plans with the projected benefit obligation in excess of the fair market value of plan assets Projected benefit obligation 32,699 37,670 Fair market value of plan assets 13,072 13,110
Schedule of Assumptions to Calculate the Results of Our Retirement Plans	We used the following assumptions to calculate the results of our retirement plans: Pension Benefits Postretirement Benefits 2022 2021 2020 2022 2021 2020 Weighted-average assumptions used to determine net periodic benefit cost (income) for years ended December 31, Discount rate 2.875 % 2.875 % 3.50 % 2.875 % 2.875 % 3.50 % Expected long-term rate of return on plan assets 8.00 % 8.00 % 8.50 % 4.00 % 4.50 % 4.50 % Rate of projected compensation increase 3.50 % 3.50 % 3.50 % Weighted-average assumptions used to determine benefit obligations at December 31, Discount rate 5.625 % 2.875 % 2.875 % 5.625 % 2.875 % 2.875 % Rate of projected compensation increase 3.50 % 3.50 % 3.50 % 2022 2021 2020 Weighted-average assumptions used to determine net periodic benefit cost (income) for the years ended December 31, Discount rate 1.91 % 1.14 % 1.81 % Expected long-term rate of return on plan assets 4.59 % 4.95 % 5.23 % Rate of projected compensation increase 4.07 % 3.94 % 3.96 % Weighted-average assumptions used to determine benefit obligations at December 31, Discount rate 4.61 % 1.91 % 1.14 % Rate of projected compensation increase 3.55 % 4.07 % 3.94 %
Schedule of Fair Value of Pension and Postretirement Benefit Plans Assets	The following table provides information on the fair value of our pension and postretirement benefit plans assets, as well as the related level within the fair value hierarchy. Investments that are measured at fair value using the net asset value per share (or its equivalent) practical expedient have not been classified by level in the fair value hierarchy. December 31, 2022 December 31, 2021 Fair Value Measurements Using Fair Value Measurements Using (in thousands) Fair Value Level 1 Level 2 Level 3 Fair Value Level 1 Level 2 Level 3 Pension Plans Equity securities: U. S. companies $ 417,687 $ 417,687 $ 0 $ 0 $ 490,775 $ 490,775 $ 0 $ 0 International companies 19,022 19,022 0 0 19,762 19,762 0 0 Cash and cash equivalents 18,979 18,979 0 0 12,451 12,451 0 0 Pooled investment funds: Fixed income securities—mutual funds 29,838 29,838 0 0 18,345 18,345 0 0 International equities—mutual fund 0 0 0 0 21,020 21,020 0 0 Common collective trusts measured at net asset value 60,014 100,840 $ 545,540 $ 485,526 $ 0 $ 0 $ 663,193 $ 562,353 $ 0 $ 0 Postretirement Plans Insurance contract $ 20,734 $ 0 $ 20,734 $ 0 $ 20,972 $ 0 $ 20,972 $ 0 The following table provides information on the fair value of our foreign pension plans assets, as well as the related level within the fair value hierarchy. Investments that are measured at fair value using net asset value per share (or its equivalent) have not been classified by level in the fair value hierarchy. December 31, 2022 December 31, 2021 Fair Value Measurements Using Fair Value Measurements Using (in thousands) Fair Value Level 1 Level 2 Level 3 Fair Value Level 1 Level 2 Level 3 Insurance contract $ 11,199 $ 0 $ 11,199 $ 0 $ 11,223 $ 0 $ 11,223 $ 0 Equity securities—international companies 492 492 0 0 626 626 0 0 Debt securities 734 734 0 0 438 438 0 0 Pooled investment funds—mutual funds 647 647 0 0 822 822 0 0 Cash and cash equivalents 384 384 0 0 755 755 0 0 Pooled investment funds (measured at net asset value): Equity securities—U.S. companies 0 16,596 Equity securities—international companies 76,177 75,931 Debt securities 49,494 81,224 Diversified growth funds 35,421 42,774 $ 174,548 $ 2,257 $ 11,199 $ 0 $ 230,389 $ 2,641 $ 11,223 $ 0
Schedule of Expected Benefit Payments	The expected benefit payments for the next ten years are as follows. (in thousands) Expected Pension Expected 2023 $ 15,574 $ 2,249 2024 16,626 2,107 2025 17,573 2,008 2026 18,469 1,932 2027 19,445 1,866 2028 through 2032 112,278 9,122 (in thousands) Expected Pension 2023 $ 6,649 2024 7,133 2025 5,606 2026 5,726 2027 6,381 2028 through 2032 38,082

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
Income Taxes (Tables)	Dec. 31, 2022
Income Tax Disclosure [Abstract]
Schedule of Income Before Income Tax Expense	Our income before income tax expense, as well as our provision for income taxes is shown in the table below. Years Ended December 31, (in thousands) 2022 2021 2020 Income before income tax expense Domestic $ 170,785 $ 97,245 $ 149,791 Foreign 176,949 150,306 181,496 $ 347,734 $ 247,551 $ 331,287 Income tax expense Current income taxes Federal $ 57,778 $ 13,166 $ 14,861 State 12,515 7,639 6,106 Foreign 40,548 33,860 32,198 110,841 54,665 53,165 Deferred income taxes Federal (34,088) 1,232 4,498 State (8,491) 38 1,090 Foreign (66) 708 1,966 (42,645) 1,978 7,554 Total income tax expense $ 68,196 $ 56,643 $ 60,719
Schedule of Provision for Income Taxes	Our income before income tax expense, as well as our provision for income taxes is shown in the table below. Years Ended December 31, (in thousands) 2022 2021 2020 Income before income tax expense Domestic $ 170,785 $ 97,245 $ 149,791 Foreign 176,949 150,306 181,496 $ 347,734 $ 247,551 $ 331,287 Income tax expense Current income taxes Federal $ 57,778 $ 13,166 $ 14,861 State 12,515 7,639 6,106 Foreign 40,548 33,860 32,198 110,841 54,665 53,165 Deferred income taxes Federal (34,088) 1,232 4,498 State (8,491) 38 1,090 Foreign (66) 708 1,966 (42,645) 1,978 7,554 Total income tax expense $ 68,196 $ 56,643 $ 60,719
Reconciliation Of U.S. Federal Statutory Rate To Effective Income Tax Rate	The reconciliation of the U.S. federal statutory rate to the effective income tax rate follows. % of Income Before Income Tax Expense 2022 2021 2020 Federal statutory rate 21.0 % 21.0 % 21.0 % State taxes, net of federal tax 0.9 2.4 1.7 Foreign operations 1.4 2.4 0.7 Research tax credit (1.6) (2.2) (1.7) Foreign-derived intangible tax benefit (3.0) (0.7) (0.4) Uncertain tax positions 0.3 (0.1) (1.7) Taxes applicable to prior years (0.1) (0.4) (1.4) Other items and adjustments 0.7 0.5 0.1 Effective income tax rate 19.6 % 22.9 % 18.3 %
Schedule of Deferred Income Tax Assets and Liabilities	Our deferred income tax assets and liabilities follow. December 31, (in thousands) 2022 2021 Deferred income tax assets Capitalized research expenses $ 53,249 $ 15,708 Lease liabilities 11,868 12,775 Operating loss and credit carryforwards 15,336 12,746 Foreign currency translation adjustments 5,261 4,054 Other 14,159 11,027 Gross deferred income tax assets 99,873 56,310 Valuation allowance (13,012) (12,219) Total deferred income tax assets 86,861 44,091 Deferred income tax liabilities Depreciation and amortization 78,058 79,023 Future employee benefits 52,446 32,253 Lease assets 12,174 12,790 Other 2,601 4,145 Total deferred income tax liabilities 145,279 128,211 Net deferred income tax (liabilities) assets $ (58,418) $ (84,120)
Schedule of Reconciliation Of Unrecognized Tax Benefits	A reconciliation of the beginning and ending balances of the unrecognized tax benefits from uncertain positions is as follows: December 31, (in thousands) 2022 2021 2020 Balance at beginning of year $ 6,374 $ 6,905 $ 13,543 Increases for tax positions of prior years 1,677 0 363 Increases for tax positions of the current year 809 698 824 Settlements 0 (247) 0 Lapses of statutes (981) (982) (7,825) Balance at end of year $ 7,879 $ 6,374 $ 6,905

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	12 Months Ended
Fair Value Measurements (Tables)	Dec. 31, 2022
Fair Value Disclosures [Abstract]
Estimated Fair Value Of Long-Term Debt	December 31, 2022 December 31, 2021 (in thousands) Carrying Fair Carrying Fair Long-term debt, including current maturities $ 1,003,737 $ 906,891 $ 1,139,287 $ 1,178,066

Commitments and Contingencies (

Commitments and Contingencies (Tables)	12 Months Ended
Commitments and Contingencies (Tables)	Dec. 31, 2022
Commitments and Contingencies Disclosure [Abstract]
Future Payments for Purchase Obligations	Future payments for purchase obligations as of December 31, 2022 are (in thousands): 2023 $ 83,038 2024 27,634 2025 3,634 2026 3,001 2027 2,959 After 2027 6,875

Other Comprehensive Income (L_2

Other Comprehensive Income (Loss) and Accumulated Other Comprehensive Loss (Tables)	12 Months Ended
	Dec. 31, 2022
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Schedule of Components of Accumulated Other Comprehensive Loss, Net of Tax	following: (in thousands) Pension Plans Foreign Currency Translation Adjustments Accumulated Other Balance at December 31, 2019 $ (69,795) $ (92,953) $ (162,748) Other comprehensive income (loss) before reclassifications (25,490) 12,560 (12,930) Amounts reclassified from accumulated other comprehensive loss (a) 2,514 0 2,514 Other comprehensive income (loss) (22,976) 12,560 (10,416) Balance at December 31, 2020 (92,771) (80,393) (173,164) Other comprehensive income (loss) before reclassifications 89,194 (3,356) 85,838 Amounts reclassified from accumulated other comprehensive loss (a) 5,099 0 5,099 Other comprehensive income (loss) 94,293 (3,356) 90,937 Balance at December 31, 2021 1,522 (83,749) (82,227) Other comprehensive income (loss) before reclassifications 53,019 (42,808) 10,211 Amounts reclassified from accumulated other comprehensive loss (a) 21 0 21 Other comprehensive income (loss) 53,040 (42,808) 10,232 Balance at December 31, 2022 $ 54,562 $ (126,557) $ (71,995) (a) The pension plan and other postretirement benefit components of accumulated other comprehensive loss are included in the computation of net periodic benefit cost (income). See Note 18 for further information.

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Summary Of Significant Accounting Policies [Line Items]
Foreign currency transaction adjustments	$ (4)	$ (6)	$ (3)
Contributions by employer for employee savings plans	$ 7	$ 7	$ 7
Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Cash and cash equivalents maturity, days	90 days

Net Sales (Narrative) (Details)

Net Sales (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
Net Sales (Narrative) (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Revenue from Contract with Customer [Abstract]
Revenue Recognized in the Current Period From Funds Collected in Advance from Customers in Earlier Periods	$ 1	$ 2	$ 1
Change in Net Sales Related To Adjustments To Rebates Or Business Development Fund Recognized in Revenue in a Prior Period	2	4	$ 2
Customer rebates	28	26
Business Development Fund	0.4	2
Customer Prepayment Current	$ 1	$ 1

Net Sales (Schedule of Net Sale

Net Sales (Schedule of Net Sales by Geographical Area) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Disaggregation of Revenue [Line Items]
Net sales	$ 2,764,799	$ 2,356,110	$ 2,010,931
United States
Disaggregation of Revenue [Line Items]
Net sales	974,963	780,278	650,654
China
Disaggregation of Revenue [Line Items]
Net sales	181,283	255,219	213,788
Europe, Middle East, Africa, India
Disaggregation of Revenue [Line Items]
Net sales	807,782	708,675	651,645
Asia Pacific, except China
Disaggregation of Revenue [Line Items]
Net sales	435,684	325,621	279,847
Other foreign
Disaggregation of Revenue [Line Items]
Net sales	$ 365,087	$ 286,317	$ 214,997

Earnings Per Share (Details)

Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Earnings Per Share [Abstract]
Anti-dilutive shares that were excluded from the calculation of diluted earnings per share (in shares)	33,055	26,572	19,951
Earnings per share numerator:
Net income attributable to common shareholders before allocation of earnings to participating securities	$ 279,538	$ 190,908	$ 270,568
Earnings allocated to participating securities	(876)	(462)	(448)
Net income attributable to common shareholders after allocation of earnings to participating securities	$ 278,662	$ 190,446	$ 270,120
Earnings per share denominator:
Weighted Average Number of Shares Outstanding, Basic	10,035,000	10,756,000	10,961,000
Weighted Average Number of Shares Outstanding, Diluted	10,035,000	10,756,000	10,961,000
Earnings Per Share, Basic	$ 27.77	$ 17.71	$ 24.64
Earnings Per Share, Diluted	$ 27.77	$ 17.71	$ 24.64

Segment and Geographic Area I_3

Segment and Geographic Area Information (Schedule Of Net Sales And Operating Profit By Segment) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Net sales	$ 2,764,799	$ 2,356,110	$ 2,010,931
Segment operating profit	355,139	257,782	311,802
Corporate, general, and administrative expenses	(145,106)	(145,973)	(142,863)
Interest and financing expenses, net	(35,202)	(34,218)	(26,328)
Loss on early extinguishment of debt	(7,545)	0	0
Other income (expense), net	35,342	23,987	45,813
Income before income tax expense	347,734	247,551	331,287
Operating Segments [Member]
Segment Reporting Information [Line Items]
Segment operating profit	376,462	279,530	333,141
Operating Segments [Member] \| Petroleum Additives [Member]
Segment Reporting Information [Line Items]
Net sales	2,754,310	2,343,942	2,001,567
Segment operating profit	378,244	281,055	333,241
Operating Segments [Member] \| All Other [Member]
Segment Reporting Information [Line Items]
Net sales	10,489	12,168	9,364
Segment operating profit	(1,782)	(1,525)	(100)
Operating Segments [Member] \| Lubricant additives [Member] \| Petroleum Additives [Member]
Segment Reporting Information [Line Items]
Net sales	2,342,622	1,998,772	1,686,649
Operating Segments [Member] \| Fuel additives [Member] \| Petroleum Additives [Member]
Segment Reporting Information [Line Items]
Net sales	411,688	345,170	314,918
Corporate [Member]
Segment Reporting Information [Line Items]
Corporate, general, and administrative expenses	(21,579)	(21,214)	(21,744)
Interest and financing expenses, net	(35,202)	(34,218)	(26,328)
Loss on early extinguishment of debt	(7,545)	0	0
Other income (expense), net	$ 35,598	$ 23,453	$ 46,218

Segment and Geographic Area I_4

Segment and Geographic Area Information (Schedule Of Asset Information By Segment) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Total assets	$ 2,406,818	$ 2,558,436
Cash and cash equivalents	68,712	83,304
Trade and other accounts receivable, net	453,692	391,779
Prepaid expenses and other current assets	38,338	38,633
Property, plant, and equipment, net	659,998	676,770
Prepaid pension cost	302,584	242,604
Deferred charges and other assets	63,625	54,735
Petroleum Additives [Member]
Segment Reporting Information [Line Items]
Total assets	1,929,340	1,752,467
All Other [Member]
Segment Reporting Information [Line Items]
Total assets	18,738	12,602
Operating Segments [Member]
Segment Reporting Information [Line Items]
Total assets	1,948,078	1,765,069
Corporate [Member]
Segment Reporting Information [Line Items]
Cash and cash equivalents	68,712	83,304
Marketable securities	0	375,918
Trade and other accounts receivable, net	2,220	11,884
Prepaid expenses and other current assets	38,338	38,633
Property, plant, and equipment, net	32,191	30,352
Prepaid pension cost	302,584	242,604
Lease right-of-use assets	26	105
Deferred charges and other assets	$ 14,669	$ 10,567

Segment and Geographic Area I_5

Segment and Geographic Area Information (Schedule of Additions to Long-lived Assets and Depreciation and Amortization) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Additions to long-lived assets	$ 68,586	$ 135,581	$ 111,992
Depreciation and amortization	82,285	84,320	84,002
Petroleum Additives [Member]
Segment Reporting Information [Line Items]
Additions to long-lived assets	64,456	134,873	109,536
Depreciation and amortization	78,744	80,495	80,811
All Other [Member]
Segment Reporting Information [Line Items]
Additions to long-lived assets	147	22	3
Depreciation and amortization	51	51	52
Corporate [Member]
Segment Reporting Information [Line Items]
Additions to long-lived assets	3,983	686	2,453
Depreciation and amortization	$ 3,490	$ 3,774	$ 3,139

Segment and Geographic Area I_6

Segment and Geographic Area Information (Schedule of Net Sales by Geographic Area) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Net sales	$ 2,764,799	$ 2,356,110	$ 2,010,931
Total assets	2,406,818	2,558,436
Long-Lived Assets	759,308	784,762
United States
Segment Reporting Information [Line Items]
Net sales	974,963	780,278	650,654
Total assets	990,037	1,255,464
Long-Lived Assets	363,211	360,204
China
Segment Reporting Information [Line Items]
Net sales	181,283	255,219	213,788
Singapore [Member]
Segment Reporting Information [Line Items]
Long-Lived Assets	247,218	263,614
International companies
Segment Reporting Information [Line Items]
Total assets	1,416,781	1,302,972
Europe, Middle East, Africa, India
Segment Reporting Information [Line Items]
Net sales	807,782	708,675	651,645
Asia Pacific, except China
Segment Reporting Information [Line Items]
Net sales	435,684	325,621	279,847
Other foreign
Segment Reporting Information [Line Items]
Net sales	365,087	286,317	$ 214,997
Long-Lived Assets	$ 148,879	$ 160,944

Supplemental Cash Flow Inform_3

Supplemental Cash Flow Information (Schedule Of Cash Flow Information) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash paid during the year for
Interest and financing expenses (net of capitalization)	$ 40,531	$ 30,465	$ 26,148
Income taxes	88,866	67,917	62,328
Supplemental disclosure of non-cash transactions
Non-cash additions to property, plant, and equipment	$ 4,087	$ 4,872	$ 5,106

Marketable Securities (Narrativ

Marketable Securities (Narrative) (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Debt Securities, Trading, and Equity Securities, FV-NI, Cost [Abstract]
Equity Securities, FV-NI, Cost	$ 0	$ 334
Debt Securities, Trading, Amortized Cost	$ 0	$ 50

Marketable Securities Fair valu

Marketable Securities Fair value measurement (Details) - Fair Value, Recurring [Member] $ in Thousands	Dec. 31, 2021 USD ($)
Fair Value
Debt and Equity Securities
Marketable securities	$ 375,918
Fair Value \| Corporate Debt Securities [Member]
Debt and Equity Securities
Corporate bonds	48,727
Fair Value \| Pooled investment funds Mutual funds
Debt and Equity Securities
U.S. government income mutual fund	327,191
Level 1
Debt and Equity Securities
Marketable securities	327,191
Level 1 \| Corporate Debt Securities [Member]
Debt and Equity Securities
Corporate bonds	0
Level 1 \| Pooled investment funds Mutual funds
Debt and Equity Securities
U.S. government income mutual fund	327,191
Level 2
Debt and Equity Securities
Marketable securities	48,727
Level 2 \| Corporate Debt Securities [Member]
Debt and Equity Securities
Corporate bonds	48,727
Level 2 \| Pooled investment funds Mutual funds
Debt and Equity Securities
U.S. government income mutual fund	0
Level 3
Debt and Equity Securities
Marketable securities	0
Level 3 \| Corporate Debt Securities [Member]
Debt and Equity Securities
Corporate bonds	0
Level 3 \| Pooled investment funds Mutual funds
Debt and Equity Securities
U.S. government income mutual fund	$ 0

Trade and Other Accounts Rece_3

Trade and Other Accounts Receivable, Net (Schedule Of Trade And Other Accounts Receivable, Net) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Receivables [Abstract]
Trade receivables	$ 384,636	$ 316,702
Income and other tax receivables	60,745	64,887
Other	8,311	10,190
Trade and other accounts receivable, net	$ 453,692	$ 391,779

Inventories (Narrative) (Detail

Inventories (Narrative) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Inventory [Line Items]
U.S. inventories, LIFO basis	$ 165,000	$ 124,000
LIFO inventories amount below replacement cost	114,000	78,000
Inventories	631,383	498,539
International companies
Inventory [Line Items]
Inventories	$ 451,000	$ 357,000

Inventories (Schedule Of Invent

Inventories (Schedule Of Inventories) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Inventory Disclosure [Abstract]
Finished goods and work-in-process	$ 497,652	$ 393,778
Raw materials	113,484	86,856
Stores, supplies, and other	20,247	17,905
Inventories	$ 631,383	$ 498,539

Prepaid Expenses and Other Cu_3

Prepaid Expenses and Other Current Assets (Schedule Of Prepaid Expenses And Other Current Assets) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Prepaid Expense and Other Assets, Current [Abstract]
Dividend funding	$ 17,850	$ 16,648
Income taxes on intercompany profit	6,925	6,879
Other	13,563	15,106
Prepaid expenses and other current assets	$ 38,338	$ 38,633

Property, Plant, and Equipmen_3

Property, Plant, and Equipment, at Cost (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment [Abstract]
Depreciation expense	$ 60	$ 61	$ 61

Property, Plant, and Equipmen_4

Property, Plant, and Equipment, at Cost (Schedule Of Property, Plant, And Equipment, At Cost) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Property, Plant and Equipment, at Cost [Line Items]
Property, Plant and Equipment, Gross	$ 1,596,352	$ 1,589,186
Less: accumulated depreciation and amortization	936,354	912,416
Property, plant, and equipment, net	659,998	676,770
Land [Member]
Property, Plant and Equipment, at Cost [Line Items]
Property, Plant and Equipment, Gross	37,088	37,746
Land Improvements
Property, Plant and Equipment, at Cost [Line Items]
Property, Plant and Equipment, Gross	64,061	61,491
Leasehold Improvements [Member]
Property, Plant and Equipment, at Cost [Line Items]
Property, Plant and Equipment, Gross	1,832	1,893
Buildings
Property, Plant and Equipment, at Cost [Line Items]
Property, Plant and Equipment, Gross	183,030	185,216
Machinery and Equipment
Property, Plant and Equipment, at Cost [Line Items]
Property, Plant and Equipment, Gross	1,279,425	1,275,828
Construction in Progress [Member]
Property, Plant and Equipment, at Cost [Line Items]
Property, Plant and Equipment, Gross	$ 30,916	$ 27,012

Property, Plant, and Equipmen_5

Property, Plant, and Equipment, at Cost (Schedule Of Useful Lives Of Property, Plant, And Equipment) (Details)	12 Months Ended
	Dec. 31, 2022
Minimum [Member] \| Land Improvements
Property, Plant and Equipment, at Cost [Line Items]
Property, plant, and equipment, useful lives (in years)	15 years
Minimum [Member] \| Buildings
Property, Plant and Equipment, at Cost [Line Items]
Property, plant, and equipment, useful lives (in years)	10 years
Minimum [Member] \| Machinery and Equipment
Property, Plant and Equipment, at Cost [Line Items]
Property, plant, and equipment, useful lives (in years)	3 years
Maximum [Member] \| Land Improvements
Property, Plant and Equipment, at Cost [Line Items]
Property, plant, and equipment, useful lives (in years)	40 years
Maximum [Member] \| Buildings
Property, Plant and Equipment, at Cost [Line Items]
Property, plant, and equipment, useful lives (in years)	46 years
Maximum [Member] \| Machinery and Equipment
Property, Plant and Equipment, at Cost [Line Items]
Property, plant, and equipment, useful lives (in years)	30 years

Intangibles (Net of Amortizat_3

Intangibles (Net of Amortization) and Goodwill (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Intangibles (net of amortization) and Goodwill [Line Items]
Intangibles (net of amortization) and goodwill	$ 126,069,000	$ 127,752,000
Accumulated Goodwill Impairment	0	0
Amortization of Intangible Assets	$ 1,423,000	$ 2,156,000	$ 3,000,000
Formulas and Technology [Member]
Intangibles (net of amortization) and Goodwill [Line Items]
Estimated economic life, in years	6 years
Contracts [Member]
Intangibles (net of amortization) and Goodwill [Line Items]
Estimated economic life, in years	10 years
Customer Bases [Member]
Intangibles (net of amortization) and Goodwill [Line Items]
Estimated economic life, in years	20 years

Intangibles (Net of Amortizat_4

Intangibles (Net of Amortization) and Goodwill (Schedule Of Information Related To Intangible Assets) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Intangibles (net of amortization) and Goodwill [Line Items]
Amortizing intangible assets, Accumulated Amortization	$ 11,233	$ 9,810
Goodwill, Gross Carrying Amount	123,662	123,922
Amortizing intangible assets and Goodwill, Gross Carrying Amount	137,302	137,562
Aggregate amortization expense	1,423	2,156	$ 3,000
Formulas and Technology [Member]
Intangibles (net of amortization) and Goodwill [Line Items]
Amortizing intangible assets, Gross Carrying Amount	6,200	6,200
Amortizing intangible assets, Accumulated Amortization	5,683	4,650
Contracts [Member]
Intangibles (net of amortization) and Goodwill [Line Items]
Amortizing intangible assets, Gross Carrying Amount	2,000	2,000
Amortizing intangible assets, Accumulated Amortization	1,200	1,000
Customer Bases [Member]
Intangibles (net of amortization) and Goodwill [Line Items]
Amortizing intangible assets, Gross Carrying Amount	5,440	5,440
Amortizing intangible assets, Accumulated Amortization	$ 4,350	$ 4,160

Intangibles (Net of Amortizat_5

Intangibles (Net of Amortization) and Goodwill (Schedule Of Estimated Annual Amortization Expense Related To Intangible Assets) (Details) $ in Thousands	Dec. 31, 2022 USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
2023	$ 907
2024	390
2025	390
2026	390
2027	$ 190

Deferred Charges and Other As_3

Deferred Charges and Other Assets (Schedule Of Deferred Charges And Other Assets) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Mar. 15, 2022	Dec. 31, 2021
Deferred Charges and Other Assets [Line Items]
Finance lease right-of-use assets	$ 36,893		$ 39,590
Deferred income tax assets	3,575		5,318
Asbestos insurance receivables	2,994		3,429
Deferred financing costs, net of amortization	1,095		1,601
Deposit on future leased plant and equipment	12,063		0
Other	7,005		4,797
Deferred charges and other assets	$ 63,625		$ 54,735
4.10% Senior Notes [Member]
Deferred Charges and Other Assets [Line Items]
Senior notes, interest rate		4.10%	4.10%
2.7% Senior Notes [Member]
Deferred Charges and Other Assets [Line Items]
Senior notes, interest rate	2.70%		2.70%

Accrued Expenses (Schedule Of A

Accrued Expenses (Schedule Of Accrued Expenses) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Accrued Liabilities, Current [Abstract]
Employee benefits, payroll, and related taxes	$ 36,878	$ 35,607
Accrued Marketing Costs, Current	27,752	25,505
Taxes other than income and payroll	3,715	4,514
Interest on long-term debt	8,710	8,531
Other	12,453	10,946
Accrued expenses	$ 89,508	$ 85,103

Long-term Debt (Schedule Of Lon

Long-term Debt (Schedule Of Long-Term Debt) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Mar. 15, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Long-term Debt, Noncurrent	$ 1,003,737		$ 789,853
Long-term Debt	1,003,737		1,139,287
Current portion of long-term debt	$ 0		$ 349,434
2.7% Senior Notes [Member]
Debt Instrument [Line Items]
Senior notes, interest rate	2.70%		2.70%
Long-term Debt, Noncurrent	$ 392,737		$ 391,853
3.78% Senior Notes [Member]
Debt Instrument [Line Items]
Senior notes, interest rate	3.78%		3.78%
Long-term Debt, Noncurrent	$ 250,000		$ 250,000
4.10% Senior Notes [Member]
Debt Instrument [Line Items]
Senior notes, interest rate		4.10%	4.10%
Current portion of long-term debt	0		$ 349,434
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Long-term Debt, Noncurrent	$ 361,000		$ 148,000

Long-term Debt (Narrative) (Det

Long-term Debt (Narrative) (Details)		12 Months Ended
Long-term Debt (Narrative) (Details)	Mar. 15, 2022	Dec. 31, 2022 USD ($) maximumNumberOfLeverage	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Mar. 18, 2021 USD ($)	Mar. 05, 2020 USD ($)	Jan. 04, 2017 USD ($)	Dec. 31, 2012 USD ($)	Dec. 20, 2012 USD ($)
Debt Instrument [Line Items]
Loss on early extinguishment of debt		$ 7,545,000	$ 0	$ 0
Payment for Debt Extinguishment or Debt Prepayment Cost		7,099,000	0	0
Long-term Debt, Noncurrent		1,003,737,000	789,853,000
Current portion of long-term debt		0	349,434,000
Payments of Financing Costs		$ 0	$ 3,897,000	1,349,000
2.7% Senior Notes [Member]
Debt Instrument [Line Items]
Principal amount of debt issued					$ 400,000,000
Senior notes, interest rate		2.70%	2.70%
Senior notes issue price					98.763%
Long-term Debt, Noncurrent		$ 392,737,000	$ 391,853,000
Payments of Financing Costs			$ 4,000,000
3.78% Senior Notes [Member]
Debt Instrument [Line Items]
Principal amount of debt issued							$ 250,000,000
Senior notes, interest rate		3.78%	3.78%
Annual principal payments beginning January 4, 2025		$ 50,000,000
Long-term Debt, Noncurrent		250,000,000	$ 250,000,000
4.10% Senior Notes [Member]
Debt Instrument [Line Items]
Principal amount of debt issued									$ 350,000,000
Senior notes, interest rate	4.10%		4.10%
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed	100%
Loss on early extinguishment of debt		7,500,000
Payment for Debt Extinguishment or Debt Prepayment Cost		7,100,000
Write off of Deferred Debt Issuance Cost		400,000
Senior notes issue price									99.83%
Financing costs incurred								$ 5,000,000
Current portion of long-term debt		$ 0	$ 349,434,000
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Financing costs incurred				2,500,000
Maximum borrowing capacity						$ 900,000,000
Increase in aggregate amount of revolving credit facility allowed						425,000,000
Line of Credit Facility Financing Costs Carried Over				1,200,000
Debt Instrument, Term		5 years
Average interest rate during period		3.50%	1.60%
Long-term Debt, Noncurrent		$ 361,000,000	$ 148,000,000
Outstanding letters of credit		2,000,000	2,000,000
Unused portion of revolving credit facility		$ 537,000,000	$ 750,000,000
Payments of Financing Costs				$ 1,300,000
MaximumLeverageRatio \| maximumNumberOfLeverage		3.75
Revolving Credit Facility [Member] \| Letters of Credit [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity						50,000,000
Revolving Credit Facility [Member] \| Multicurrency Borrowings [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity						500,000,000
Revolving Credit Facility [Member] \| Swingline Loans [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity						$ 20,000,000

Other Noncurrent Liabilities (S

Other Noncurrent Liabilities (Schedule Of Other Noncurrent Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Other Liabilities, Noncurrent [Abstract]
Deferred income tax liabilities	$ 61,993	$ 89,438
Employee benefits	58,974	86,542
Finance lease liabilities - noncurrent	22,433	25,044
Environmental remediation	9,454	9,370
Asbestos litigation reserve	5,354	6,515
Deemed repatriation of earnings	2,956	2,956
Other	8,655	8,911
Other noncurrent liabilities	$ 169,819	$ 228,776

Stock-based Compensation (Narra

Stock-based Compensation (Narrative) (Details) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2022 USD ($) director $ / shares shares	Dec. 31, 2021 USD ($) $ / shares	Dec. 31, 2020 USD ($) $ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Incentive stock option, exercise period, maximum, in years	10 years
Maximum number of shares, options, SARs, or stock units granted or awarded in calendar year per participant	200,000
Maximum aggregate number of shares of common stock that may be issued under the Plan	1,000,000
Shares available for grant (in shares)	938,034
Restricted Stock And Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock awards granted (in shares)	8,593
Stock awards weighted average grant date fair value (in dollars per share) \| $ / shares	$ 312.49	$ 392.63	$ 414.33
Fair value of shares vested \| $		$ 0	$ 2
Compensation expense \| $	$ 2	$ 2	$ 2
Unrecognized compensation expense \| $	$ 5
Period for recognition of unrecognized compensation expense, in years	2 years 3 months 18 days
Non-Employee Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock awards granted (in shares)	1,495
Number of non-employee directors \| director	5

Stock-based Compensation (Sched

Stock-based Compensation (Schedule of Restricted Stock And Restricted Stock Unit Activity) (Details) - Restricted Stock And Restricted Stock Units [Member] - $ / shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Number of Shares
Unvested stock awards at January 1,	27,644
Granted	8,593
Vested	0
Forfeited	(1,825)
Unvested stock awards at December 31,	34,412	27,644
Weighted Average Grant-Date Fair Value
Unvested stock awards at January 1,	$ 415.18
Granted	312.49	$ 392.63	$ 414.33
Vested	0
Forfeited	406
Unvested stock awards at December 31,	$ 390.02	$ 415.18

Leases Narrative (Details)

Leases Narrative (Details) $ in Millions	Dec. 31, 2022 USD ($)
Lessee, Lease, Description [Line Items]
Lessee Operating Lease Option to Extend Reasonably Certain	$ 16
Leases not yet commenced that will provide right of use assets	30
Lease commitments that have not yet commenced	$ 18
Minimum [Member]
Lessee, Lease, Description [Line Items]
Lessee, Operating Lease, Remaining Lease Term	1 year
Lessee, Finance Lease, Remaining Lease Term	1 year
Maximum [Member]
Lessee, Lease, Description [Line Items]
Lessee, Operating Lease, Remaining Lease Term	48 years
Lessee, Finance Lease, Remaining Lease Term	48 years

Leases Components of Lease Expe

Leases Components of Lease Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Leases [Abstract]
Operating lease cost	$ 18,573	$ 18,343	$ 17,371
Finance lease cost:
Amortization of assets	2,771	2,795	3,047
Interest on lease liabilities	712	517	417
Short-term lease cost	6,246	6,607	4,665
Variable lease cost	8,152	6,364	4,579
Total lease cost	$ 36,454	$ 34,626	$ 30,079

Leases Supplemental Balance She

Leases Supplemental Balance Sheet Information (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Operating leases:
Operating lease right-of-use assets	$ 62,417	$ 68,402
Operating lease liabilities	15,569	15,709
Operating lease liabilities - noncurrent	46,968	52,591
Total operating lease liabilities	62,537	68,300
Finance leases:
Finance lease right-of-use assets	$ 36,893	$ 39,590
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Deferred charges and other assets	Deferred charges and other assets
Finance lease liability - current	$ 2,706	$ 2,828
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Other current liabilities	Other current liabilities
Finance lease liabilities - noncurrent	$ 22,433	$ 25,044
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other noncurrent liabilities	Other noncurrent liabilities
Total finance lease obligations	$ 25,139	$ 27,872
Weighted average remaining lease term (in years):
Operating leases	12 years	12 years	13 years
Finance leases	15 years	16 years	10 years
Weighted average incremental borrowing rate:
Operating leases	3.21%	3.02%	3.33%
Finance leases	2.72%	2.74%	3.05%

Leases Supplemental Cash Flow a

Leases Supplemental Cash Flow and Other Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 18,632	$ 18,296	$ 17,563
Operating cash flows from finance leases	712	517	417
Financing cash flows from finance leases	2,834	2,841	3,031
Right-of-use assets obtained in exchange for new lease obligations:
Operating leases	12,333	25,035	17,694
Finance leases	$ 84	$ 31,612	$ 982

Leases Maturities of Lease Liab

Leases Maturities of Lease Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Operating Leases
2023	$ 17,151
2024	12,166
2025	10,129
2026	6,851
2027	4,367
Thereafter	29,608
Total lease payments	80,272
Less: imputed interest	17,735
Total operating lease obligations	62,537	$ 68,300
Finance Leases
2023	3,348
2024	3,304
2025	3,273
2026	3,245
2027	3,229
Thereafter	11,813
Total lease payments	28,212
Less: imputed interest	3,073
Total finance lease obligations	$ 25,139	$ 27,872

Pension Plans and Other Postr_3

Pension Plans and Other Postretirement Benefits (Narrative) (Details)		12 Months Ended
	Jan. 01, 2023	Dec. 31, 2022 USD ($) plans	Dec. 31, 2021 USD ($)	Dec. 31, 2020
Pension Benefits \| United States
Defined Benefit Plan Disclosure [Line Items]
Number of pension plans \| plans		4
Defined Benefit Plan, Accumulated Benefit Obligation		$ 296,000,000	$ 411,000,000
Expected long-term rate of return on plan assets		8%	8%	8.50%
Number of business days notice required to make withdrawals		10 days
Estimated contributions to defined benefit plans in next fiscal year		$ 3,000,000
Pension Benefits \| United States \| Expected
Defined Benefit Plan Disclosure [Line Items]
Expected long-term rate of return on plan assets	8%
Pension Benefits \| United States \| Debt Securities \| Minimum
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage for plan assets		3%
Pension Benefits \| United States \| Debt Securities \| Maximum
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage for plan assets		10%
Pension Benefits \| United States \| Equities \| Minimum
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage for plan assets		90%
Pension Benefits \| United States \| Equities \| Maximum
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage for plan assets		97%
Pension Benefits \| United States \| Pooled Investment Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Unfunded Commitments		$ 0
Pension Benefits \| United States \| Cash and cash equivalents \| Minimum
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage for plan assets		1%
Pension Benefits \| United States \| Cash and cash equivalents \| Maximum
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage for plan assets		5%
Pension Benefits \| Foreign Retirement Plans
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Accumulated Benefit Obligation		$ 122,000,000	$ 204,000,000
Expected long-term rate of return on plan assets		4.59%	4.95%	5.23%
Estimated contributions to defined benefit plans in next fiscal year		$ 6,000,000
Pension Benefits \| Foreign Retirement Plans \| Debt Securities \| Pooled Investment Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage for plan assets		36%
Pension Benefits \| Foreign Retirement Plans \| Equities \| Pooled Investment Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage for plan assets		38%
Pension Benefits \| Foreign Retirement Plans \| Insurance contract
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage for plan assets		7%
Pension Benefits \| Foreign Retirement Plans \| Pooled investment funds Diversified growth funds
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage for plan assets		19%
Pension Benefits \| UNITED KINGDOM \| Pooled Investment Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Unfunded Commitments		$ 0
Pension Benefits \| CANADA \| Pooled Investment Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Unfunded Commitments		$ 0
Postretirement Benefits \| United States
Defined Benefit Plan Disclosure [Line Items]
Expected long-term rate of return on plan assets		4%	4.50%	4.50%
Estimated contributions to defined benefit plans in next fiscal year		$ 2,000,000
Postretirement Benefits \| United States \| Expected
Defined Benefit Plan Disclosure [Line Items]
Expected long-term rate of return on plan assets	4%

Pension Plans and Other Postr_4

Pension Plans and Other Postretirement Benefits (Summary Of Components Of Net Periodic Benefit Cost (Income)) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Pension Benefits \| United States
Net periodic benefit cost (income)
Service cost	$ 18,935	$ 19,316	$ 16,544
Interest cost	13,478	13,018	13,771
Expected return on plan assets	(43,765)	(38,675)	(37,226)
Amortization of prior service cost (credit)	271	271	271
Amortization of actuarial net (gain) loss	1,988	5,708	4,674
Net periodic benefit cost (income)	(9,093)	(362)	(1,966)
Other changes in plan assets and benefit obligations recognized in other comprehensive income (loss)
Actuarial net (gain) loss	(17,083)	(79,688)	(4,933)
Prior service cost (credit)	86	(35)	65
Amortization of actuarial net gain (loss)	(1,988)	(5,708)	(4,674)
Amortization of prior service (cost) credit	(271)	(271)	(271)
Total recognized in other comprehensive income (loss)	(19,256)	(85,702)	(9,813)
Total recognized in net periodic benefit cost (income) and other comprehensive income (loss)	(28,349)	(86,064)	(11,779)
Pension Benefits \| Foreign Retirement Plans
Net periodic benefit cost (income)
Service cost	8,546	10,260	8,544
Interest cost	4,105	3,305	3,866
Expected return on plan assets	(9,827)	(10,659)	(9,729)
Amortization of prior service cost (credit)	137	152	(43)
Amortization of actuarial net (gain) loss	630	3,595	1,420
Net periodic benefit cost (income)	3,591	6,653	4,058
Other changes in plan assets and benefit obligations recognized in other comprehensive income (loss)
Actuarial net (gain) loss	(41,108)	(38,259)	33,816
Prior service cost (credit)	0	0	0
Amortization of actuarial net gain (loss)	(630)	(3,595)	(1,420)
Amortization of prior service (cost) credit	(137)	(152)	43
Total recognized in other comprehensive income (loss)	(41,875)	(42,006)	32,439
Total recognized in net periodic benefit cost (income) and other comprehensive income (loss)	(38,284)	(35,353)	36,497
Postretirement Benefits \| United States
Net periodic benefit cost (income)
Service cost	1,093	1,079	912
Interest cost	1,163	1,158	1,340
Expected return on plan assets	(790)	(907)	(938)
Amortization of prior service cost (credit)	(3,028)	(3,028)	(3,028)
Amortization of actuarial net (gain) loss	51	36	0
Net periodic benefit cost (income)	(1,511)	(1,662)	(1,714)
Other changes in plan assets and benefit obligations recognized in other comprehensive income (loss)
Actuarial net (gain) loss	(12,445)	(257)	2,410
Prior service cost (credit)	0	0	0
Amortization of actuarial net gain (loss)	(51)	(36)	0
Amortization of prior service (cost) credit	3,028	3,028	3,028
Total recognized in other comprehensive income (loss)	(9,468)	2,735	5,438
Total recognized in net periodic benefit cost (income) and other comprehensive income (loss)	$ (10,979)	$ 1,073	$ 3,724

Pension Plans and Other Postr_5

Pension Plans and Other Postretirement Benefits (Changes In The Plans' Benefit Obligations And Assets) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Amounts recognized in the Consolidated Balance Sheets
Noncurrent assets	$ 302,584	$ 242,604
Pension Benefits \| United States
Change in benefit obligation
Benefit obligation at beginning of year	478,809	457,721
Service cost	18,935	19,316	$ 16,544
Interest cost	13,478	13,018	13,771
Actuarial net (gain) loss	(166,409)	3,217
Plan amendment	86	0
Benefits paid	(14,527)	(14,463)
Benefit obligation at end of year	330,372	478,809	457,721
Change in plan assets
Fair value of plan assets at beginning of year	663,193	553,171
Actual return on plan assets	(105,560)	121,615
Employer contributions	2,434	2,870
Benefits paid	(14,527)	(14,463)
Fair value of plan assets at end of year	545,540	663,193	553,171
Funded status	215,168	184,384
Amounts recognized in the Consolidated Balance Sheets
Noncurrent assets	244,210	223,002
Current liabilities	(2,834)	(2,799)
Noncurrent liabilities	(26,208)	(35,819)
Amounts recognized in the Consolidated Balance Sheets	215,168	184,384
Amounts recognized in accumulated other comprehensive loss
Actuarial net (gain) loss	(40,813)	(21,742)
Prior service cost (credit)	145	330
Amounts recognized in accumulated other comprehensive loss	(40,668)	(21,412)
Pension Benefits \| Foreign Retirement Plans
Change in benefit obligation
Benefit obligation at beginning of year	235,347	262,589
Service cost	8,546	10,260	8,544
Interest cost	4,105	3,305	3,866
Employee contributions	693	771
Actuarial net (gain) loss	(87,076)	(31,254)
Benefits paid	(5,403)	(5,832)
Foreign currency translation	(20,412)	(4,492)
Benefit obligation at end of year	135,800	235,347	262,589
Change in plan assets
Fair value of plan assets at beginning of year	230,389	212,617
Actual return on plan assets	(34,748)	19,216
Employer contributions	5,981	6,543
Employee contributions	693	771
Benefits paid	(5,403)	(5,832)
Foreign currency translation	(22,364)	(2,926)
Fair value of plan assets at end of year	174,548	230,389	212,617
Funded status	38,748	(4,958)
Amounts recognized in the Consolidated Balance Sheets
Noncurrent assets	58,374	19,602
Current liabilities	(321)	(330)
Noncurrent liabilities	(19,305)	(24,230)
Amounts recognized in the Consolidated Balance Sheets	38,748	(4,958)
Amounts recognized in accumulated other comprehensive loss
Actuarial net (gain) loss	1,706	43,444
Prior service cost (credit)	532	669
Amounts recognized in accumulated other comprehensive loss	2,238	44,113
Postretirement Benefits \| United States
Change in benefit obligation
Benefit obligation at beginning of year	41,348	41,707
Service cost	1,093	1,079	912
Interest cost	1,163	1,158	1,340
Actuarial net (gain) loss	(12,064)	(141)
Plan amendment	0	0
Benefits paid	(2,626)	(2,455)
Benefit obligation at end of year	28,914	41,348	41,707
Change in plan assets
Fair value of plan assets at beginning of year	20,972	21,372
Actual return on plan assets	1,171	1,022
Employer contributions	1,217	1,033
Benefits paid	(2,626)	(2,455)
Fair value of plan assets at end of year	20,734	20,972	$ 21,372
Funded status	(8,180)	(20,376)
Amounts recognized in the Consolidated Balance Sheets
Noncurrent assets	0	0
Current liabilities	(1,086)	(1,058)
Noncurrent liabilities	(7,094)	(19,318)
Amounts recognized in the Consolidated Balance Sheets	(8,180)	(20,376)
Amounts recognized in accumulated other comprehensive loss
Actuarial net (gain) loss	(7,811)	4,686
Prior service cost (credit)	(13,561)	(16,591)
Amounts recognized in accumulated other comprehensive loss	$ (21,372)	$ (11,905)

Pension Plans and Other Postr_6

Pension Plans and Other Postretirement Benefits (Pension Plans With The Benefit Obligation In Excess Of Plan Assets) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Pension Benefits \| United States
Defined benefit plans with accumulated benefit obligation in excess of plan assets
Accumulated benefit obligation	$ 28,838	$ 38,161
Fair market value of plan assets	0	0
Pension plans with project benefit obligation in excess of the fair market value of plan assets
Projected benefit obligation	29,042	38,618
Fair market value of plan assets	0	0
Pension Benefits \| Foreign Retirement Plans
Defined benefit plans with accumulated benefit obligation in excess of plan assets
Accumulated benefit obligation	22,625	26,415
Fair market value of plan assets	13,072	13,110
Pension plans with project benefit obligation in excess of the fair market value of plan assets
Projected benefit obligation	32,699	37,670
Fair market value of plan assets	13,072	13,110
Postretirement Benefits \| United States
Defined benefit plans with accumulated benefit obligation in excess of plan assets
Accumulated benefit obligation	17,782	25,323
Fair market value of plan assets	$ 0	$ 0

Pension Plans and Other Postr_7

Pension Plans and Other Postretirement Benefits (Assumptions To Calculate The Results Of Our Retirement Plans) (Details)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Pension Benefits \| United States
Weighted-average assumptions used to determine net periodic benefit cost (income) for years ended December 31,
Discount rate	2.875%	2.875%	3.50%
Expected long-term rate of return on plan assets	8%	8%	8.50%
Rate of projected compensation increase	3.50%	3.50%	3.50%
Weighted-average assumptions used to determine benefit obligations at December 31,
Discount rate	5.625%	2.875%	2.875%
Rate of projected compensation increase	3.50%	3.50%	3.50%
Pension Benefits \| Foreign Retirement Plans
Weighted-average assumptions used to determine net periodic benefit cost (income) for years ended December 31,
Discount rate	1.91%	1.14%	1.81%
Expected long-term rate of return on plan assets	4.59%	4.95%	5.23%
Rate of projected compensation increase	4.07%	3.94%	3.96%
Weighted-average assumptions used to determine benefit obligations at December 31,
Discount rate	4.61%	1.91%	1.14%
Rate of projected compensation increase	3.55%	4.07%	3.94%
Postretirement Benefits \| United States
Weighted-average assumptions used to determine net periodic benefit cost (income) for years ended December 31,
Discount rate	2.875%	2.875%	3.50%
Expected long-term rate of return on plan assets	4%	4.50%	4.50%
Weighted-average assumptions used to determine benefit obligations at December 31,
Discount rate	5.625%	2.875%	2.875%

Pension Plans and Other Postr_8

Pension Plans and Other Postretirement Benefits (Fair Value Of The Pension And Postretirement Benefit Plans Assets By Asset Category) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Pension Benefits \| United States
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 545,540	$ 663,193	$ 553,171
Pension Benefits \| United States \| Fair Value \| Equity securities U.S. Companies
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	417,687	490,775
Pension Benefits \| United States \| Fair Value \| Equity securities International companies
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	19,022	19,762
Pension Benefits \| United States \| Fair Value \| Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	18,979	12,451
Pension Benefits \| United States \| Fair Value \| Pooled investment funds Fixed Income Securities - Mutual Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	29,838	18,345
Pension Benefits \| United States \| Fair Value \| Pooled Investment Funds International Equities Mutual Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	21,020
Pension Benefits \| United States \| Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	485,526	562,353
Pension Benefits \| United States \| Level 1 \| Equity securities U.S. Companies
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	417,687	490,775
Pension Benefits \| United States \| Level 1 \| Equity securities International companies
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	19,022	19,762
Pension Benefits \| United States \| Level 1 \| Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	18,979	12,451
Pension Benefits \| United States \| Level 1 \| Pooled investment funds Fixed Income Securities - Mutual Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	29,838	18,345
Pension Benefits \| United States \| Level 1 \| Pooled Investment Funds International Equities Mutual Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	21,020
Pension Benefits \| United States \| Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pension Benefits \| United States \| Level 2 \| Equity securities U.S. Companies
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pension Benefits \| United States \| Level 2 \| Equity securities International companies
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pension Benefits \| United States \| Level 2 \| Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pension Benefits \| United States \| Level 2 \| Pooled investment funds Fixed Income Securities - Mutual Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pension Benefits \| United States \| Level 2 \| Pooled Investment Funds International Equities Mutual Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pension Benefits \| United States \| Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pension Benefits \| United States \| Level 3 \| Equity securities U.S. Companies
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pension Benefits \| United States \| Level 3 \| Equity securities International companies
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pension Benefits \| United States \| Level 3 \| Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pension Benefits \| United States \| Level 3 \| Pooled investment funds Fixed Income Securities - Mutual Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pension Benefits \| United States \| Level 3 \| Pooled Investment Funds International Equities Mutual Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pension Benefits \| United States \| Common collective trusts measured at net asset value \| Pooled Investment Funds Common Collective Trusts
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	60,014	100,840
Pension Benefits \| Foreign Retirement Plans
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	174,548	230,389	212,617
Pension Benefits \| Foreign Retirement Plans \| Fair Value \| Equity securities International companies
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	492	626
Pension Benefits \| Foreign Retirement Plans \| Fair Value \| Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	384	755
Pension Benefits \| Foreign Retirement Plans \| Fair Value \| Insurance contract
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	11,199	11,223
Pension Benefits \| Foreign Retirement Plans \| Fair Value \| Debt Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	734	438
Pension Benefits \| Foreign Retirement Plans \| Fair Value \| Pooled investment funds Mutual funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	647	822
Pension Benefits \| Foreign Retirement Plans \| Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2,257	2,641
Pension Benefits \| Foreign Retirement Plans \| Level 1 \| Equity securities International companies
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	492	626
Pension Benefits \| Foreign Retirement Plans \| Level 1 \| Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	384	755
Pension Benefits \| Foreign Retirement Plans \| Level 1 \| Insurance contract
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pension Benefits \| Foreign Retirement Plans \| Level 1 \| Debt Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	734	438
Pension Benefits \| Foreign Retirement Plans \| Level 1 \| Pooled investment funds Mutual funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	647	822
Pension Benefits \| Foreign Retirement Plans \| Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	11,199	11,223
Pension Benefits \| Foreign Retirement Plans \| Level 2 \| Equity securities International companies
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pension Benefits \| Foreign Retirement Plans \| Level 2 \| Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pension Benefits \| Foreign Retirement Plans \| Level 2 \| Insurance contract
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	11,199	11,223
Pension Benefits \| Foreign Retirement Plans \| Level 2 \| Debt Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pension Benefits \| Foreign Retirement Plans \| Level 2 \| Pooled investment funds Mutual funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pension Benefits \| Foreign Retirement Plans \| Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pension Benefits \| Foreign Retirement Plans \| Level 3 \| Equity securities International companies
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pension Benefits \| Foreign Retirement Plans \| Level 3 \| Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pension Benefits \| Foreign Retirement Plans \| Level 3 \| Insurance contract
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pension Benefits \| Foreign Retirement Plans \| Level 3 \| Debt Securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pension Benefits \| Foreign Retirement Plans \| Level 3 \| Pooled investment funds Mutual funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Pension Benefits \| Foreign Retirement Plans \| Common collective trusts measured at net asset value \| Pooled investment funds Equity securities - international companies
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	16,596
Pension Benefits \| Foreign Retirement Plans \| Common collective trusts measured at net asset value \| Pooled investment funds Equity Securities International companies
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	76,177	75,931
Pension Benefits \| Foreign Retirement Plans \| Common collective trusts measured at net asset value \| Pooled investment funds Debt securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	49,494	81,224
Pension Benefits \| Foreign Retirement Plans \| Common collective trusts measured at net asset value \| Pooled investment funds Diversified growth funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	35,421	42,774
Postretirement Benefits \| United States
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	20,734	20,972	$ 21,372
Postretirement Benefits \| United States \| Fair Value \| Insurance contract
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	20,734	20,972
Postretirement Benefits \| United States \| Level 1 \| Insurance contract
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Postretirement Benefits \| United States \| Level 2 \| Insurance contract
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	20,734	20,972
Postretirement Benefits \| United States \| Level 3 \| Insurance contract
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 0	$ 0

Pension Plans and Other Postr_9

Pension Plans and Other Postretirement Benefits (Expected Benefit Payments) (Details) $ in Thousands	Dec. 31, 2022 USD ($)
Pension Benefits \| United States
Defined Benefit Plan Disclosure [Line Items]
2023	$ 15,574
2024	16,626
2025	17,573
2026	18,469
2027	19,445
2028 through 2032	112,278
Pension Benefits \| Foreign Retirement Plans
Defined Benefit Plan Disclosure [Line Items]
2023	6,649
2024	7,133
2025	5,606
2026	5,726
2027	6,381
2028 through 2032	38,082
Postretirement Benefits \| United States
Defined Benefit Plan Disclosure [Line Items]
2023	2,249
2024	2,107
2025	2,008
2026	1,932
2027	1,866
2028 through 2032	$ 9,122

Income Taxes (Narrative) (Detai

Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Income Tax Contingency [Line Items]
Deferred Tax Assets, Foreign Operating And Foreign Capital Loss Carryforwards, Foreign And State Credits	$ 15,336	$ 12,746
Deferred Tax Assets, Valuation Allowance	13,012	12,219
Foreign Currency Translation Deferred		$ 2,000
Temporary Differences Related To Investments in Foreign Subsidiaries Considered Permanent	$ 268,000
Minimum [Member]
Income Tax Contingency [Line Items]
Foreign and United States jurisdictions, period of statutes of limitations, years	3 years
Maximum [Member]
Income Tax Contingency [Line Items]
Foreign and United States jurisdictions, period of statutes of limitations, years	5 years

Income Taxes (Schedule Of Incom

Income Taxes (Schedule Of Income Before Income Tax Expense and Provision for Income Taxes) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income before income tax expense
Domestic	$ 170,785	$ 97,245	$ 149,791
Foreign	176,949	150,306	181,496
Income before income tax expense	347,734	247,551	331,287
Current income taxes
Federal	57,778	13,166	14,861
State	12,515	7,639	6,106
Foreign	40,548	33,860	32,198
Current income taxes	110,841	54,665	53,165
Deferred income taxes
Federal	(34,088)	1,232	4,498
State	(8,491)	38	1,090
Foreign	(66)	708	1,966
Deferred income taxes	(42,645)	1,978	7,554
Total income tax expense	$ 68,196	$ 56,643	$ 60,719

Income Taxes (Reconciliation Of

Income Taxes (Reconciliation Of U.S. Federal Statutory Rate To Effective Income Tax Rate) (Details)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Federal statutory rate	21%	21%	21%
State taxes, net of federal tax	0.90%	2.40%	1.70%
Foreign operations	1.40%	2.40%	0.70%
Research tax credit	(1.60%)	(2.20%)	(1.70%)
Foreign-derived intangible tax benefit	(3.00%)	(0.70%)	(0.40%)
Uncertain tax positions	0.30%	(0.10%)	(1.70%)
Taxes applicable to prior years	(0.10%)	(0.40%)	(1.40%)
Other items and adjustments	0.70%	0.50%	0.10%
Effective income tax rate	19.60%	22.90%	18.30%

Income Taxes (Deferred Income T

Income Taxes (Deferred Income Tax Assets And Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Deferred income tax assets
Capitalized research expenses	$ 53,249	$ 15,708
Leasing liabilities	11,868	12,775
Operating loss and credit carryforwards	15,336	12,746
Foreign currency translation adjustments	5,261	4,054
Other	14,159	11,027
Gross deferred income tax assets	99,873	56,310
Valuation allowance	(13,012)	(12,219)
Total deferred income tax assets	86,861	44,091
Deferred income tax liabilities
Depreciation and amortization	78,058	79,023
Future employee benefits	52,446	32,253
Leasing assets	12,174	12,790
Other	2,601	4,145
Total deferred income tax liabilities	145,279	128,211
Net deferred income tax (liabilities) assets	$ (58,418)	$ (84,120)

Income Taxes (Schedule of Recon

Income Taxes (Schedule of Reconciliation Of Unrecognized Tax Benefits) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance at beginning of year	$ 6,374	$ 6,905	$ 13,543
Increases for tax positions of prior years	1,677	0	363
Increases for tax positions of the current year	809	698	824
Settlements	0	(247)	0
Lapses of statutes	(981)	(982)	(7,825)
Balance at end of year	$ 7,879	$ 6,374	$ 6,905

Fair Value Measurements (Narrat

Fair Value Measurements (Narrative) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Fair Value Measurements [Line Items]
Cash and Cash Equivalents, at Carrying Value	$ 68,712	$ 83,304
Reported Value Measurement [Member]
Fair Value Measurements [Line Items]
Cash and Cash Equivalents, at Carrying Value	69,000	83,000
Level 1 \| Estimate of Fair Value Measurement [Member]
Fair Value Measurements [Line Items]
Cash and cash equivalents, Fair Value	$ 69,000	$ 83,000

Fair Value Measurements (Estima

Fair Value Measurements (Estimated Fair Value Of Long-Term Debt) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Long-term debt, Carrying Amount	$ 1,003,737	$ 1,139,287
Level 2
Debt Instrument [Line Items]
Long-term debt, Fair Value	$ 906,891	$ 1,178,066

Commitments and Contingencies_2

Commitments and Contingencies (Contractual Commitments and Purchase Obligations) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($)
Construction of Assets and Purchases of Property and Equipment [Member]
Contractual Commitments And Contingencies [Line Items]
Contractual purchase obligations	$ 18,000
Period of obligations for construction of assets and purchases of property and equipment	5 years
Inventories [Member]
Purchase Obligations [Abstract]
2023	$ 83,038
2024	27,634
2025	3,634
2026	3,001
2027	2,959
After 2027	$ 6,875

Commitments and Contingencies_3

Commitments and Contingencies (Litigation) (Details) - Asbestos Claims - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Site Contingency [Line Items]
Asbestos litigation reserve	$ 7	$ 8
Insurance Settlements Receivable	$ 4	$ 4

Commitments and Contingencies_4

Commitments and Contingencies (Environmental) (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Site Contingency [Line Items]
Accruals for environmental remediation, dismantling, and decontamination	$ 10	$ 11
Environmental Loss Contingency, Statement of Financial Position [Extensible Enumeration]	Accrued expenses, Other noncurrent liabilities	Accrued expenses, Other noncurrent liabilities
Former TEL Plant Site Louisiana and Houston, Texas Plant Site [Member]
Site Contingency [Line Items]
Accruals for environmental remediation, dismantling, and decontamination	$ 8	$ 8
Accrual for environmental remediation, dismantling, and decontamination, undiscounted	10	10
Former TEL Plant Site Louisiana [Member]
Site Contingency [Line Items]
Accrual for remediation of groundwater and soil	3	3
Houston, Texas Plant Site [Member]
Site Contingency [Line Items]
Accrual for remediation of groundwater and soil	$ 4	$ 4
Minimum [Member] \| Former TEL Plant Site Louisiana and Houston, Texas Plant Site [Member]
Site Contingency [Line Items]
Discount rate	3%	3%
Maximum [Member] \| Former TEL Plant Site Louisiana and Houston, Texas Plant Site [Member]
Site Contingency [Line Items]
Discount rate	9%	9%

Other Comprehensive Income (L_3

Other Comprehensive Income (Loss) and Accumulated Other Comprehensive Loss (Components of Accumulated Other Comprehensive Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Pension Plans and Other Postretirement Benefits, Beginning Balance	$ 1,522	$ (92,771)	$ (69,795)
Foreign Currency Translation Adjustments, Beginning Balance	(83,749)	(80,393)	(92,953)
Accumulated Other Comprehensive (Loss) Income, Beginning Balance	(82,227)	(173,164)	(162,748)
Other comprehensive income (loss) before reclassifications, Pension Plans and Other Postretirement Benefits	53,019	89,194	(25,490)
Other comprehensive income (loss) before reclassifications, Foreign Currency Translation Adjustments	(42,808)	(3,356)	12,560
Other comprehensive income (loss) before reclassifications, Accumulated Other Comprehensive (Loss) Income	10,211	85,838	(12,930)
Amounts reclassified from accumulated other comprehensive loss, Pension Plans and Other Postretirement Benefits	21	5,099	2,514
Amounts reclassified from accumulated other comprehensive loss, Foreign Currency Translation Adjustments	0	0	0
Amounts reclassified from accumulated other comprehensive loss, Accumulated Other Comprehensive (Loss) Income	21	5,099	2,514
Total pension plans and other postretirement benefits	53,040	94,293	(22,976)
Foreign Currency Translation Adjustments, Other comprehensive income (loss)	(42,808)	(3,356)	12,560
Other comprehensive income (loss)	10,232	90,937	(10,416)
Pension Plans and Other Postretirement Benefits, Ending Balance	54,562	1,522	(92,771)
Foreign Currency Translation Adjustments, Ending Balance	(126,557)	(83,749)	(80,393)
Accumulated Other Comprehensive (Loss) Income, Ending Balance	$ (71,995)	$ (82,227)	$ (173,164)