Quaker Chemical (KWR) 10-K1 Mar 212020 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, 2020	Jan. 31, 2021	Jun. 30, 2020
Document and Entity Information [Abstract]
Document Type	10-K
Document Period Focus	FY
Document Fiscal Year Focus	2020
Document period end date	Dec. 31, 2020
Current fiscal year end date	--12-31
Document Annual Report	true
Document Transition Report	false
Amendment flag	false
Entity File Number	001-12019
Entity registrant name	QUAKER CHEMICAL CORPORATION
Entity Incorporation State Country Code	PA
Entity Tax Identification Number	23-0993790
Entity central index key	0000081362
Entity Address Address Line	901 E. Hector Street
Entity Address City Or Town	Conshohocken
Entity Address State Or Province	PA
Entity Address Postal Zip Code	19428-2380
City Area Code	610
Local Phone Number	832-4000
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
Entity Shell Company	false
Security 12(b) Title	Common Stock, $1 par value
Trading Symbol	KWR
Entity common stock shares outstanding		17,853,700
Entity public float			$ 3,273,904,147
Security Exchange Name	NYSE
Documents Incorporated By Reference [Text Block]	Portions of the Registrant’s definitive Proxy Statement relating to the 2021 Annual Meeting of Shareholders

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) $ in Thousands	12 Months Ended
Consolidated Statements of Income - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Statement [Abstract]
Net sales	$ 1,417,677	$ 1,133,503	$ 867,520
Cost of goods sold	904,234	741,386	555,206
Gross profit	513,443	392,117	312,314
Selling, general and administrative expenses	380,752	283,828	207,872
Indefinite-lived intangible asset impairment	38,000	0	0
Restructuring and related charges	5,541	26,678	0
Combination, integration and acquisition-related expenses	29,790	35,477	16,661
Operating income	59,360	46,134	87,781
Other expense, net	(5,618)	(254)	(642)
Interest expense, net	(26,603)	(16,976)	(4,041)
Income before taxes and equity in net income of associated companies	27,139	28,904	83,098
Taxes on income before equity in net income of associated companies	(5,296)	2,084	25,050
Income before equity in net income of associated companies	32,435	26,820	58,048
Equity in net income of associated companies	7,352	5,064	1,763
Net income	39,787	31,884	59,811
Net income attributable to noncontrolling interest	129	262	338
Net income attributable to Quaker Chemical Corporation	$ 39,658	$ 31,622	$ 59,473
Per share data:
Net income attributable to Quaker Chemical Corporation common shareholders - basic	$ 2.23	$ 2.08	$ 4.46
Net income attributable to Quaker Chemical Corporation common shareholders - diluted	$ 2.22	$ 2.08	$ 4.45

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Statement Of Comprehensive Income [Abstract]
Net income	$ 39,787	$ 31,884	$ 59,811
Currency translation adjustments	41,601	4,779	(17,519)
Defined Benefit Plans [Abstract]
Net gain (loss) arising during the period, other	8,827	(6,289)	1,119
Amortization of actuarial loss	2,308	2,458	2,507
Amortization of prior service gain	(69)	(151)	(84)
Current period change in fair value of derivatives	(3,278)	(320)	0
Unrealized gain (loss) on available-for-sale securities	2,091	2,093	(1,728)
Other comprehensive income (loss)	51,480	2,570	(15,705)
Comprehensive Income	91,267	34,454	44,106
Less: comprehensive income attributable to noncontrolling interest	(37)	(287)	(248)
Comprehensive income attributable to Quaker Chemical Corporation	$ 91,230	$ 34,167	$ 43,858

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Current assets
Cash and cash equivalents	$ 181,833	$ 123,524
Accounts receivable, net	372,974	375,982
Inventories, net	187,764	174,950
Prepaid expenses and other current assets	50,156	41,516
Total current assets	792,727	715,972
Property, plant and equipment, net	203,883	213,469
Right of use lease assets	38,507	42,905
Goodwill	631,212	607,205
Other intangible assets, net	1,081,358	1,121,765
Investments in associated companies	95,785	93,822
Deferred tax assets	16,566	14,745
Other non-current assets	31,796	40,433
Total assets	2,891,834	2,850,316
Current liabilities
Short-term borrowings and current portion of long-term debt	38,967	38,332
Accounts payable	191,821	164,101
Dividends payable	7,051	6,828
Accrued compensation	43,300	45,620
Accrued restructuring	8,248	18,043
Accrued pension and postretirement benefits	1,466	3,405
Other accrued liabilities	92,107	83,605
Total current liabilities	382,960	359,934
Long-term debt	849,068	882,437
Long-term lease liabilities	27,070	31,273
Deferred tax liabilities,net	192,763	211,094
Non-current accrued pension and post-retirment benefits	63,890	56,828
Other non-current liabilities	55,169	66,384
Total liabilities	1,570,920	1,607,950
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract]
Common stock, $1 par value; authorized 30,000,000 shares; issued and outstanding 2020 - 17,850,616 shares; 2019 - 17,735,162 shares	17,851	17,735
Capital in excess of par value	905,171	888,218
Retained earnings	423,940	412,979
Accumulated other comprehensive loss	(26,598)	(78,170)
Total Quaker shareholders' equity	1,320,364	1,240,762
Noncontrolling interest	550	1,604
Total equity	1,320,914	1,242,366
Total liabilities and equity	$ 2,891,834	$ 2,850,316

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parentheticals) - $ / shares	Dec. 31, 2020	Dec. 31, 2019
Statement Of Financial Position [Abstract]
Common Stock Par Value	$ 1	$ 1
Common Stock Shares Authorized	30,000,000	30,000,000
Common Stock Shares, Issued	17,850,616	17,735,162

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Cash flows from operating activities
Net income	$ 39,787	$ 31,884	$ 59,811
Adjustments to reconcile net income to net cash provided by operating activities:
Amortization of debt issuance costs	4,749	1,979	70
Depreciation and amortization	83,246	44,895	19,714
Equity in undistributed earnings of associated companies, net of dividends	4,862	(2,115)	2,784
Acquisition-related fair value adjustments related to inventory	229	11,714	0
Deferred income taxes	(38,281)	(24,242)	8,197
Uncertain tax positions (non-deferred portion)	1,075	958	(89)
Non-current income taxes payable	0	856	(8,181)
Deferred compensation and other, net	(471)	(6,789)	2,914
Share-based compensation	10,996	4,861	3,724
Loss (gain) on disposal of property, plant and equipment and other assets	871	(58)	(657)
Insurance settlement realized	(1,035)	(822)	(1,055)
Indefinite-lived intangible asset impairment	38,000	0	0
Gain on inactive subsidiary litigation and settlement reserve	(18,144)	0	0
Combination and other acquisition-related expenses, net of payements	860	(14,414)	2,727
Restructuring and related charges	5,541	26,678	0
Pension and other postretirement benefits contributions	(16,535)	(46)	(1,392)
Increase (decrease) in cash from changes in current assets and current liabilities, net of acquisitions:
Accounts receivable	17,170	19,926	(2,822)
Inventories	(3,854)	10,844	(10,548)
Prepaid expenses and other current assets	927	(4,640)	(1,540)
Change in restructuring liabilities	(15,745)	(8,899)	0
Accounts payable and accrued liabilities	22,308	(8,915)	190
Estimated taxes on income	8,763	(1,373)	4,932
Net cash provided by operating activities	178,389	82,374	78,779
Cash flows from investing activities
Investments in property, plant and equipment	(17,901)	(15,545)	(12,886)
Payments related to acquisitions, net of cash acquired	(56,230)	(893,412)	(500)
Proceeds from disposition of assets	2,702	103	866
Insurance settlement interest earned	44	222	162
Net cash used in investing activities	(71,385)	(908,632)	(12,358)
Cash flows from financing activities
Payments of long-term debt	37,615	0	0
Proceeds from long-term debt	0	750,000	0
(Repayments) borrowings on revolving credit facilities, net	(11,485)	147,135	(21,120)
Repayments on other debt, net	(661)	(8,798)	(5,671)
Financing-related debt issuance costs	0	(23,747)	0
Dividends paid	(27,563)	(21,830)	(19,319)
Stock options exercised, other	3,867	1,370	82
Purchase of noncontrolling interest in affiliates, net	(1,047)	0	0
Distributions to noncontrolling affiliate shareholders	(751)	0	(877)
Net cash provided (used in) by financing activities	(75,255)	844,130	(46,905)
Effect of exchange rate changes on cash	6,591	1,258	(6,141)
Net increase in cash, cash equivalents and restricted cash	38,340	19,130	13,375
Cash, Cash Equivalents and Restricted Cash at the beginning of the period	143,555	124,425	111,050
Cash, Cash Equivalents and Restricted Cash at the end of the period	181,895	143,555	124,425
Supplemental Cash Flow Information [Abstract]
Income taxes, net of refunds	20,253	15,499	19,617
Interest	23,653	19,553	2,417
Other Noncash Investing And Financing Items [Abstract]
Change in accrued purchases of property, plant and equipment, net	$ 1,376	$ 1,978	$ 281

Consolidated Statements of Chan

Consolidated Statements of Changes in Equity - USD ($) $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment [Member]	Adjusted Balance [Member]	Common Stock [Member]	Common Stock [Member]Cumulative Effect, Period of Adoption, Adjustment [Member]	Common Stock [Member]Adjusted Balance [Member]	Additional Paid-in Capital [Member]	Additional Paid-in Capital [Member]Cumulative Effect, Period of Adoption, Adjustment [Member]	Additional Paid-in Capital [Member]Adjusted Balance [Member]	Retained Earnings [Member]	Retained Earnings [Member]Cumulative Effect, Period of Adoption, Adjustment [Member]	Retained Earnings [Member]Adjusted Balance [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Accumulated Other Comprehensive Income (Loss) [Member]Cumulative Effect, Period of Adoption, Adjustment [Member]	Accumulated Other Comprehensive Income (Loss) [Member]Adjusted Balance [Member]	Noncontrolling Interest [Member]	Noncontrolling Interest [Member]Cumulative Effect, Period of Adoption, Adjustment [Member]	Noncontrolling Interest [Member]Adjusted Balance [Member]
Beginning Balance at Dec. 31, 2017	$ 409,618	$ (754)	$ 408,864	$ 13,308	$ 0	$ 13,308	$ 93,528	$ 0	$ 93,528	$ 365,936	$ (754)	$ 365,182	$ (65,100)	$ 0	$ (65,100)	$ 1,946	$ 0	$ 1,946
Net income	59,811			0			0			59,473			0			338
Amounts reported in other comprehensive income (loss)	(15,705)			0			0			0			(15,615)			(90)
Dividends common stock	(19,530)			0			0			(19,530)			0			0
Distributions to noncontrolling affiliate shareholders	(877)			0			0			0			0			(877)
Shares issued upon exercise of stock options and other	(423)			9			(432)			0			0			0
Shares issued for employee stock purchase plan	505			3			502			0			0			0
Share based compensation plans	3,724			18			3,706			0			0			0
Ending Balance at Dec. 31, 2018	436,369	(44)	436,325	13,338	0	13,338	97,304	0	97,304	405,125	(44)	405,081	(80,715)	0	(80,715)	1,317	0	1,317
Net income	31,884			0			0			31,622			0			262
Amounts reported in other comprehensive income (loss)	2,570			0			0			0			2,545			25
Dividends common stock	(23,724)			0			0			(23,724)			0			0
Shares issued related to the Combination	789,080			4,329			784,751			0			0			0
Shares issued upon exercise of stock options and other	894			23			871			0			0			0
Shares issued for employee stock purchase plan	476			3			473			0			0			0
Share based compensation plans	4,861			42			4,819			0			0			0
Ending Balance at Dec. 31, 2019	1,242,366	$ (911)	$ 1,241,455	17,735	$ 0	$ 17,735	888,218	$ 0	$ 888,218	412,979	$ (911)	$ 412,068	(78,170)	$ 0	$ (78,170)	1,604	$ 0	$ 1,604
Net income	39,787			0			0			39,658			0			129
Amounts reported in other comprehensive income (loss)	51,480			0			0			0			51,572			(92)
Dividends common stock	(27,786)			0			0			(27,786)			0			0
Acquisition of noncontrolling interest	1,047			0			707			0			0			340
Distributions to noncontrolling affiliate shareholders	(751)			0			0			0			0			(751)
Shares issued upon exercise of stock options and other	6,780			66			6,714			0			0			0
Share based compensation plans	10,996			50			10,946			0			0			0
Ending Balance at Dec. 31, 2020	$ 1,320,914			$ 17,851			$ 905,171			$ 423,940			$ (26,598)			$ 550

Consolidated Statements of Ch_2

Consolidated Statements of Changes in Equity (Parentheticals) - $ / shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Consolidated Statement Of Changes In Equity Parentheticals [Abstract]
Dividends declared	$ 1.560	$ 1.525	$ 1.465

Significant Accounting Policies

Significant Accounting Policies	12 Months Ended
Significant Accounting Policies	Dec. 31, 2020
Significant Accounting Policies [Abstract]
Significant Accounting Policies [Text Block]	Note 1 – Significant Accounting Policies As used in these Notes to Consolidated Financial Statements, and “our” refer to Quaker Chemical Corporation (doing unless the context otherwise requires. the Company prior to the closing of its combination with “Combination”). Principles of consolidation: All majority-owned subsidiaries are included in the with appropriate elimination of intercompany balances and Investments in associated companies (less than majority- owned and in which the Company has significant income or losses in these investments in associated companies periodically reviews these investments for impairments decline in market value or other impairment indicators are Financial Statements. The Company is not the primary beneficiary of any Company’s consolidated Translation of Assets and liabilities of non-U.S. subsidiaries and associated comp U.S. dollars at the respective rates of exchange prevailing average exchange rates prevailing during the year. as accumulated other comprehensive (loss) income of the underlying entity or asset. currency. Cash and cash equivalents: The Company invests temporary and excess funds in money market securities and financial instruments having maturities within 90 days. The Company considers all highly liquid investments with original maturities of three months or less to be cash equivalents. Inventories: Inventories are valued at the lower of cost or net realizable See Note 14 of Notes to Consolidated Financial Statements. Long-lived assets: Property, plant and is computed using the straight-line method on an individual improvements, 10 45 1 15 whenever changes in circumstances or current events indicate of undiscounted cash flows produced by the asset, or the whether an impairment exists. amount of the assets and their estimated fair value. other dispositions of long-lived assets, the applicable amounts of accounts and the net amount, less proceeds from renewals or improvements that increase the estimated useful repairs and maintenance are expensed when incurred. Capitalized software: The Company capitalizes certain costs in connection with developing use, depending on the associated project. 3 5 intended use. related systems, approximately $2.3 $2.6 Balance Sheets at December 31, 2020 and 2019, respectively. Goodwill and other intangible assets: The Company records goodwill, definite-lived intangible intangible assets at fair value at the date of acquisition. impairment at least annually. Definite-lived intangible assets are amortized on a straight from 4 20 discussion of long-lived assets, above. Revenue recognition: The Company applies the Financial Accounting Standards recognition which requires the Company to recognize expects to be entitled in exchange for goods or services model in the FASB’s obligations in the contract; (iii) determine the transaction contract; and (v) recognize revenue when, or as, Financial Statements. Accounts receivable and allowance for doubtful Trade accounts receivable subject the Company Trade accounts receivable are recorded accounts is the Company’s adopted ASU 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments on a modified retrospective basis, effective January The Company recognizes an allowance for credit losses, which expect to collect over its contractual life, considering conditions. circumstances for each outstanding receivable and customer, the Company estimates for certain past due aging categories, historical amounts determined to be uncollectible. customers. Research and development costs and administrative expenses (“SG&A”). $40.0 $32.1 $24.5 the years ended December 31, 2020, 2019 and 2018, Environmental liabilities and expenditures: Accruals for environmental matters are recorded has been incurred and the amount of the liability can in that range is considered more probable than another, generally accepted accounting principles in the United capitalized if the costs extend the life, increase the constructed, and/or mitigate or prevent contamination Asset retirement obligations: The Company follows the FASB’s addresses the accounting and reporting for obligations retirement costs. relates to legal obligations to perform an asset retirement a future event that may or may not be within the control liability when there is enough information regarding the analysis. recorded for such on its Consolidated Balance Sheets. Pension and o ther postretirement benefits: The Company maintains various noncontributory retirement portion of its employees in the U.S. and certain other Sweden, Germany and France. accounting for defined benefit pension plans. insured or integrated with the local governments’ plans and that employers recognize on a prospective basis the their consolidated balance sheet and, also, recognize credits that arise during the period but are not recognized requires that an employer recognize a settlement charge including plan termination or the settlement of certain expense of a portion of the unrecognized loss within AOCI on obligation that was settled. December 31. The Company’s global with meeting the future benefit obligations of the pension including the Employee Retirement Income Security targets and benchmarks for significant asset classes Company’s investment perspective of capital markets, expected risk and return plan liabilities. intermediate portfolio duration is matched to reduce portfolio is managed to maximize the long-term real assessment of risk and targeting the optimal expected guidelines prohibit the use of securities such as letter stock and short sales, margin transactions, private placements for the purpose of portfolio leveraging. The target asset allocation is reviewed periodically inflation rates, fixed income yields, returns, volatilities and obligations is periodically studied to assist in establishing such an overall expectation that plan assets will meet or exceed pension committee, as authorized by the Company’s allocation ranges approved by senior management of the Comprehensive income (loss): The Company presents other comprehensive income (loss) in its Statements Income. disclosure of significant amounts reclassified from each items affected by such reclassifications. Income taxes and uncertain tax positions: The provision for income taxes is determined using the asset and of accounting for income taxes. reported amounts of assets and liabilities are recovered payable for the current year and the change in deferred taxes financial and tax bases of the Company’s enacted. realized. measurement attributes for financial statement recognition return. sustained upon audit based upon the technical merits of not sustained upon audit, a company recognizes the largest 50 % likely of being realized upon ultimate settlement in the financial statements. audit, a company does not recognize any portion of the adjusts for derecognition, classification, and penalties and thereto. statutory rate of interest to the difference taken or expected to be taken in a tax return. income tax expense. related to net operating losses or other tax credit carryforwards presumed amount at the balance sheet date. Pursuant to the Tax Tax”), subject to and will incur other taxes, such as withholding taxes and ultimately remitted to the U.S. support working capital needs and certain other growth and may in the future change its indefinite reinvestment Company would estimate and record a tax liability and incur to ultimately remit these earnings to the U.S. Derivatives: The Company is exposed to the impact of changes in interest rates, commodity prices and credit risk. exposure to variability in interest payments associated with its variable consistent with the related underlying exposures and do not 2020 and 2019, are entered into with a limited number of counterparties, payment in a single currency in the event of a default on a net basis within the Consolidated Balance Sheets. in AOCI and will be recognized in the Consolidated Statements becomes probable that the forecasted transaction will not occur. Fair value measurements: The Company utilizes the FASB’s common definition for fair value to be applied to guidance value and expands disclosure about such fair value measurements. prioritizes the inputs to valuation techniques used to measure fair Consolidated Financial Statements. • Level 1: Observable inputs such as quoted prices (unadjusted) • Level 2: Inputs other than quoted prices that are observable include quoted prices for similar assets or liabilities in active liabilities in markets that are not active. • Level 3: Unobservable inputs that reflect the reporting entity's own assumptions. Share-based compensation: The Company applies the FASB’s recognition of the fair value of share-based compensation program (“LTIP”) value on the date of the grant. three years determined by the Company, seven years issued under the LTIP one three-year Company’s Annual Incentive two five - year period. In addition, while the FASB’s they occur for service condition aspects of certain share-based and instead has elected to continue utilizing a forfeiture forfeiture rate of 13 % on certain of its nonvested stock awards. rate is lower than estimated and will record a recovery The Company also issues performance-dependent dependent stock awards is based on their grant-date market performance goals and is calculated by utilizing a Monte Carlo line basis over the vesting period, generally three years . See Note 8 of the Notes to Consolidated Financial Statements. Earnings per share: The Company follows the FASB’s stock awards with rights to non-forfeitable dividends. dividends to be included as part of the basic weighted Consolidated Financial Statements. Segments: The Company’s reportable which the Company’s resources performance . Hyper-inflationary accounting: Economies that have a cumulative three-year rate of inflation 100 % are considered hyper-inflationary in accordance with U.S. GAAP. required to remeasure its monetary assets and liabilities to the losses resulting from the remeasurement directly to the Consolidated Venezuela’s 50 % equity interest in a Venezuelan and restrictions currently present within Venezuela, significant influence over this affiliate. equity method. no Venezuela. Based on various indices or index compilations currently instability, effective Company began applying hyper-inflationary July 1, 2018. for the year ended December 31, 2020, the Company's Argentine 1 % of the Company’s consolidated total assets and net sales, respectively. During the years ended December 31, 2020, 2019 and 2018, the Company recorded $0.4 million, $1.0 million, and $0.7 million, respectively, of remeasurement losses associated with the applicable currency conversions related to Venezuela and Argentina. Business combinations: The Company accounts for business combinations under method requires the recording of acquired assets, including respective acquisition date estimated fair values. assets acquired is recorded as goodwill. requires significant estimates and assumptions. which may be up to one year from the acquisition date, acquired and liabilities assumed. Restructuring activities: Restructuring programs consist of employee severance, facilities and other related items. cost obligations. liability is incurred, is estimable, and payment is probable. Reclassifications: Certain information has been reclassified to conform Accounting estimates: The preparation of financial statements in conformity requires management to make estimates and assumptions that contingencies at the date of the financial statements and Actual results could differ from such estimates.

Business Combination

Business Combination	12 Months Ended
Business Combination	Dec. 31, 2020
Business Combinations [Abstract]
Business Combination Disclosure [Text Block]	Note 2 – Business Combinations Houghton On August 1, 2019 , the Company completed the Combination, whereby the Company shares of Houghton from Gulf Houghton Lubricants, Ltd. and shares of the Company’s leading global provider of specialty chemicals and technical Company believes that combining the Legacy Quaker serve its customers in its various end markets. The Combination was subject to certain regulatory Company’s shareholders in 2017, the Company received regulatory approvals for regulatory approvals from the European Commission Commission (“FTC”) in July 2019. aluminum related product lines of Houghton, which 37 The final remedy agreed with the EC and the FTC was consistent product lines would be approximately 3 % of the combined company’s The following table summarizes the fair value of consideration Cash transferred to Houghton shareholders (a) $ 170,829 Cash paid to extinguish Houghton debt obligations 702,556 Fair value of common stock issued as consideration (b) 789,080 Total fair value $ 1,662,465 (a) milestones. (b) 4.3 24.5 % of the common stock of the Company immediately after the closing, and the closing price per 182.27 August 1, 2019. The Company accounted for the Combination under the acquired assets, including separately identifiable purchase price over the estimated fair value of estimated fair value of assets acquired, including indefinite often involves the use of significant estimates and assumptions, outflows, discount rates, customer attrition rates, royalty determined by management using a variety of methodologies valuation methods included physical appraisals, discounted appropriate valuation techniques to determine the fair value The following table presents the final estimated fair Measurement August 1, Period August 1, 2019 2019 (1) Adjustments (as adjusted) Cash and cash equivalents $ 75,821 $ — $ 75,821 Accounts receivable 178,922 — 178,922 Inventories 95,193 — 95,193 Prepaid expenses and other assets 10,652 666 11,318 Property, plant and 115,529 (66) 115,463 Right of use lease assets 10,673 — 10,673 Investments in associated companies 66,447 — 66,447 Other non-current assets 4,710 1,553 6,263 Intangible assets 1,028,400 — 1,028,400 Goodwill 494,915 4,625 499,540 Total assets purchased 2,081,262 6,778 2,088,040 Short-term borrowings, not refinanced at closing 9,297 — 9,297 Accounts 150,078 1,127 151,205 Deferred tax liabilities 205,082 4,098 209,180 Long-term lease liabilities 6,607 — 6,607 Other non-current liabilities 47,733 1,553 49,286 Total liabilities assumed 418,797 6,778 425,575 Total consideration 1,662,465 — 1,662,465 Less: cash acquired 75,821 — 75,821 Less: fair value of common stock issued as consideration 789,080 — 789,080 Net cash paid for Houghton $ 797,564 $ — $ 797,564 (1) As previously disclosed in the Company’s During 2020, the allocation of the purchase price for one-year ended. identification or allocated basis, as applicable. adjustments were recorded during 2020 related primarily associated with foreign tax credits acquired as part of update the Company’s initial addition, measurement period adjustments included liabilities based on additional information obtained regarding non-income tax liabilities payable upon closing of the 1,028.4 adjustments, comprised of $ 242.0 677.3 million of customer relationships, to be amortized over 15 18 109.1 amortized over 20 499.5 related to expected value not allocated to other acquired Consolidated Financial Statements. management, business processes and personnel that is expected to generate significant cross-selling opportunities and Houghton subsequent to closing of the Combination and included ended December 31, 2019 were $ 299.8 prepared as if the Combination had taken place each company’s historical of fair value step up and estimated useful lives of depreciable companies acquired; (ii) adoption of required accounting transactions between Legacy Quaker and Houghton; adjustment to interest expense, net, to reflect the impact adjustment for certain Combination, period immediately following the pro-forma closing include an expense recorded in costs of goods sold (“COGS”) was adjusted to fair value as part of purchase accounting, restructuring program initiated post-closing of the Combination combination and other acquisition-related expenses. costs on a pro forma basis were incurred during the year indicative of the results that would have occurred if the for various reasons, including the potential impact of revenue For the years ending Unaudited Pro Forma (as if the Combination occurred on 2019 2018 Net sales $ 1,562,427 $ 1,654,588 Net income attributable to Quaker Chemical Corporation 94,537 35,337 Combination, Company incurred total costs of $ 30.3 38.0 19.5 2018 other advisory planning and post-closing integration activities including costs to maintain the bank commitment (“ticking fees”) 2018, during the year ended December 31, 2020, and a gain As of December 31, 2020 and 2019, the Company activities of $ 7.5 6.6 Sheets. Norman Hay In October 2019 , the Company completed its acquisition of the operating divisions Norman Hay plc U.K. company new technologies in automotive, original equipment expected to strengthen the Company’s assigned to the Global Specialty Businesses reportable segment. 80.0 and debt-free basis, subject to routine and customary The following table presents the final estimated fair Measurement October 1, Period October 1, 2019 2019 (1) Adjustments (as adjusted) Cash and cash equivalents $ 18,981 $ — $ 18,981 Accounts receivable 15,471 — 15,471 Inventories 8,213 (49) 8,164 Prepaid expenses and other assets 4,203 138 4,341 Property, plant and 14,981 — 14,981 Right of use lease assets 10,608 — 10,608 Intangible assets 51,088 — 51,088 Goodwill 29,384 (82) 29,302 Total assets purchased 152,929 7 152,936 Long-term debt included current portions 485 — 485 Accounts payable, accrued expenses and other accrued 13,488 (732) 12,756 Deferred tax liabilities 12,746 905 13,651 Long-term lease liabilities 8,594 — 8,594 Total liabilities assumed 35,313 173 35,486 Total consideration 117,616 (166) 117,450 Less: estimated purchase price settlement (2) 3,287 (3,287) — Less: cash acquired 18,981 — 18,981 Net cash paid for Norman Hay $ 95,348 $ 3,121 $ 98,469 (1) As previously disclosed in the Company’s (2) The Company finalized its post-closing adjustments for 2.5 during the first quarter of 2020 to settle such adjustments. During 2020, the allocation of the purchase price for one-year The Company allocated $ 51.1 36.9 to be amortized over 13 17 7.5 20 6.3 trademarks, to be amortized over 16 17 0.4 2 11 addition, the Company recorded $ 29.3 which will be tax deductible. management, business processes and personnel that The results of operations of Norman Hay are included Transaction expenses associated with in the Company’s Consolidated Norman Hay are not considered material to the overall Coral Chemical Company In December 2020 , the Company completed its acquisition of Coral Chemical Company provider of metal finishing fluid solutions. metalworking and wastewater treatment applications assets and liabilities were assigned to the Americas and Global was approximately $ 54.1 indebtedness levels. The following table presents the preliminary estimated fair December 22, 2020 Cash and cash equivalents $ 958 Accounts receivable 8,473 Inventories 4,527 Prepaid expenses and other assets 181 Property, plant and 10,467 Intangible assets 30,300 Goodwill 2,814 Total assets purchased 57,720 Long-term debt included current portions 183 Accounts payable, accrued expenses and other accrued liabilities 3,482 Total liabilities assumed 3,665 Total consideration 54,055 Less: cash acquired 958 Net cash paid for Coral $ 53,097 The Company allocated $ 30.3 22.0 relationships, to be amortized over 21 24 4.7 14 15 $ 3.6 17 2.8 expected value not allocated to other acquired assets, none that resulted in goodwill included the acquisition of to better serve its customers. As of December 31, 2020, the allocation of the purchase one-year period has not ended. information related to the fair value of assets acquired upon the valuation of assets and these estimates and assumptions during the measurement period. adjustments to goodwill. The results of operations of Coral subsequent to the December 31, 2020. acquisition-related expenses in the Company’s presented, as the operations of Coral are not considered Other Acquisitions In February 2021, the Company acquired certain assets related $ 25 date of closing was after December 31, 2020. ended December 31, 2020 are included in Combination, Consolidated Statements of Income. presented as that information is not available as of In May 2020, the Company acquired Tel in high pressure aluminum die casting for its Europe, in the form of a convertible promissory note in the amount 20.0 2.9 subsequently converted into shares of the Company’s 0.4 million DKK, or less than $ 0.1 Company allocated approximately $ 2.4 17 the Company recorded approximately $ 0.5 of which will be tax deductible. period has not ended. information related to the fair value of assets acquired In March 2020, the Company acquired the remaining 49 % ownership interest in one of its South African affiliates, Chemical South Africa Limited (“QSA”) for 16.7 1.0 Holdings South Africa. controlling ownership, the Company recorded $ 0.7 interest in Capital in excess of par value. In March 2018, the Company purchased certain formulations 1.0 The Company allocated the entire purchase price to intangible amortized over 10 0.5 paid at signing, and the remaining $ 0.5

Recently Issued Accounting Stan

Recently Issued Accounting Standards	12 Months Ended
Recently Issued Accounting Standards	Dec. 31, 2020
New Accounting Pronouncements And Changes In Accounting Principles [Abstract]
New Accounting Pronouncements and Changes in Accounting Principles [Text Block]	Note 3 – Recently Issued Accounting Standards Recently Issued Accounting Standards The FASB issued 2020-04, Reference Rate Reform (Topic Reference Rate Reform on Financial exceptions for applying GAAP to contract modifications, and financial reporting burden associated with transitioning the London Interbank Offered Rate (“LIBOR”). be applied through December 31, 2022. Company; however, the Company The FASB issued , Customer’s That Is a Service Contract arrangement under a service contract. in a hosting arrangement under a service contract with the software. should be applied either retrospectively or prospec adoption was permitted. cumulative effect of adoption recorded within The FASB issued Disclosure Framework — Changes to August 2018 that modifies certain disclosure requirements requirements regarding transfers between levels of processes for certain fair value measurements. and losses and significant unobservable inputs used to standard update is effective for annual and the initial year of adoption or prospectively to all periods adoption was permitted. addresses disclosures only and will not The FASB issued Requirements for Fair Value defined benefit pension or other postretirement plans. cost beneficial, clarify the specific requirements of certain guidance within this accounting standard update applied retrospectively to all periods presented. There was no cumulative effect of adoption The FASB issued Financial Instruments - Credit Losses (Topic Instruments in June 2016 related to the accounting for and disclosure of additional accounting standard updates which amended applicability to the Company. instruments, including customer accounts receivable, the guidance in this accounting standard update, including on a modified retrospective basis, effective January statements as expected. resulted in an increase to its allowance for doubtful 1.1 $ 0.2 0.9 In accordance with this guidance, the Company recognizes collected from its financial assets, primarily trade accounts Company does not expect to collect over its contractual economic conditions. facts and circumstances for each outstanding receivable and collection risk the Company estimates for certain past due receivable based on historical amounts determined to Statements.
Description Of New Accounting Pronouncements Not Yet Adopted [Text Block]	Recently Issued Accounting Standards The FASB (Topic January 2020 clarifying the interaction among the certain derivatives. a company to either apply or discontinue the equity method alternative immediately before applying or upon discontinuing of certain purchased options and forward contracts used is effective for annual and interim periods beginning permitted. adoption to have an impact to its financial statements. The FASB issued , Income Taxes The guidance within this accounting standard update for certain intra-period tax allocations, to the requirement method investments and foreign subsidiaries, and to the year-to-date loss exceeds the anticipated loss for the step up in tax basis for goodwill, current and deferred employee stock ownership plans. adoption is permitted. implementation and any potential adoption impact.

Business Segments

Business Segments	12 Months Ended
Business Segments	Dec. 31, 2020
Segment Disclosures [Abstract]
Segment Reporting Disclosure [Text Block]	Note 4 – Business Segments The Company’s operating internal organization, the method by which decision Company reorganized its executive management chief operating decision maker assesses the Company’s segment structure includes four segments: (i) Americas; geographic segments are composed of the net sales and managed globally by the Global Specialty Businesses segment, offshore, specialty coatings, specialty grease and Although the Company changed its reportable segments in measures of earnings remains otherwise generally Company’s reportable not directly attributable to the net sales of each respective integration and other acquisition-related expenses, and Restructuring earnings. expense, net. The following tables present information about the performance December 31, 2020, 2019 and 2018. December 31, 2019 and 2018 have been made to conform with 2020 2019 2018 Net sales Americas $ 450,161 $ 392,121 $ 297,601 EMEA 383,187 285,570 216,984 Asia/Pacific 315,299 247,839 192,502 Global Specialty Businesses 269,030 207,973 160,433 Total $ 1,417,677 $ 1,133,503 $ 867,520 2020 2019 2018 Segment operating earnings Americas $ 96,379 $ 78,297 $ 62,686 EMEA 69,163 47,014 36,119 Asia/Pacific 88,356 67,512 53,739 Global Specialty Businesses 79,690 58,881 42,931 Total 333,588 251,704 195,475 Combination, integration and other acquisition-related (29,790) (35,477) (16,661) Restructuring and related charges (5,541) (26,678) — Fair value step up of inventory sold (226) (11,714) — Indefinite-lived intangible asset impairment (38,000) — — Non-operating and administrative expenses (143,202) (104,572) (83,515) Depreciation of corporate assets and amortization (57,469) (27,129) (7,518) Operating income 59,360 46,134 87,781 Other expense, net (5,618) (254) (642) Interest expense, net (26,603) (16,976) (4,041) Income before taxes and equity in net income associated companies $ 27,139 $ 28,904 $ 83,098 The following tables present information regarding the certain identifiable assets as well as an allocation of 2020 2019 2018 Segment assets Americas $ 969,551 $ 926,122 $ 180,037 EMEA 697,821 688,663 149,984 Asia/Pacific 713,004 685,476 205,424 Global Specialty Businesses 511,458 550,055 174,220 Total segment assets $ 2,891,834 $ 2,850,316 $ 709,665 2020 2019 2018 Segment long-lived assets Americas $ 122,302 $ 139,170 $ 60,745 EMEA 69,344 56,108 23,383 Asia/Pacific 119,233 126,166 26,217 Global Specialty Businesses 59,091 69,184 26,949 Total segment long-lived $ 369,970 $ 390,628 $ 137,294 The following tables present information regarding the identifiable assets for the years ended December 31, 2020 2019 2018 Capital expenditures Americas $ 6,451 $ 6,404 $ 3,401 EMEA 3,844 3,263 2,081 Asia/Pacific 5,688 3,857 6,059 Global Specialty Businesses 1,918 2,021 1,345 Total segment capital $ 17,901 $ 15,545 $ 12,886 2020 2019 2018 Depreciation Americas $ 12,322 $ 7,500 $ 4,225 EMEA 6,813 4,560 3,434 Asia/Pacific 4,672 3,458 2,552 Global Specialty Businesses 3,544 2,248 1,985 Total segment depreciation $ 27,351 $ 17,766 $ 12,196 During the years ended December 31, 2020, 2019 and 2018, $963.2 $719.8 $534.6 had approximately $176.6 $174.4 $60.8 operations. Inter-segment revenue for the years ended December $9.1 $7.3 $8.3 Americas, $22.0 $20.3 $21.9 $0.6 $0.2 $0.5 $4.7 $5.4 $5.3 have been eliminated from each reportable operating

Net Sales and Revenue Recogniti

Net Sales and Revenue Recognition	12 Months Ended
Net Sales and Revenue Recognition	Dec. 31, 2020
Revenue From Contract With Customer [Abstract]
Revenue From Contract With Customer [TextBlock]	Note 5 – Net Sales and Revenue Recognition Business Description The Company develops, produces, and markets a broad management services (“Fluidcare”) for various heavy Combination increased the Company’s aerospace, tube and pipe, can and container, portfolio of the combined Company. corrosion inhibitors, metal drawing and forming fluids, die hydraulic fluids, specialty greases, offshore treatment chemicals. A substantial portion of the Company’s with the balance being handled through distributors and regularly, work either by adapting the Company’s chemical industry comprises many companies similar in Houghton. of fluids, including general lubricants, while others have technical services to individual customers. Competition the needs of the customer, render As part of the Company’s the Company acts as a principal, revenues are recognized Where the Company acts as an agent, revenue is recognized on the Company for ordering the goods. the Company considers whether it is primarily responsible the specified good has been transferred to the customer Company transferred third-party products under arrangements 42.5 48.0 47.1 million for the years ended December 31, 2020, A significant portion of the Company’s steel, aluminum, automobiles, aircraft, industrial equipment, business cycles as those experienced by these manufacturers and correlated to the volume of global production within the of such industries. metalworking customers and generally use higher 2020, authority) accounted for approximately 10 % of consolidated net sales, with its largest customer accounting 3 % of consolidated net sales. Revenue Recognition Model The Company applies the FASB’s amount that reflects the consideration to which the Company customers. the contract with a customer; (ii) identify the performance the transaction price to the performance obligations in the performance obligation. The Company identifies a contract with a customer when a identifies the rights of the parties; identifies the payment collect the consideration to which it will be entitled in most instances, the Company’s also enter into a sales agreement which outlines a purchase orders for that customer. the specific customer purchase order. customer purchase order, the duration certain practical expedients and omit certain disclosures of one year or less as permitted by the FASB. The Company identifies a performance obligation in a from other obligations in the contract and for which the with other resources that are readily available to consideration it expects to be entitled to in exchange consideration, significant financing elements, amounts more than one performance obligation, the Company depicts the amount of consideration to which the Company obligation. In accordance with the last step of the FASB’s performance obligation in a contract by transferring control Company recognizes revenue over time as the customer the Company’s performance Company’s performance payment, including a profit margin, for performance Company determines the point in time at which a customer obligation by considering when the Company has a right Company has transferred physical possession of the asset; the or the customer has accepted the asset. The Company typically satisfies its performance obligations when products are shipped or delivered to the customer, where the Company’s any Fluidcare or other services provided by the Company and recognizes revenue over time, as the promised services over time related to these services, including labor costs the most indicative measure of the Fluidcare or other service Other Considerations The Company does not have standard payment terms for customers to pay for products or services provided after significant financing arrangements with its customers. its contracts with customers and where applicable, Company records certain third-party license fees in generally include sales-based royalties in exchange for accordance with their agreed-upon terms and when performance subsequent sale. Practical Expedients and Accounting Policy Elections The Company has made certain accounting FASB in applying effects of a significant financing compon Company transfers a promised good or service to the less. amortization period, is one year or less. assessed by a governmental authority that are both imposed collected by the entity from a customer, elected to account for shipping and handling activities that rather than an additional promised service. Contract Assets and Liabilities The Company recognizes a contract asset or receivable or transfers a good in advance of receiving consideration. and only the passage of time is required before payment consideration in exchange for goods contract assets recorded on its Consolidated Balance Sheets A contract liability is recognized when the Company consideration, in advance of performance. for which the Company has received consideration, contract liabilities primarily represent deferred revenue Company satisfying the associated performance obligation. revenue as of the respective opening balance sheet dates are presented within other accrued liabilities in the Company’s 4.0 million and $ 2.2 2020 and 2019, advance payments received and recorded as of December Disaggregated Revenue The Company sells its various industrial process fluids, portfolio. by individual product lines. the Company’s geographic The following tables present disaggregated information represent more than 10% of the Company’s followed then by a disaggregation of the Company’s revenue recognized for the years ended December 31, 2020, 2020 2019 2018 Metal removal fluids 23.9 % 19.9 % 15.4 % Rolling lubricants 21.8 % 21.9 % 25.5 % Hydraulic fluids 13.3 % 13.0 % 13.0 % Net sales for the year ending December 31, 2020 Consolidated Americas EMEA Asia/Pacific Total Customer Industries Metals $ 163,135 $ 107,880 $ 168,096 $ 439,111 Metalworking and other 287,026 275,307 147,203 709,536 450,161 383,187 315,299 1,148,647 Global Specialty Businesses 154,796 68,164 46,070 269,030 $ 604,957 $ 451,351 $ 361,369 $ 1,417,677 Timing of Revenue Recognized Product sales at a point in time $ 580,663 $ 434,549 $ 352,917 $ 1,368,129 Services transferred over time 24,294 16,802 8,452 49,548 $ 604,957 $ 451,351 $ 361,369 $ 1,417,677 Net sales for the year ending December 31, 2019 Consolidated Americas EMEA Asia/Pacific Total Customer Industries Metals $ 171,784 $ 100,605 $ 141,870 $ 414,259 Metalworking and other 220,337 184,965 105,969 511,271 392,121 285,570 247,839 925,530 Global Specialty Businesses 149,428 30,115 28,430 207,973 $ 541,549 $ 315,685 $ 276,269 $ 1,133,503 Timing of Revenue Recognized Product sales at a point in time $ 525,802 $ 310,274 $ 269,228 $ 1,105,304 Services transferred over time 15,747 5,411 7,041 28,199 $ 541,549 $ 315,685 $ 276,269 $ 1,133,503 Net sales for the year ending December 31, 2018 Consolidated Americas EMEA Asia/Pacific Total Customer Industries Metals $ 164,263 $ 101,028 $ 120,627 $ 385,918 Metalworking and other 133,338 115,956 71,875 321,169 297,601 216,984 192,502 707,087 Global Specialty Businesses 122,165 16,613 21,655 160,433 $ 419,766 $ 233,597 $ 214,157 $ 867,520 Timing of Revenue Recognized Product sales at a point in time $ 408,402 $ 233,372 $ 206,112 $ 847,886 Services transferred over time 11,364 225 8,045 19,634 $ 419,766 $ 233,597 $ 214,157 $ 867,520

Leases

Leases	12 Months Ended
Leases	Dec. 31, 2020
Leases [Abstract]
Leases Of Lessee Disclosure [TextBlock]	Note 6 – Leases As previously disclosed in the Company’s standard update regarding the accounting and disclosure January 1, 2019. whether the arrangement conveys the right to control the exchange for consideration. obtains term leases is recognized when the obligation is incurred. The Company has operating leases for certain facilities, vehicles 11 95 Company’s leases includes that the Company is reasonably certain it will exercise. right of use lease assets , other current liabilities and long-term lease liabilities each lease’s commencement the stated borrowing rate for a lease when readily the Company uses its incremental borrowing rate present value of its lease payments. Company considers certain information including fully The Company has immaterial finance leases, which are Consolidated Balance Sheet. Operating lease expense is recognized on a straight-line December 31, 2020 and 2019 was $ 14.2 9.4 December 31, 2020 and 2019 was $ 1.3 1.5 no sublease income for the years ended December 31, Cash paid for operating leases during the years ended December 14.1 9.2 respectively. 6.9 ended December 31, 2020. Supplemental balance sheet information related to the Company’s December 31, December 31, 2020 2019 Right of use lease assets $ 38,507 $ 42,905 Other accrued liabilities 10,901 11,177 Long-term lease liabilities 27,070 31,273 Total operating $ 37,971 $ 42,450 Weighted average 6.0 6.2 Weighted average 4.20% 4.21% Maturities of operating lease liabilities as of December December 31, 2020 For the year ended December 31, 2021 $ 12,342 For the year ended December 31, 2022 8,395 For the year ended December 31, 2023 6,220 For the year ended December 31, 2024 4,610 For the year ended December 31, 2025 3,836 For the year ended December 31, 2026 and beyond 8,141 Total lease payments 43,544 Less: imputed interest (5,573) Present value of lease liabilities $ 37,971

Restructuring and Related Activ

Restructuring and Related Activities	12 Months Ended
Restructuring and Related Activities	Dec. 31, 2020
Restructuring And Related Activities [Abstract]
Restructuring And Related Activities Disclosure [Text Block]	Note 7 – Restructuring and Related Activities The Company’s management synergies associated with the Combination severance costs to reduce total headcount by approximately 350 manufacturing and non-manufacturing facilities. number of factors and is subject to change; however, continue to occur into 2021 under the QH Program approximate one-times the restructuring costs incurred. certain foreign countries and will include severance All costs incurred to date relate to severance costs to reduce in restructuring and related charges in the Consolidated Financial Statements, restructuring and segments’ measure of operating earnings and therefore Activity in the Company’s follows: QH Program Accrued restructuring as of December 31, 2018 $ - Restructuring and related charges 26,678 Cash payments (8,899) Currency translation adjustments 264 Accrued restructuring as of December 31, 2019 18,043 Restructuring and related charges 5,541 Cash payments (15,745) Currency translation adjustments 409 Accrued restructuring as of December 31, 2020 $ 8,248 In connection with the plans for closure of certain to make available for sale certain facilities. recognized a loss on disposal of approximately $ 0.6 Income. 10.0 for-sale as of December 31, 2020 and are

Share-Based Compensation

Share-Based Compensation	12 Months Ended
Share-Based Compensation	Dec. 31, 2020
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Disclosure of Compensation Related Costs, Share-based Payments [Text Block]	Note 8 – Share-Based Compensation The Company recognized the following share-based compensation ended December 31, 2020, 2019 and 2018: 2020 2019 2018 Stock options $ 1,491 $ 1,448 $ 1,053 Non-vested stock awards and restricted stock units 5,012 3,206 2,459 Non-elective and elective 401(k) matching contribution in 3,112 — — Employee stock purchase plan — 84 89 Director stock ownership plan 541 123 123 Performance stock units 840 — — Annual incentive plan (1) — — — Total share-based $ 10,996 $ 4,861 $ 3,724 (1) Refer to the section entitled Annual Incentive Plan Share-based compensation expense is recorded in SG&A, 1.5 0.9 0.1 ended December 31, 2020, expenses. units and non-elective and elective 401(k) matching 2020, described further below. Stock Options Stock option activity under all plans is as follows: Weighted Weighted Average Average Exercise Remaining Aggregate Number of Price Contractual Intrinsic Options (per option) Term Value Options outstanding as of January 1, 2020 144,412 $ 137.15 Options granted 49,115 136.64 Options exercised (83,191) 128.42 Options outstanding as of December 31, 2020 110,336 $ 143.51 5.2 $ 12,015 Options expected to vest after December 31, 2020 92,890 $ 144.86 5.6 $ 9,990 Options exercisable as of December 31, 2020 17,446 $ 136.32 3.4 $ 2,025 The total intrinsic value of options exercised during the years ended $6.5 million, $2.5 $2.0 the underlying security and the strike price of a related A summary of the Company’s Weighted Average Weighted Weighted Number Remaining Average Number Average Range of of Options Contractual Exercise Price of Options Exercise Price Exercise Prices Outstanding Term (per option) Exercisable (per option) $ 70.01 - $ 80.00 2,133 1.0 $ 72.12 2,133 $ 72.12 $ 80.01 - $ 90.00 1,309 1.0 87.30 1,309 87.30 $ 90.01 - $ 130.00 — — — — — $ 130.01 - $ 140.00 51,732 6.0 136.54 2,617 134.60 $ 140.01 - $ 150.00 — — — — — $ 150.01 - $ 160.00 55,162 4.8 154.14 11,387 154.37 110,336 5.2 143.51 17,446 136.32 As of December 31, 2020, unrecognized compensation expense $1.2 million, $0.3 $0.1 1.9 The Company granted stock options under its LTIP during 2020, Black-Scholes option pricing model and the assumptions 2020 2019 2018 2017 Number of stock options granted 49,115 51,610 35,842 42,477 Dividend yield 0.99 % 1.12 % 1.37 % 1.49 % Expected volatility 31.57 % 26.29 % 24.73 % 25.52 % Risk-free interest rate 0.36 % 1.52 % 2.54 % 1.67 % Expected term (years) 4.0 4.0 4.0 4.0 The fair value of these options is being amortized on a compensation expense recorded on each award during 2020 2019 2018 2020 Stock option awards $ 385 $ — $ — 2019 Stock option awards 698 665 — 2018 Stock option awards 357 364 310 2017 Stock option awards 51 369 367 Restricted Stock Awards Activity of non-vested restricted stock awards granted Number of Weighted Average Shares Date Fair Value Nonvested awards, December 31, 2019 64,500 $ 152.67 Granted 28,244 145.63 Vested (19,195) 148.15 Forfeited (1,781) 150.27 Nonvested awards, December 31, 2020 71,768 $ 151.17 The fair value of the non-vested stock is based on the trading Company adjusts the grant date fair value for expected 31, 2020, unrecognized compensation expense related to $4.7 remaining period of 1.6 Restricted Stock Units Activity of non-vested restricted stock units granted under Number of Weighted Average Units Date Fair Value Nonvested awards, December 31, 2019 8,655 $ 152.09 Granted 6,030 141.65 Vested (1,791) 141.92 Forfeited (2,049) 153.50 Nonvested awards, December 31, 2020 10,845 $ 147.70 The fair value of the non-vested restricted stock units is based grant. December 31, 2020, unrecognized compensation expense $0.8 average remaining period of 2.0 Performance Stock Units In March 2020, the Company included performance settled in a certain number of shares subject to market that may ultimately be issued as settlement for each 0 % up to 200 % of the target award, subject to the achievement of the Company’s Midcap 400 Materials group. from January 1, 2020 through December 31, 2022. Compensation expense for PSUs is measured based on the three-year vesting period. and using the following assumptions: (i) a risk-free 0.28 %; (ii) an expected term of 3.0 historical volatility for each of the companies in the As of December 31, 2020, the Company estimates that it will issue 20,000 date of the award based on the conditions of the 31, 2020, there was approximately $ 2.5 to recognize over a weighted-average period of 2.2 Annual Incentive Plan The Company maintains an Annual Incentive Plan performance-based and time-based vesting conditions. quarters of 2020, it was the Company’s the AIP in 2020 was recorded as a component of share In the fourth quarter of 2020, the Company determined based compensation associated with the AIP during based compensation expense to incentive compensation. AIP expense within the Company’s of SG&A. As a result of the change, there was an immaterial impact ended December 31, 2020 as the Company no longer considers settlement in shares as a component of its diluted earnings In addition, there was no impact on the Company’s continues to be classified as a liability and included within Company’s Consolidated of 2020. liabilities for the year ended December 31, 2020. Defined Contribution Plan The Company has a 401(k) plan with an employer 50 % of the first 6 % of compensation that is contributed to the plan, with a maximum 3 % of compensation. Additionally, the of service equal to 3 % of the eligible participant's compensation. contributions may be made in cash or in fully vested shares began matching both non-elective and elective 401(k) the year ended December 31, 2020, total contributions 3.1 Employee Stock Purchase Plan In 2000, the Board adopted an Employee Stock Purchase through a payroll deduction plan. each calendar month in which the organized The purchase price of the stock was 85 % of the fair market value on the Investment Date. 15 % discount was expensed on the Investment Date. participant could withdraw all uninvested payment ownership of the Company exceeds five percent of Effective January 1, 2020, the Company 2013 Director Stock Ownership Plan In 2013, the Company adopted the 2013 Director Stock investment in the Company, issuance of up to 75,000 annual cash retainer payable to each of the Company’s Plan. of the applicable calendar year, owns less than 400 % of the annual cash retainer for the applicable calendar year, composite tape of the New York 75 % of the annual cash retainer in Quaker common stock and 25 % of the retainer in cash, unless the director elects to receive a percentage of Quaker common stock, up to 100 % of the annual cash retainer for the applicable year. than the Threshold Amount may elect to receive 100 %) of the annual cash retainer. The annual retainer is $ 0.1

Other Income (Expense)

Other Income (Expense)	12 Months Ended
Other Income (Expense)	Dec. 31, 2020
Other Income and Expenses [Abstract]
Other Income and Other Expense Disclosure [Text Block]	Note 9 – Other Expense, net Other expense, net, for the years ended December 31, 2020, 2020 2019 2018 Income from third party license fees $ 999 $ 1,035 $ 862 Foreign exchange (losses) gains, net (6,082) 223 (807) (Loss) gain on fixed asset disposals, net (871) 58 657 Non-income 3,345 1,118 668 Pension and postretirement benefit costs, non-service components (21,592) (2,805) (2,285) Gain on changes in insurance settlement restrictions of an 18,144 60 90 Other 439 57 173 Total other $ (5,618) $ (254) $ (642) Pension and postretirement benefit costs, non-service components 1.6 million refund in premium and a $ 22.7 described in Note 21 of Notes to Consolidated Financial Statements. subsidiary and related insurance insolvency recovery relate designated solely to be used for settlement of asbestos insolvent insurance carrier with respect to previously Consolidated Financial Statements. include foreign currency transaction losses of approximately 0.4 1.0 0.4 hyper-inflationary accounting for the Company’s approximately $ 0.4 Statements. 0.6 and a $ 0.6

Taxes on Income

Taxes on Income	12 Months Ended
Taxes on Income	Dec. 31, 2020
Taxes on Income and Uncertain Tax Positions [Abstract]
Taxes on Income [Text Block]	Note 10 – Taxes On December 22, 2017, the U.S. government enacted U.S. Tax Reform dividends from certain foreign subsidiaries and imposed of certain foreign subsidiaries that is payable over eight Following numerous regulations, notices, and other formal Department of Treasury, elected to pay its $ 15.5 31, 2020, $ 7.0 8.5 As of December 31, 2020, the Company has a deferred 5.9 which primarily represents the Company’s earnings to the U.S. Taxes on income as follows: 2020 2019 2018 Current: Federal $ (1,359) $ (239) $ 6,583 State 1,171 352 (1,844) Foreign 33,173 26,213 12,114 32,985 26,326 16,853 Deferred: Federal (28,437) (9,267) 7,859 State (3,087) (396) (173) Foreign (6,757) (14,579) 511 Total $ (5,296) $ 2,084 $ 25,050 The components of earnings before income taxes for the 2020 2019 2018 U.S. $ (66,585) $ (46,697) $ 27,387 Foreign 93,724 75,601 55,711 Total $ 27,139 $ 28,904 $ 83,098 Total deferred 2020 2019 Retirement benefits $ 15,237 $ 15,142 Allowance for doubtful accounts 2,316 2,253 Insurance and litigation reserves 842 1,002 Performance incentives 5,914 7,213 Equity-based compensation 1,282 1,050 Prepaid expense 756 2,976 Insurance settlement — 3,895 Operating loss carryforward 16,693 16,044 Foreign tax credit and other credits 24,873 34,384 Interest 16,812 11,479 Restructuring reserves 1,121 2,167 Right of use lease assets 9,346 10,015 Royalties and license fees — 2,156 Inventory reserves 2,225 2,163 Research and development 7,974 2,580 Other 3,005 1,317 108,396 115,836 Valuation (21,511) (13,834) Total deferred $ 86,885 $ 102,002 Depreciation 15,473 17,754 Foreign pension and other 1,807 1,269 Amortization and other 222,794 254,359 Lease liabilities 9,151 9,965 Outside basis in equity investment 7,938 6,776 Unremitted Earnings 5,919 8,228 Total deferred $ 263,082 $ 298,351 The Company has $ 11.3 8.0 million has been established against this amount resulting 3.3 expected impact of the reversal of existing taxable temporary and determined that $ 3.3 liabilities. 5 20 carryforward period. 1.0 The Company has $ 5.4 allowance of $ 1.7 5.4 able to be utilized. indefinite carryforward period. 0.6 foreign deferred tax assets. In conjunction with the Combination, the Company 41.8 between 2019 and 2028. 10 carry forward was $ 33.7 8.2 analyzed the expected impact of the utilization of foreign income, overall domestic loss recapture, and annual limitations due Code. 24.9 10.2 allowance reflecting the amount of credits that are not The Company also acquired disallowed interest deferred 14.0 interest may be carried forward indefinitely. carryforwards based on projected US taxable income 2022. 15.7 sheet. As of December 31, 2020, the Company had deferred tax 222.8 intangibles resulting from the Combination and Norman As part of the Combination, the Company acquired a 50 % interest in the Korea Houghton Corporation joint venture and recorded a $ 7.9 The following are the changes in the Company’s 2019 and 2018: Effect of Balance at Purchase Additional Allowance Exchange Balance Beginning Accounting Valuation Utilization Rate at End of Period Adjustments Allowance and Other Changes of Period Valuation Year $ 13,834 $ 7,148 $ 2,738 $ (2,153) $ (56) $ 21,511 Year $ 7,520 $ 13,752 $ 832 $ (8,227) $ (43) $ 13,834 Year $ 7,401 $ — $ 650 $ (471) $ (60) $ 7,520 The Company’s net deferred and 2019 as follows: 2020 2019 Non-current deferred tax assets $ 16,566 $ 14,745 Non-current deferred tax liabilities 192,763 211,094 Net deferred tax liability $ (176,197) $ (196,349) The following is a reconciliation of income taxes at the Federal years ended December 31, 2020, 2019 and 2018: 2020 2019 2018 Income tax provision at the Federal statutory tax rate $ 5,699 $ 6,070 $ 17,458 Unremitted earnings (2,308) (4,383) 7,857 Tax law changes (1,059) (416) (3,118) Sub part F / Global intangible low taxed income 5,140 574 2,095 Pension settlement (2,247) — — Foreign derived intangible income (7,339) (1,699) (1,034) Non-deductible acquisition expenses 131 1,743 1,019 Withholding taxes 7,809 8,621 1,161 Foreign tax credits (4,699) (3,787) (1,911) Share-based compensation 335 (540) 259 Foreign tax rate differential 596 920 1,081 Research and development credit (475) (306) (230) Uncertain tax positions 1,990 899 (79) State income tax provisions, net (2,245) (117) 196 Non-deductible meals and entertainment 290 318 415 Intercompany transfer of intangible assets (4,384) (5,318) — Miscellaneous items, net (2,530) (495) (119) Taxes on income $ (5,296) $ 2,084 $ 25,050 Pursuant to U.S. Tax 15.5 undistributed earnings of non-U.S. subsidiaries. and dividend distribution taxes, if these undistributed additional third-party debt was incurred resulting in reducing leverage in upcoming years. 5.9 primarily represents the estimate of the non-U.S. Company’s current inten and certain other growth initiatives outside of the U.S. approximately $ 322.6 substantially offset by foreign tax credits (subject tax expense. As of December 31, 2020, the Company’s 22.2 Company had accrued approximately $ 3.9 3.0 31, 2020. 19.1 Company had accrued approximately $ 3.1 2.3 31, 2019. The Company continues to recognize interest and penalties on income before equity in net income of associated companies an expense of less than $ 0.1 0.6 Statement of Income for the year ended December 31, 0.2 0.2 interest (net of expirations and settlements) in its Consolidated credit of $ 0.2 0.1 Statement of Income for the year ended December 31, The Company estimates that during the year ending December unrecognized tax benefits by approximately $ 1.5 positions. for unrecognized tax benefits with regard to existing tax with regard to new tax positions for the year ending December A reconciliation of the beginning and ending amounts and 2018, respectively, 2020 2019 2018 Unrecognized tax benefits as of January 1 $ 19,097 $ 7,050 $ 6,761 Increase (decrease) in unrecognized tax benefits taken 2,025 (28) (183) Increase in unrecognized tax benefits taken in current period 3,095 1,935 2,023 Decrease in unrecognized tax benefits due to lapse of statute of (3,659) (1,029) (1,292) Increase in unrecognized tax benefits due to acquisition 597 11,301 — Increase (decrease) due to foreign exchange rates 997 (132) (259) Unrecognized tax benefits as of December $ 22,152 $ 19,097 $ 7,050 The amount of net unrecognized tax benefits above that, if rate is $ 14.7 13.3 2.2 The Company and its subsidiaries are subject to U.S. Federal income tax jurisdictions. 2006 , Brazil from 2011 , Mexico, the Netherlands and China from 2015 , Spain, Germany and the United Kingdom from 2016 , Canada and the U.S. from 2017 , India from fiscal year beginning April 1, 2018 2011 . As previously reported, the Italian tax authorities have S.r.l., relating to the tax Mutual Agreement Procedures (“MAP”) of the Organization In 2020, the respective tax authorities in Italy, the Company has accepted. As a result, the Company has 0.9 proceedings, net of refunds expected to be received from Company believes it has adequate reserves for uncertain Houghton Italia, S.r.l 2014 through 2018. 5.8 related to this audit. purchase accounting related to the Combination. escrow by Houghton’s former 5.8 established through purchase accounting. Houghton Deutschland GmbH is also under audit by audit findings, primarily related to transfer pricing, the 0.9 this amount, $ 0.8 claim with Houghton’s 0.8 indemnification receivable has also been established 0.8

Earnings Per Share

Earnings Per Share	12 Months Ended
Earnings Per Share	Dec. 31, 2020
Earnings Per Share [Abstract]
Earnings Per Share [Text Block]	Note 11 – Earnings Per Share The following table summarizes earnings per share calculations 2020 2019 2018 Basic earnings per common share Net income attributable to Quaker Chemical Corporation $ 39,658 $ 31,622 $ 59,473 Less: income allocated to participating securities (148) (90) (253) Net income available to common shareholders $ 39,510 $ 31,532 $ 59,220 Basic weighted average common shares outstanding 17,719,792 15,126,928 13,268,047 Basic earnings per common share $ 2.23 $ 2.08 $ 4.46 Diluted earnings per common share Net income attributable to Quaker Chemical Corporation $ 39,658 $ 31,622 $ 59,473 Less: income allocated to participating securities (148) (90) (252) Net income available to common shareholders $ 39,510 $ 31,532 $ 59,221 Basic weighted average common shares outstanding 17,719,792 15,126,928 13,268,047 Effect of dilutive securities 31,087 36,243 36,685 Diluted weighted 17,750,879 15,163,171 13,304,732 Diluted earnings per common share $ 2.22 $ 2.08 $ 4.45 The Company’s calculation the year ended December 31, 2019 was impacted by the 4.3 million shares issued as a component of the consideration transferred 24.5 % of the common stock of the Company immediately after the closing. per share calculation because the effect would 945 108 1,808

Restricted Cash

Restricted Cash	12 Months Ended
Restricted Cash	Dec. 31, 2020
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents [Abstract]
Cash And Cash Equivalents Disclosure [Text Block]	Note 12 – Restricted Cash Prior to December 2020, the Company had restricted cash recorded in other assets related to proceeds from an inactive subsidiary of the Company which previously executed separate settlement and release agreements with two of its insurance carriers for an original total value of $35.0 million. of defense associated with the subsidiary’s The proceeds of the settlement and release agreements into interest bearing accounts which earned less then $ 0.1 0.2 respectively, offset 1.0 0.8 of the proceeds, a corresponding deferred credit was established During December 2020, the restrictions ended on these the cash into an operating account. 18.1 on its Consolidated Statement of Income in Other expense, liability to pay claims and associated with the inactive 26 of Notes to Consolidated Financial Statements. The following table provides a reconciliation of cash, 2017: 2020 2019 2018 2017 Cash and cash equivalents $ 181,833 $ 123,524 $ 104,147 $ 89,879 Restricted cash included in other current assets 62 353 — — Restricted cash included in other assets — 19,678 20,278 21,171 Cash, cash equivalents and restricted cash $ 181,895 $ 143,555 $ 124,425 $ 111,050

Accounts Receivable and Allowan

Accounts Receivable and Allowance for Doubtful Accounts	12 Months Ended
Accounts Receivable and Allowance for Doubtful Accounts	Dec. 31, 2020
Accounts Receivable and Allowance for Doubtful Accounts [Abstract]
Accounts Receivable and Allowance for Doubtful Accounts [Text Block]	Note 13 – Accounts Receivable and Allowance for Doubtful Accounts As of December 31, 2020 and 2019, the Company $386.1 $387.7 respectively. The Company recognizes an allowance for credit losses, which expect to collect over its contractual life, considering conditions. share similar credit risk characteristics. specific collectability facts and circumstances for each the associated collection risk the Company estimates for certain accounts receivable based on historical amounts determined to there is no reasonable expectation of recovery. The following are changes in the allowance for doubtful Exchange Rate Balance at Changes Write-Offs Changes Balance Beginning to Costs and Charged to and Other at End of Period Expenses Allowance Adjustments of Period Allowance for Doubtful Accounts Year $ 11,716 $ 3,582 $ (2,187) $ 34 $ 13,145 Year $ 5,187 $ 1,925 $ (322) $ 4,926 $ 11,716 Year $ 5,457 $ 493 $ (295) $ (468) $ 5,187 Included in exchange rate changes and other adjustments for accounts of $ 5.0 Note 2 of Notes to Consolidated Financial Statements. December 31, 2018 is a reclassification of $ 0.3

Inventories

Inventories	12 Months Ended
Inventories	Dec. 31, 2020
Inventories [Abstract]
Inventories [Text Block]	Note 14 – Inventories Inventories, net, as of December 31, 2020 and 2019 were 2020 2019 Raw materials and supplies $ 86,148 $ 82,058 Work in 101,616 92,892 Total inventories, $ 187,764 $ 174,950

Property, Plant and Equipment

Property, Plant and Equipment	12 Months Ended
Property, Plant and Equipment	Dec. 31, 2020
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment [Text Block]	Note 15 – Property, Property, plant and 2020 2019 Land $ 33,009 $ 34,686 Building and improvements 135,595 130,462 Machinery and equipment 246,242 225,636 Construction in progress 8,407 8,050 Property, plant and 423,253 398,834 Less: accumulated depreciation (219,370) (185,365) Total property, $ 203,883 $ 213,469 As of December 31, 2020, PP&E includes $ 0.4 In connection with the plans for closure of certain facilities, certain buildings and land with an aggregate book value of approximately $10.0 million continue to be held-for-sale as of December 31, 2020 and are recorded in other current assets on the Company’s Consolidated Balance Sheet.

Goodwill and Intangible Assets

Goodwill and Intangible Assets	12 Months Ended
Goodwill and Intangible Assets	Dec. 31, 2020
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill And Intangible Assets Disclosure [Text Block]	Note 16 – Goodwill and Other Intangible Assets Changes in the carrying amount of goodwill for the Global Specialty Americas EMEA Asia/Pacific Businesses Total Balance as of December 31, 2018 $ 28,464 $ 17,423 $ 13,149 $ 24,297 $ 83,333 Goodwill additions 188,494 114,167 130,091 91,545 524,297 Currency translation adjustments (573) 1,428 (1,513) 233 (425) Balance as of December 31, 2019 216,385 133,018 141,727 116,075 607,205 Goodwill additions 1,485 531 — 1,329 3,345 Currency translation and other (4,628) 6,613 16,363 2,314 20,662 Balance as of December 31, 2020 $ 213,242 $ 140,162 $ 158,090 $ 119,718 $ 631,212 Other adjustments in the table above includes updates to goodwill to each of the Company’s 2.6 in the Americas, a $ 1.4 8.0 0.5 Specialty Businesses. Gross carrying amounts and accumulated amortization as follows: Gross Carrying Accumulated Amount Amortization 2020 2019 2020 2019 Customer lists and rights to sell $ 839,551 $ 792,362 $ 99,806 $ 49,932 Trademarks, formulations and product 166,448 157,049 30,483 21,299 Other 6,372 6,261 5,824 5,776 Total definite $ 1,012,371 $ 955,672 $ 136,113 $ 77,007 The Company recorded $ 55.9 26.7 7.3 31, 2020, 2019 and 2018, respectively. Estimated annual aggregate amortization expense for For the year ended December 31, 2021 $ 58,752 For the year ended December 31, 2022 58,590 For the year ended December 31, 2023 58,361 For the year ended December 31, 2024 57,935 For the year ended December 31, 2025 57,263 The Company has four indefinite-lived intangible 205.1 204.0 million of indefinite-lived intangible assets for trademarks and Company had four indefinite-lived intangible assets for trademarks 243.1 The Company completes its annual goodwill and indefinite each year, or more frequently if triggering completed its annual impairment assessment during the The Company continually evaluates financial performance, interim period impairment test for one or more of As of March 31, 2020, the Company evaluated the initial impact and uncertainty in the economic outlook as a result of carrying value of any of the Company’s concluded that the impact of COVID-19 did not represent reporting units or indefinite-lived and long-lived assets, except indefinite-lived intangible assets. The determination of estimated fair value of the Houghton based on a relief from royalty valuation method which estimates and assumptions, including assumptions with respect well as revenue growth rates and terminal growth rates. decrease in projected legacy Houghton net sales in the legacy Houghton net sales as well as an increase in the WACC Company concluded that the estimated fair values of less than their carrying values. 38.0 tradename, to write down the carrying values of these intangible of 2020. As of December 31, 2020, the Company continued to and the volatility and uncertainty in the economic outlook than not that the carrying value of any of the Company’s recoverable. with regards to any of the Company’s While the Company concluded that the impact of COVID-19 of its other long-lived or indefinite-lived assets or reporting the Company’s current significantly extended, then the Company may conclude further interim quantitative impairment tests, which could

Investments in Associated Compa

Investments in Associated Companies	12 Months Ended
Investments in Associated Companies	Dec. 31, 2020
Investments in Associated Companies [Abstract]
Investments in Associated Companies [Text Block]	Note 17 – Investments in Associated Companies As of December 31, 2020, the Company held a 50 % investment in and had significant influence over Nippon Ltd. (“Nippon Japan”), Kelko Quaker Chemical, S.A. Combination, and held a 32 % investment in and had significant influence over Primex, Consolidated Financial Statements. The carrying amount of the Company’s 95.8 investments of $ 68.3 19.4 7.8 0.3 Panama. The Company also has a 50 % equity interest in Kelko Venezuela. economic circumstances and other restrictions in Venezuela, influence over this affiliate. As of December 31, 2020 and 2019, the Company no The following table is a summary of equity income in associated 2020, 2019 and 2018: Year 2020 2019 2018 Houghton Korea $ 5,241 $ 2,337 $ — Nippon Japan 853 850 713 Kelko Panama 107 55 222 Kelko Venezuela — — (138) Primex 1,151 1,822 966 Total equity $ 7,352 $ 5,064 $ 1,763 As the Combination closed on August 1, 2019, the Company December 31, 2019 Consolidated Statement of Income.

Other Assets

Other Assets	12 Months Ended
Other Assets	Dec. 31, 2020
Other Assets [Abstract]
Other Assets [Text Block]	Note 18 – Other Non-Current Assets Other non-current assets as of December 31, 2020 2020 2019 Uncertain tax positions $ 7,209 $ 4,993 Pension assets 6,748 — Debt issuance costs 5,919 7,571 Indemnification assets 7,615 4,006 Supplemental retirement income program 1,961 1,782 Restricted insurance settlement — 19,678 Other 2,344 2,403 Total other $ 31,796 $ 40,433 During December 2020, the restrictions lapsed over certain asbestos claims at an inactive subsidiary of the Company. certain Houghton foreign subsidiaries for which the Company indemnification under the terms of the Combination corresponding uncertain tax position recorded in foreign pension plan’s represented by the line Pension assets in the table above.

Other Current Liabilities

Other Current Liabilities	12 Months Ended
Other Current Liabilities	Dec. 31, 2020
Other Accrued Liabilities [Abstract]
Other Accrued Liabilities Disclosure [Text Block]	Note 19 – Other Accrued Liabilities Other accrued liabilities as of December 31, 2020 and 2020 2019 Non-income taxes $ 26,080 $ 21,176 Current income taxes payable 13,124 7,503 Professional fees, legal, and acquisition-related accruals 11,437 17,103 Short-term lease liabilities 10,901 11,177 Selling expenses and freight accruals 10,475 11,350 Customer advances and sales return reserves 6,380 5,554 Other 13,710 9,742 Total other $ 92,107 $ 83,605

Debt

Debt	12 Months Ended
Debt	Dec. 31, 2020
Debt [Abstract]
Debt [Text Block]	Note 20 – Debt Debt as of December 31, 2020 and 2019 includes the As of December 31, 2020 As of December 31, 2019 Interest Outstanding Interest Outstanding Rate Balance Rate Balance Credit Facilities: Revolver 1.65% $ 160,000 3.20% $ 171,169 U.S. Term Loan 1.65% 570,000 3.20% 600,000 EURO Term Loan 1.50% 157,062 1.50% 151,188 Industrial development bonds 5.26% 10,000 5.26% 10,000 Bank lines of credit and other debt obligations Various 2,072 Various 2,608 Total debt $ 899,134 $ 934,965 Less: debt issuance costs (11,099) (14,196) Less: short-term and current portion of long-term debts (38,967) (38,332) Total long $ 849,068 $ 882,437 Credit facilities The Company’s primary 400.0 revolver (the “Revolver”), a $ 600.0 150.0 million (as of August 1, 2019) Euro equivalent term loan (the “Term Loans” August 2024. borrowers. 300.0 request if there are lenders who agree to accept additional Borrowings under the Credit Facility bear interest at a base consolidated net leverage ratio. ceases to be reported. ended December 31, 2020 was approximately 2.2 %. borrowings under the Credit Facility was approximately 1.6 %. Facility, the Company 0.2 % to 0.3 % depending on the Company’s leverage ratio to the lenders under the Revolver in capacity under the Revolver of approximately $ 234 6 31, 2020. accrue on September 29, 2017. the Company paid approximately $ 6.3 The Credit Facility is subject to certain financial and The Company’s initial consolidated net debt to consolidated adjusted EBITDA ratio could not exceed 4.25 to 1, with step downs in the permitted ratio over the term of the Credit Facility. As of December 31, 2020, the consolidated net debt to adjusted EBITDA may not exceed 4.00 to 1. The Company’s consolidated adjusted EBITDA to interest expense ratio cannot be less than 3.0 to 1 over the term of the agreement. The Credit Facility also prohibits the payment of cash dividends if the Company is in default or if the amount of the dividend paid annually exceeds the greater of $50.0 million and 20% of consolidated adjusted EBITDA unless the ratio of consolidated net debt to consolidated adjusted EBITDA is less than 2.0 to 1, in which case there is no such limitation on amount. As of December 31, 2020 and December 31, 2019, the Company was in compliance with all of the Credit Facility covenants. principal amortization during their five-year terms, 5.0 % amortization of the principal balance due in years 7.5 % in year 3, and 10.0 % in years 4 and 5, with the remaining principal amount due at Company made four quarterly amortization payments 37.6 guaranteed by certain of the Company’s the Company and the domestic subsidiary guarantors, are guaranteed only by certain foreign subsidiaries on The Credit Facility required the Company to fix its variable satisfy this requirement as well as to manage the in November 2019, the Company entered into $ 170.0 1.64 % plus an applicable margin as provided in the Credit time the Company entered into the swaps, and as base rate plus an applicable margin, was 3.1 %. The Company capitalized $ 23.7 Approximately $ 15.5 term debt on the Company’s 8.3 Revolver and recorded within other assets on the Company’s amortized into interest expense over the five-year term $ 11.1 14.2 2020 and 2019, the Company had $ 5.9 7.6 Industrial development bonds As of December 31, 2020 and 2019, the Company 10.0 principal amount due in 2028 . The Company also had a $ 5.0 5.60 %, which matured and was paid off during the fourth quarter of 2018 . Bank lines of credit and other The Company has certain unsecured bank lines of credit collateralized. free municipality-related loans, local credit facilities of capacity under these arrangements as of December 40 In addition to the bank letters of credit described in sheet arrangements include certain financial and other outstanding as of December 31, 2020 were approximately 10 The Company incurred the following debt related expenses of Income: Year 2020 2019 2018 Interest expense $ 23,552 $ 16,788 $ 6,158 Amortization of debt issuance costs 4,749 1,979 70 Total $ 28,301 $ 18,767 $ 6,228 Based on the variable interest rates associated with the Credit the Company’s total debt At December 31, 2020, annual maturities on long-term to long-term debt attributed to capitalized and unamortized 2021 $ 38,795 2022 57,850 2023 76,943 2024 715,227 2025 231

Pension and Postretirement Bene

Pension and Postretirement Benefits	12 Months Ended
Pension and Postretirement Benefits	Dec. 31, 2020
Pension and Other Postretirement Benefits [Abstract]
Pension And Other Postretirement Benefits Disclosure [Text Block]	Note 21 – Pension and Other Postretirement The following table shows the funded status of the Company’s Balance Sheets as of December 31, 2020 and 2019: Other Post- Pension Benefits Retirement Benefits 2020 2019 2020 2019 Foreign U.S. Total Foreign U.S. Total U.S. U.S. Change in benefit obligation Gross benefit obligation at beginning of year $ 217,893 $ 153,723 $ 371,616 $ 111,316 $ 58,734 $ 170,050 $ 4,266 $ 4,106 Service cost 4,340 491 4,831 3,507 434 3,941 5 6 Interest cost 3,416 2,923 6,339 3,046 3,313 6,359 77 143 Employee contributions 73 — 73 73 — 73 — — Effect of plan amendments — 50 50 30 — 30 — — Curtailment gain (2,324) — (2,324) — — — — — Plan settlements (2,316) (53,494) (55,810) (1,087) — (1,087) — — Benefits paid (5,087) (6,138) (11,225) (3,832) (6,034) (9,866) (250) (384) Plan expenses and premiums paid (135) — (135) (129) — (129) — — Transfer in of business acquisition — — — 85,658 86,414 172,072 — — Actuarial loss (gain) 16,834 12,414 29,248 13,616 10,862 24,478 (864) 395 Translation differences and 14,981 — 14,981 5,695 — 5,695 — — Gross benefit obligation at end of year $ 247,675 $ 109,969 $ 357,644 $ 217,893 $ 153,723 $ 371,616 $ 3,234 $ 4,266 Other Post- Pension Benefits Retirement Benefits 2020 2019 2020 2019 Foreign U.S. Total Foreign U.S. Total U.S. U.S. Change in plan assets Fair value of plan assets at beginning of year $ 195,099 $ 120,550 $ 315,649 $ 94,826 $ 49,415 $ 144,241 $ — $ — Actual return on plan assets 20,367 10,759 31,126 13,458 10,663 24,121 — — Employer contributions 6,912 2,302 9,214 5,223 1,087 6,310 250 384 Employee contributions 73 — 73 73 — 73 — — Plan settlements (2,316) (53,494) (55,810) (1,087) — (1,087) — — Benefits paid (5,087) (6,138) (11,225) (3,832) (6,034) (9,866) (250) (384) Plan expenses and premiums paid (135) (498) (633) (129) (500) (629) — — Transfer in of business acquisition — — — 81,068 65,919 146,987 — — Translation differences 13,876 — 13,876 5,499 — 5,499 — — Fair value of plan assets at end of year $ 228,789 $ 73,481 $ 302,270 $ 195,099 $ 120,550 $ 315,649 $ — $ — Net benefit obligation recognized $ (18,886) $ (36,488) $ (55,374) $ (22,794) $ (33,173) $ (55,967) $ (3,234) $ (4,266) Amounts recognized in the balance sheet consist of: Non-current assets $ 6,748 $ — $ 6,748 $ — $ — $ — $ — $ — Current liabilities (568) (612) (1,180) (359) (2,620) (2,979) (286) (426) Non-current liabilities (25,066) (35,876) (60,942) (22,435) (30,553) (52,988) (2,948) (3,840) Net benefit obligation recognized $ (18,886) $ (36,488) $ (55,374) $ (22,794) $ (33,173) $ (55,967) $ (3,234) $ (4,266) Amounts not yet reflected in net periodic benefit costs and included in accumulated other comprehensive loss: Prior service credit (26) 50 24 1,271 — 1,271 — — Accumulated loss (21,976) (5,532) (27,508) (22,816) (46,560) (69,376) 124 (734) AOCI (22,002) (5,482) (27,484) (21,545) (46,560) (68,105) 124 (734) Cumulative employer contributions (below) or in excess of benefit cost 3,116 (31,006) (27,890) (1,249) 13,387 12,138 (3,358) (3,532) Net benefit obligation recognized $ (18,886) $ (36,488) $ (55,374) $ (22,794) $ (33,173) $ (55,967) $ (3,234) $ (4,266) The accumulated benefit obligation for all defined benefit $344.4 ($109.5 $234.9 million Foreign) and $366.0 $152.9 $213.1 2019, respectively. Information for pension plans with an accumulated benefit 2020 2019 Foreign U.S. Total Foreign U.S. Total Projected benefit obligation $ 32,373 $ 109,969 $ 142,342 $ 217,893 $ 153,723 $ 371,616 Accumulated benefit obligation 30,892 109,540 140,432 213,060 152,930 365,990 Fair value of plan assets 18,074 73,481 91,555 195,099 120,550 315,649 Information for pension plans with a projected 2020 2019 Foreign U.S. Total Foreign U.S. Total Projected benefit obligation $ 32,373 $ 109,969 $ 142,342 $ 217,893 $ 153,723 $ 371,616 Fair value of plan assets 18,074 73,481 91,555 195,099 120,550 315,649 Components of net periodic benefit costs – pension plans: 2020 2019 Foreign U.S. Total Foreign U.S. Total Service cost $ 4,340 $ 491 $ 4,831 $ 3,507 $ 434 $ 3,941 Interest cost 3,416 2,923 6,339 3,046 3,313 6,359 Expected return on plan assets (4,262) (4,810) (9,072) (3,668) (3,227) (6,895) Settlement loss (88) 22,667 22,579 258 — 258 Curtailment charge (1,155) — (1,155) — — — Actuarial loss amortization 886 2,110 2,996 757 2,348 3,105 Prior service (credit) cost amortization (167) — (167) (165) — (165) Net periodic benefit cost $ 2,970 $ 23,381 $ 26,351 $ 3,735 $ 2,868 $ 6,603 2018 Foreign U.S. Total Service cost $ 3,426 $ 383 $ 3,809 Interest cost 2,254 1,847 4,101 Expected return on plan assets (2,228) (2,803) (5,031) Settlement loss 2 — 2 Actuarial loss amortization 881 2,276 3,157 Prior service (credit) cost amortization (175) 59 (116) Net periodic benefit cost $ 4,160 $ 1,762 $ 5,922 Other changes recognized in other comprehensive 2020 2019 Foreign U.S. Total Foreign U.S. Total Net (gain) loss arising during the period $ (1,594) $ 1,536 $ (58) $ 3,826 $ 3,926 $ 7,752 Effect of plan amendment Recognition of amortization in net periodic benefit cost Settlement (loss) (39) (22,667) (22,706) — — — Prior service credit (cost) 1,325 50 1,375 196 — 196 Actuarial loss (758) 3,967 3,209 (1,015) (2,347) (3,362) Curtailment Recognition (3) — (3) — — — Effect of exchange rates on amounts included in AOCI 1,535 — 1,535 (61) — (61) Total recognized comprehensive loss (income) 466 (17,114) (16,648) 2,946 1,579 4,525 Total recognized benefit cost and other comprehensive loss (income) $ 3,436 $ 6,267 $ 9,703 $ 6,681 $ 4,447 $ 11,128 2018 Foreign U.S. Total Net gain arising during period $ (663) $ 453 $ (210) Recognition of amortization in net periodic benefit Prior service credit (cost) 175 (59) 116 Actuarial loss (883) (2,276) (3,159) Effect of exchange rates on amounts included (890) — (890) Total recognized (2,261) (1,882) (4,143) Total recognized other comprehensive loss $ 1,899 $ (120) $ 1,779 Components of net periodic benefit costs – other postretirement 2020 2019 2018 Service cost $ 5 $ 6 $ 7 Interest cost 77 143 130 Actuarial loss amortization (5) — 42 Net periodic benefit costs $ 77 $ 149 $ 179 Other changes recognized in other comprehensive 2020 2019 2018 Net (gain) loss arising during period $ (864) $ 395 $ (443) Amortization of actuarial loss in net periodic benefit costs 5 — (42) Total recognized loss (859) 395 (485) Total recognized other comprehensive (income) loss $ (782) $ 544 $ (306) Weighted-average Other Postretirement Pension Benefits Benefits 2020 2019 2020 2019 U.S. Plans: Discount rate 2.19 % 3.06 % 2.05 % 2.98 % Rate of compensation increase 6.00 % 6.00 % N/A N/A Foreign Discount rate 1.79 % 1.83 % N/A N/A Rate of compensation increase 2.74 % 2.58 % N/A N/A Weighted-average 2019: Other Postretirement Pension Benefits Benefits 2020 2019 2020 2019 U.S. Plans: Discount rate 3.11 % 4.08 % 2.99 % 4.03 % Expected long-term return on plan assets 6.50 % 5.75 % N/A N/A Rate of compensation increase 6.00 % 5.50 % N/A N/A Foreign Plans: Discount rate 2.30 % 2.30 % N/A N/A Expected long-term return on plan assets 2.20 % 3.13 % N/A N/A Rate of compensation increase 2.79 % 2.87 % N/A N/A The long-term rates of return on assets were selected from returns for the asset classes covered by the investment benefits are payable to plan participants. Assumed health care cost trend rates 2020 2019 Health care cost trend rate for next year 5.70 % 5.90 % Rate to which the cost trend rate is assumed to decline (the ultimate trend rate) 4.50 % 4.50 % Year 2037 2037 Plan Assets and Fair Value The Company’s pension by asset category were as follows: Asset Category Target 2020 2019 U.S. Plans Equity securities 10 % 58 % 32 % Debt securities 90 % 36 % 64 % Other 0 % 6 % 4 % Total 100 % 100 % 100 % Foreign Plans Equity securities 37 % 33 % 34 % Debt securities 53 % 45 % 45 % Other 10 % 22 % 21 % Total 100 % 100 % 100 % As of December 31, 2020 and 2019, “Other” consisted principally funds. The following is a description of the valuation methodologies general classification of such instruments pursuant to Cash and Cash Cash and Commingled Funds Investments including and these investments are valued using investments As of December 31, 2020, the foreign pension plan commingled 35 equity securities, 51 14 real estate. Pooled Separate Investments unit value based on the As of December 31, 2020, the U.S. pension plan pooled separate accounts included approximately 61 percent of investments in equity securities and 39 percent of investments in fixed income securities. Fixed Income Investments in foreign pension plans fixed income government which are based on a combination of quoted market models and Insurance Investments in the foreign pension plan insurance contract end, either the reported cash surrender value of the contract the vested benefit obligation are determined based on unobservable regarding returns, fees, the present value of the future cash as a Level 3 investment. Diversified Investments quoted redemption or in an in an active Fixed Income Investments quoted redemption or in an in an active Diversified Investment Fund - Registered Investments redemption and this investment December 31, 62 19 of investments 19 Other – Alternative Investments Investments These investments the present investments. Real Estate The U.S. and foreign pension plans’ investment in real estate consists underlying investments consist of real property which as a Level 3 investment. As of December 31, 2020 and 2019, the U.S. and foreign follows: Fair Value Total Using Fair Value U.S. Pension Assets Fair Value Level 1 Level 2 Level 3 Pooled separate accounts $ 69,385 $ — $ 69,385 $ — Real estate 4,096 — — 4,096 Subtotal U.S. pension plan assets in fair value hierarch $ 73,481 $ — $ 69,385 $ 4,096 Total U.S. pension $ 73,481 Foreign Pension Assets Cash and cash equivalents $ 634 $ 634 $ — $ — Insurance contract 112,920 — — 112,920 Diversified equity securities - registered investment companies 8,851 — 8,851 — Fixed income – foreign registered investment companies 3,711 — 3,711 — Fixed income government securities 37,579 — 37,579 — Real estate 5,679 — — 5,679 Other - alternative investments 10,638 — — 10,638 Sub-total of foreign pension assets in fair value hierarchy $ 180,012 $ 634 $ 50,141 $ 129,237 Commingled funds measured at NAV 2,368 Diversified investment fund - companies measured at NAV 46,409 Total foreign pension $ 228,789 Total pension $ 253,493 $ 634 $ 119,526 $ 133,333 Total pension 48,777 Total pension $ 302,270 Fair Value Total Using Fair Value U.S. Pension Assets Fair Value Level 1 Level 2 Level 3 Cash and cash equivalents $ 450 $ 450 $ — $ — Pooled separate accounts 64,636 — 64,636 — Real estate 4,060 — — 4,060 Subtotal U.S. pension plan assets in fair value hierarch $ 69,146 $ 450 $ 64,636 $ 4,060 Commingled funds measured at NAV 51,404 Total U.S. pension $ 120,550 Foreign Pension Assets Cash and cash equivalents $ 1,502 $ 1,502 $ — $ — Insurance contract 92,657 — — 92,657 Diversified equity securities - registered investment companies 8,604 — 8,604 — Fixed income – foreign registered investment companies 3,021 — 3,021 — Fixed income government securities 32,512 — 32,512 — Real estate 5,521 — — 5,521 Other - alternative investments 9,436 — — 9,436 Sub-total of foreign pension assets in fair value hierarchy $ 153,253 $ 1,502 $ 44,137 $ 107,614 Commingled funds measured at NAV 2,037 Diversified investment fund - companies measured at NAV 39,809 Total foreign pension $ 195,099 Total pension $ 222,399 $ 1,952 $ 108,773 $ 111,674 Total pension 93,250 Total pension $ 315,649 Certain investments that are measured at fair value using value hierarchy. of the fair value hierarchies to the line items presented Changes in the fair value of the plans’ Level 3 investments Insurance Alternative Contract Real Estate Investments Total Balance as of December 31, 2018 $ 79,873 2,382 — $ 82,255 Purchases 3,762 — 1,029 4,791 Assets acquired in business combinations 129 7,058 8,914 16,101 Sales — (238) (278) (516) Settlements (1,730) — — (1,730) Unrealized (losses) gains 12,199 403 (960) 11,642 Currency translation adjustment (1,576) (24) 731 (869) Balance as of December 31, 2019 92,657 9,581 9,436 111,674 Purchases 3,902 18 989 4,909 Settlements (2,027) — — (2,027) Unrealized gains (losses) 8,917 (16) (171) 8,730 Currency translation adjustment 9,471 192 384 10,047 Balance as of December 31, 2020 $ 112,920 $ 9,775 $ 10,638 $ 133,333 In the fourth quarter of 2018, the Company began the plan (“Legacy Quaker U.S. Pension Plan”). determination letter from the Internal Revenue Service during the first quarter of 2020. Benefit Guaranty Corporation requirements, the Company termination basis and the amount necessary to do so 1.8 quarter of 2020, the Company finalized the amount approximately $ 1.6 approximately $ 22.7 losses within AOCI on the balance sheet as of the plan In connection with the Combination, the Company indirectly included in the tables set forth above. employees in the U.K., France and Germany. compensation received for the highest five consecutive years and service and a percentage of compensation The Company contributes to a multiemployer defined (the Cleveland Bakers and Teamsters collective bargaining contract is May 1, 2022 . total plan liabilities were approximately $ 589 of approximately $ 364 bargaining union contract and contributions are 0.1 million during the year ended December 31, 2020. Employer Pension Plan Amendments Act of 1980, imposes multiemployer pension plan if the employer withdraws While the Company may also have additional liabilities imposed benefit pension plan, there is no The Pension Protection Act of 2006 (the “PPA”) years beginning after 2007 for multiemployer plans with example, the plan’s funded deficiency). measures to improve their funded status through a contributions from employers (which may take the form benefits. estimated as such amounts will be likely based on by the plan, and the amount of that future work and Cash Flows Contributions The Company expects to make minimum cash contributions $10.0 $5.9 $4.1 $0.3 Estimated Future Benefit Payments Excluding any impact related to the PPA appropriate, are expected to be paid: Other Post- Pension Benefits Retirement Foreign U.S. Total Benefits 2021 $ 6,658 $ 5,923 $ 12,581 $ 286 2022 6,939 5,298 12,237 278 2023 7,024 6,072 13,096 265 2024 6,745 6,234 12,979 245 2025 7,394 6,228 13,622 226 2025 to 2029 42,522 30,443 72,965 923 The Company maintains a plan under which supplemental under the plan are based on a combination of years of charges of $ 2.5 1.8 1.6 representing the annual accrued benefits under this Defined Contribution Plan The Company has a 401(k) plan with an employer Company previously paid a nonelective contribution the eligible participants’ compensation in the form elective and elective 401(k) matching contributions both non-elective and elective 401(k) contributions in 8 of Notes to Consolidated Financial Statements. 5.7 4.0 3.1 the years ended December 31, 2020, 2019 and 2018,

Other Non-Current Liabilities

Other Non-Current Liabilities	12 Months Ended
Other Non-Current Liabilities	Dec. 31, 2020
Other Non-Current Liabilities [Abstract]
Other Liabilities Disclosure [TextBlock]	Note 22 – Other Non-Current Liabilities Other non-current liabilities as of December 31, 2020 2020 2019 Inactive subsidiary litigation and settlement reserve $ 542 $ 19,678 Non-current income taxes payable 8,500 8,500 Uncertain tax positions (includes interest and penalties) 28,961 24,609 Fair value of interest rate swaps 4,672 415 Environmental reserves 4,610 5,259 Deferred and other long-term compensation 6,257 6,625 Other 1,627 1,298 Total other $ 55,169 $ 66,384 The line item Inactive subsidiary litigation and settlement settlement and has been updated in the current year restricted amounts, as described in Note 12 of Notes to

Equity and Noncontrolling Inter

Equity and Noncontrolling Interest	12 Months Ended
Equity and Noncontrolling Interest	Dec. 31, 2020
Equity [Abstract]
Stockholders' Equity Note Disclosure [Text Block]	Note 23 – Equity and Accumulated Other Comprehensive The Company has 30,000,000 1 , and 17,850,616 17,735,162 issued and outstanding as of December 31, 2020 was primarily related to 49,906 65,548 options and other share activity. The Company is authorized to issue 10,000,000 1 Directors. and limitations of each series. The Company has a share repurchase program that was approved $ 100.0 the years ended December 31, 2020, 2019 and 2018. 86.9 stock remaining to be purchased under this share repurchase The following table shows the reclassifications from and 2019 and 2018: Defined Unrealized Gain (Loss) in Currency Benefit Translation Pension Available-for Derivative Adjustments Plans Sale Securities Instruments Total Balance as of December 31, 2017 $ (31,893) $ (34,093) $ 886 $ — $ (65,100) Other comprehensive (loss) income before (17,429) 1,543 (2,622) — (18,508) Amounts reclassified from AOCI — 3,085 435 — 3,520 Related tax amounts — (1,086) 459 — (627) Balance as of December 31, 2018 (49,322) (30,551) (842) — (80,715) Other comprehensive income (loss) before 4,754 (8,088) 2,951 (415) (798) Amounts reclassified from AOCI — 3,169 (301) — 2,868 Related tax amounts — 937 (557) 95 475 Balance as of December 31, 2019 (44,568) (34,533) 1,251 (320) (78,170) Other comprehensive income (loss) before 41,693 (6,617) 2,848 (4,257) 33,667 Amounts reclassified from AOCI — 24,141 (202) — 23,939 Related tax amounts — (6,458) (555) 979 (6,034) Balance as of December 31, 2020 $ (2,875) $ (23,467) $ 3,342 $ (3,598) $ (26,598) All reclassifications related to unrealized gain (loss) in captive insurance company and are recorded in equity comprehensive income for non-controlling interest are

Fair Value Measurements

Fair Value Measurements	12 Months Ended
Fair Value Measurements	Dec. 31, 2020
Fair Value Disclosures [Abstract]
Fair Value Disclosures [Text Block]	Note 24 – Fair Value The Company has valued its company-owned life insurance measurement as follows: Fair Value Total Using Fair Value Assets Fair Value Level 1 Level 2 Level 3 Company-owned life insurance $ 1,961 $ — $ 1,961 $ — Total $ 1,961 $ — $ 1,961 $ — Fair Value Total Using Fair Value Assets Fair Value Level 1 Level 2 Level 3 Company-owned life insurance $ 1,782 $ — $ 1,782 $ — Total $ 1,782 $ — $ 1,782 $ — The fair values of Company-owned life insurance assets are based terms. not been included.

Hedging Activities

Hedging Activities	12 Months Ended
Hedging Activities	Dec. 31, 2020
General Discussion Of Derivative Instruments And Hedging Activities [Abstract]
Derivative Instruments And Hedging Activities Disclosure [Text Block]	Note 25 – Hedging Activities In order to satisfy certain requirements of the Credit rate risk associated with the Credit Facility, 170.0 year interest rate swaps. flow hedges and, as such, the contracts are marked-to-market AOCI to the extent effective and reclassified becomes probable that the forecasted transaction will not occur. hedges during the year ended December 31, 2018. The balance sheet classification and fair values of the follows: Fair Value Consolidated Balance Sheet December 31, Location 2020 2019 Derivatives designated as cash flow hedges: Interest rate swaps Other non-current liabilities $ 4,672 $ 415 $ 4,672 $ 415 The following table presents the net unrealized loss deferred to December 31, 2020 2019 Derivatives designated as cash flow hedges: Interest rate swaps AOCI $ 3,598 $ 320 $ 3,598 $ 320 The following table presents the net loss reclassified from For the Years December 31, 2020 2019 2018 Amount and location of (expense) income reclassified from AOCI into (expense) income (Effective Portion) Interest expense, net $ (1,754) $ 29 $ — Interest rate swaps are entered into with a limited number contracts through a single payment in a single currency accordance with the Company’s Balance Sheets.

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
Commitments and Contingencies	Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract]
Commitments And Contingencies Disclosure [Text Block]	Note 26 – Commitments and Contingencies In 1992, the Company identified certain soil and groundwater subsidiary. contamination, the principal contaminant of which (“OCWD”) filed a civil complaint against ACP and other investigation and remediation of the contamination in the among other things, to operate the two groundwater treatment from ACP’s site until the concentrations four consecutive quarterly sampling events. met the above condition for closure. additional indoor and outdoor soil vapor testing on and standards and ACP has begun the testing program. closure of the remaining groundwater treatment system authorities. As of December 31, 2020, the Company believes that water remediation program is approximately $ 0.1 1.0 of operation of the treatment system as determined maintenance of the extraction well, groundwater monitoring An inactive subsidiary of the Company that was acquired installed basis, and is among the defendants in numerous discontinued operations in 1991 and has no remaining overwhelming majority of these claims have been subsidiary. that the subsidiary’s total 0.5 Although the Company has also been named as a defendant Company, and These cases were handled by the subsidiary’s responsible for all damages assessed against the subsidiary arising of their policies. primary insurers asserted that the aggregate limits of their these limits to the claims being brought against the subsidiary. and release agreements with the subsidiary in 2005 and 15.0 20.0 The proceeds of both settlements were restricted and could subsidiary’s asbestos litigation. and Funding Agreement, under which the carrier is paying 27 % of defense and indemnity costs incurred by or on behalf subsidiary in connection with asbestos bodily injury either party by providing a minimum of two years prior given under this agreement. At the end of the term of the agreement, the subsidiary application of the policy limits. carrier are resolved adversely to the subsidiary and all coverage from a state guarantee fund established following liabilities in respect of claims may exceed the assets and coverage If the subsidiary’s assets and against the Company because of the parent-subsidiary relationship. or that the Company would be held to have liability for any evaluating the nature of the claims filed against the subsidiary the potential availability of additional insurance insurance and the Company’s the parent-subsidiary relationship, the Company believes been successful to date having any claims naming it litigation for some time, it is not possible to estimate additional As a result of the closing of the Combination on August Houghton domestic and foreign properties currently or previously require the Company to perform long-term monitoring Company continually evaluates its obligations related to such incurred over the next 28 years, has estimated the present discounted basis, to be between approximately $ 5.5 6.5 6.0 accrued within other accrued liabilities and other non-current December 31, 2020. 6.6 matters. Houghton’s Sao Paulo, environmental assessment as part of a permit renewal select areas of the site. based on the result of the investigations. complete additional investigations to further delineate Companhia Ambiental do Estado de São Paulo (“CETESB”). Technical Opinion to CETESB in 2018 based on CETESB requirements. conduct periodic monitoring for methane in soil vapors, assessment, update the human health risk assessment, develop and provide a revised intervention plan. In December 2019, the site submitted a report on the activities completed of the remedial feasibility study and recommended remedial participation in certain payments in connection with four waste cleanup activities under the U.S. Federal Superfund (“PRP”) by the Environmental Protection Agency along cleanup activities at certain other foreign subsidiaries. term monitoring as well as operating and maintenance The Company believes, although there can be no assurance it has made adequate accruals for costs associated with other 0.1 million and $ 0.2 environmental assessments and remediation costs. During the fourth quarter of 2020, one of the Company’s country where certain of its subsidiaries operate which the subsidiary sells. be due from the Company’s with respect to this indirect tax, as the application of peer companies and taxing authorities. applicability of this indirect tax to the Company’s only sufficient to establish a range of probable Based on this evaluation, the Company recorded a liability 1.5 range of probable indirect tax owed, including interest amounts in part relate to a Houghton entity acquired submitted an indemnification claim with Houghton’s recorded a receivable in other assets for approximately $ 1.1 1.5 for which the Company anticipates being indemnified. approximately $ 0.4 believes there is substantial uncertainty with respect to this time, the Company’s assessed under these indirect tax laws, would be approximately 0.4 34 9 of estimated income tax deductions and approximately $ 22 owners. The Company is party to other litigation which management Company’s results of purchase obligations.

Subsequent Events

Subsequent Events	12 Months Ended
Subsequent Events	Dec. 31, 2020
Subsequent Events Abstract [Abstract]
Subsequent Events Disclosure [Text Block]	Note 27 – COVID-19 Global Pandemic In early 2020, a global outbreak of COVID-19 occurred business, and which continued throughout the rest of the COVID-19 outbreak as a pandemic. but not limited to the U.S., the European Union, and restrictions, shutdowns of businesses deemed nonessential, This outbreak and associated measures to reduce its spread have caused significant disruptions The disruptions and negative impact to the Company subsidiaries in the first quarter of 2020 and beginning sites as the global economy slowed significantly in response COVID-19 pandemic is having on the Company, Company operates. Further, management continues to affected financial reporting processes, internal control circumstances have presented and are expected to continue COVID-19 has had a material impact on financial reporting controls and procedures. The full extent of the COVID-19 pandemic related behavior intended to reduce its spread are uncertain as of authorities continue to evolve globally. have on the Company’s spread of the virus, the incidence and severity of restrictions and business closures imposed by governments impacted countries. To the extent could reduce the availability, interrupt the Company’s and the Company’s liquidity with respect to this pandemic, the Company cannot reasonably impact the Company’s results

Significant Accounting Polici_2

Significant Accounting Policies (Policies)	12 Months Ended
Significant Accounting Policies (Policies)	Dec. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Principles of consolidation [Policy Text Block]	All majority-owned subsidiaries are included in the with appropriate elimination of intercompany balances and
Consolidation, Variable Interest Entity [Policy Text Block]	The Company is not the primary beneficiary of any Company’s consolidated
Equity and Cost Method Investments [Policy Text Block]	Investments in associated companies (less than majority- owned and in which the Company has significant income or losses in these investments in associated companies periodically reviews these investments for impairments decline in market value or other impairment indicators are
Translation of foreign currency [Policy Text Block]	Assets and liabilities of non-U.S. subsidiaries and associated comp U.S. dollars at the respective rates of exchange prevailing average exchange rates prevailing during the year. as accumulated other comprehensive (loss) income of the underlying entity or asset. currency.
Cash and Cash Equivalents [Policy Text Block]	The Company invests temporary and excess funds in money market securities and financial instruments having maturities within 90 days. The Company considers all highly liquid investments with original maturities of three months or less to be cash equivalents.
Inventories [Policy Text Block]	Inventories: Inventories are valued at the lower of cost or net realizable
Long-lived assets [Policy Text Block]	Property, plant and is computed using the straight-line method on an individual improvements, 10 45 1 15 whenever changes in circumstances or current events indicate of undiscounted cash flows produced by the asset, or the whether an impairment exists. amount of the assets and their estimated fair value. other dispositions of long-lived assets, the applicable amounts of accounts and the net amount, less proceeds from renewals or improvements that increase the estimated useful repairs and maintenance are expensed when incurred.
Capitalized software [Policy Text Block]	The Company capitalizes certain costs in connection with developing use, depending on the associated project. 3 5 intended use.
Goodwill and other intangible assets [Policy Text Block]	The Company records goodwill, definite-lived intangible intangible assets at fair value at the date of acquisition. impairment at least annually. Definite-lived intangible assets are amortized on a straight from 4 20 discussion of long-lived assets, above.
Revenue recognition [Policy Text Block]	The Company applies the Financial Accounting Standards recognition which requires the Company to recognize expects to be entitled in exchange for goods or services model in the FASB’s obligations in the contract; (iii) determine the transaction contract; and (v) recognize revenue when, or as,
Accounts receivable and allowance for doubtful accounts [Policy Text Block]	Trade accounts receivable subject the Company Trade accounts receivable are recorded accounts is the Company’s The Company recognizes an allowance for credit losses, which expect to collect over its contractual life, considering conditions. circumstances for each outstanding receivable and customer, the Company estimates for certain past due aging categories, historical amounts determined to be uncollectible. customers.
Research and Development Expense, Policy [Policy Text Block]	and administrative expenses (“SG&A”).
Environmental liabilities and expenditures [Policy Text Block]	Accruals for environmental matters are recorded has been incurred and the amount of the liability can in that range is considered more probable than another, generally accepted accounting principles in the United capitalized if the costs extend the life, increase the constructed, and/or mitigate or prevent contamination
Asset Retirement Obligations, Policy [Policy Text Block]	The Company follows the FASB’s addresses the accounting and reporting for obligations retirement costs. relates to legal obligations to perform an asset retirement a future event that may or may not be within the control liability when there is enough information regarding the analysis.
Pension and other postretirement benefits [Policy Text Block]	ther postretirement benefits: The Company maintains various noncontributory retirement portion of its employees in the U.S. and certain other Sweden, Germany and France. accounting for defined benefit pension plans. insured or integrated with the local governments’ plans and that employers recognize on a prospective basis the their consolidated balance sheet and, also, recognize credits that arise during the period but are not recognized requires that an employer recognize a settlement charge including plan termination or the settlement of certain expense of a portion of the unrecognized loss within AOCI on obligation that was settled. December 31. The Company’s global with meeting the future benefit obligations of the pension including the Employee Retirement Income Security targets and benchmarks for significant asset classes Company’s investment perspective of capital markets, expected risk and return plan liabilities. intermediate portfolio duration is matched to reduce portfolio is managed to maximize the long-term real assessment of risk and targeting the optimal expected guidelines prohibit the use of securities such as letter stock and short sales, margin transactions, private placements for the purpose of portfolio leveraging. The target asset allocation is reviewed periodically inflation rates, fixed income yields, returns, volatilities and obligations is periodically studied to assist in establishing such an overall expectation that plan assets will meet or exceed pension committee, as authorized by the Company’s allocation ranges approved by senior management of the
Comprehensive income (loss) [Policy Text Block]	The Company presents other comprehensive income (loss) in its Statements Income. disclosure of significant amounts reclassified from each items affected by such reclassifications.
Income taxes and uncertain tax positions [Policy Text Block]	The provision for income taxes is determined using the asset and of accounting for income taxes. reported amounts of assets and liabilities are recovered payable for the current year and the change in deferred taxes financial and tax bases of the Company’s enacted. realized. measurement attributes for financial statement recognition return. sustained upon audit based upon the technical merits of not sustained upon audit, a company recognizes the largest 50 % likely of being realized upon ultimate settlement in the financial statements. audit, a company does not recognize any portion of the adjusts for derecognition, classification, and penalties and thereto. statutory rate of interest to the difference taken or expected to be taken in a tax return. income tax expense. related to net operating losses or other tax credit carryforwards presumed amount at the balance sheet date.
Derivatives [Policy Text Block]	The Company is exposed to the impact of changes in interest rates, commodity prices and credit risk. exposure to variability in interest payments associated with its variable consistent with the related underlying exposures and do not 2020 and 2019, are entered into with a limited number of counterparties, payment in a single currency in the event of a default on a net basis within the Consolidated Balance Sheets. in AOCI and will be recognized in the Consolidated Statements becomes probable that the forecasted transaction will not occur.
Fair value measurements [Policy Text Block]	The Company utilizes the FASB’s common definition for fair value to be applied to guidance value and expands disclosure about such fair value measurements. prioritizes the inputs to valuation techniques used to measure fair • Level 1: Observable inputs such as quoted prices (unadjusted) • Level 2: Inputs other than quoted prices that are observable include quoted prices for similar assets or liabilities in active liabilities in markets that are not active. • Level 3: Unobservable inputs that reflect the reporting entity's own assumptions.
Share-based compensation [Policy Text Block]	The Company applies the FASB’s recognition of the fair value of share-based compensation program (“LTIP”) value on the date of the grant. three years determined by the Company, seven years issued under the LTIP one three-year Company’s Annual Incentive two five - year period. In addition, while the FASB’s they occur for service condition aspects of certain share-based and instead has elected to continue utilizing a forfeiture forfeiture rate of 13 % on certain of its nonvested stock awards. rate is lower than estimated and will record a recovery The Company also issues performance-dependent dependent stock awards is based on their grant-date market performance goals and is calculated by utilizing a Monte Carlo line basis over the vesting period, generally three years .
Earnings Per Share [Policy Text Block]	The Company follows the FASB’s stock awards with rights to non-forfeitable dividends. dividends to be included as part of the basic weighted
Segments [Policy Text Block]	The Company’s reportable which the Company’s resources performance
Business Combinations [Policy Text Block]	The Company accounts for business combinations under method requires the recording of acquired assets, including respective acquisition date estimated fair values. assets acquired is recorded as goodwill. requires significant estimates and assumptions. which may be up to one year from the acquisition date, acquired and liabilities assumed.
Restructuring activities [Policy Text Block]	Restructuring programs consist of employee severance, facilities and other related items. cost obligations. liability is incurred, is estimable, and payment is probable.
Reclassification [Policy Text Block]	Certain information has been reclassified to conform
Accounting estimates [Policy Text Block]	The preparation of financial statements in conformity requires management to make estimates and assumptions that contingencies at the date of the financial statements and Actual results could differ from such estimates.
Credit Loss Financial Instrument [Policy Text Block]	The Company recognizes an allowance for credit losses, which expect to collect over its contractual life, considering conditions. share similar credit risk characteristics. specific collectability facts and circumstances for each the associated collection risk the Company estimates for certain accounts receivable based on historical amounts determined to there is no reasonable expectation of recovery.

Business Combination (Tables)

Business Combination (Tables)	12 Months Ended
Business Combination (Tables)	Dec. 31, 2020
Houghton [Member]
Business Acquisition [Line Items]
Schedule of fair value of consideration transferred in the Combination [Table Text Block]	Cash transferred to Houghton shareholders (a) $ 170,829 Cash paid to extinguish Houghton debt obligations 702,556 Fair value of common stock issued as consideration (b) 789,080 Total fair value $ 1,662,465 (a) milestones. (b) 4.3 24.5 % of the common stock of the Company immediately after the closing, and the closing price per 182.27 August 1, 2019.
Schedule of unaudited Pro Forma [Text Block]	For the years ending Unaudited Pro Forma (as if the Combination occurred on 2019 2018 Net sales $ 1,562,427 $ 1,654,588 Net income attributable to Quaker Chemical Corporation 94,537 35,337
Schedule of estimated fair values of net assets acquired [Table Text Block]	Measurement August 1, Period August 1, 2019 2019 (1) Adjustments (as adjusted) Cash and cash equivalents $ 75,821 $ — $ 75,821 Accounts receivable 178,922 — 178,922 Inventories 95,193 — 95,193 Prepaid expenses and other assets 10,652 666 11,318 Property, plant and 115,529 (66) 115,463 Right of use lease assets 10,673 — 10,673 Investments in associated companies 66,447 — 66,447 Other non-current assets 4,710 1,553 6,263 Intangible assets 1,028,400 — 1,028,400 Goodwill 494,915 4,625 499,540 Total assets purchased 2,081,262 6,778 2,088,040 Short-term borrowings, not refinanced at closing 9,297 — 9,297 Accounts 150,078 1,127 151,205 Deferred tax liabilities 205,082 4,098 209,180 Long-term lease liabilities 6,607 — 6,607 Other non-current liabilities 47,733 1,553 49,286 Total liabilities assumed 418,797 6,778 425,575 Total consideration 1,662,465 — 1,662,465 Less: cash acquired 75,821 — 75,821 Less: fair value of common stock issued as consideration 789,080 — 789,080 Net cash paid for Houghton $ 797,564 $ — $ 797,564
Norman Hay [Member]
Business Acquisition [Line Items]
Schedule of estimated fair values of net assets acquired [Table Text Block]	Measurement October 1, Period October 1, 2019 2019 (1) Adjustments (as adjusted) Cash and cash equivalents $ 18,981 $ — $ 18,981 Accounts receivable 15,471 — 15,471 Inventories 8,213 (49) 8,164 Prepaid expenses and other assets 4,203 138 4,341 Property, plant and 14,981 — 14,981 Right of use lease assets 10,608 — 10,608 Intangible assets 51,088 — 51,088 Goodwill 29,384 (82) 29,302 Total assets purchased 152,929 7 152,936 Long-term debt included current portions 485 — 485 Accounts payable, accrued expenses and other accrued 13,488 (732) 12,756 Deferred tax liabilities 12,746 905 13,651 Long-term lease liabilities 8,594 — 8,594 Total liabilities assumed 35,313 173 35,486 Total consideration 117,616 (166) 117,450 Less: estimated purchase price settlement (2) 3,287 (3,287) — Less: cash acquired 18,981 — 18,981 Net cash paid for Norman Hay $ 95,348 $ 3,121 $ 98,469
Coral Chemical Company [Member]
Business Acquisition [Line Items]
Schedule of estimated fair values of net assets acquired [Table Text Block]	December 22, 2020 Cash and cash equivalents $ 958 Accounts receivable 8,473 Inventories 4,527 Prepaid expenses and other assets 181 Property, plant and 10,467 Intangible assets 30,300 Goodwill 2,814 Total assets purchased 57,720 Long-term debt included current portions 183 Accounts payable, accrued expenses and other accrued liabilities 3,482 Total liabilities assumed 3,665 Total consideration 54,055 Less: cash acquired 958 Net cash paid for Coral $ 53,097

Business Segments (Tables)

Business Segments (Tables)	12 Months Ended
Business Segments (Tables)	Dec. 31, 2020
Segment Disclosures [Abstract]
Schedule of information about the performance of the Company's reportable segments, sales and total assets [Table Text Block]	2020 2019 2018 Net sales Americas $ 450,161 $ 392,121 $ 297,601 EMEA 383,187 285,570 216,984 Asia/Pacific 315,299 247,839 192,502 Global Specialty Businesses 269,030 207,973 160,433 Total $ 1,417,677 $ 1,133,503 $ 867,520 2020 2019 2018 Segment assets Americas $ 969,551 $ 926,122 $ 180,037 EMEA 697,821 688,663 149,984 Asia/Pacific 713,004 685,476 205,424 Global Specialty Businesses 511,458 550,055 174,220 Total segment assets $ 2,891,834 $ 2,850,316 $ 709,665
Schedule of information about the performance of the Company's reportable segments, operating earnings [Table Text Block]	2020 2019 2018 Segment operating earnings Americas $ 96,379 $ 78,297 $ 62,686 EMEA 69,163 47,014 36,119 Asia/Pacific 88,356 67,512 53,739 Global Specialty Businesses 79,690 58,881 42,931 Total 333,588 251,704 195,475 Combination, integration and other acquisition-related (29,790) (35,477) (16,661) Restructuring and related charges (5,541) (26,678) — Fair value step up of inventory sold (226) (11,714) — Indefinite-lived intangible asset impairment (38,000) — — Non-operating and administrative expenses (143,202) (104,572) (83,515) Depreciation of corporate assets and amortization (57,469) (27,129) (7,518) Operating income 59,360 46,134 87,781 Other expense, net (5,618) (254) (642) Interest expense, net (26,603) (16,976) (4,041) Income before taxes and equity in net income associated companies $ 27,139 $ 28,904 $ 83,098
Schedule of reportable segments' long-lived assets, including certain identifiable assets [Table Text Block]	2020 2019 2018 Segment long-lived assets Americas $ 122,302 $ 139,170 $ 60,745 EMEA 69,344 56,108 23,383 Asia/Pacific 119,233 126,166 26,217 Global Specialty Businesses 59,091 69,184 26,949 Total segment long-lived $ 369,970 $ 390,628 $ 137,294
Reconciliation of capital expenditures and depreciation for identifiable assets [Table Text Block]	2020 2019 2018 Capital expenditures Americas $ 6,451 $ 6,404 $ 3,401 EMEA 3,844 3,263 2,081 Asia/Pacific 5,688 3,857 6,059 Global Specialty Businesses 1,918 2,021 1,345 Total segment capital $ 17,901 $ 15,545 $ 12,886 2020 2019 2018 Depreciation Americas $ 12,322 $ 7,500 $ 4,225 EMEA 6,813 4,560 3,434 Asia/Pacific 4,672 3,458 2,552 Global Specialty Businesses 3,544 2,248 1,985 Total segment depreciation $ 27,351 $ 17,766 $ 12,196

Net Sales and Revenue Recogni_2

Net Sales and Revenue Recognition (Tables)	12 Months Ended
Net Sales and Revenue Recognition (Tables)	Dec. 31, 2020
Disaggregation Of Revenue [Abstract]
Disaggregation Of Revenue [Table Text Block]	2020 2019 2018 Metal removal fluids 23.9 % 19.9 % 15.4 % Rolling lubricants 21.8 % 21.9 % 25.5 % Hydraulic fluids 13.3 % 13.0 % 13.0 % Net sales for the year ending December 31, 2020 Consolidated Americas EMEA Asia/Pacific Total Customer Industries Metals $ 163,135 $ 107,880 $ 168,096 $ 439,111 Metalworking and other 287,026 275,307 147,203 709,536 450,161 383,187 315,299 1,148,647 Global Specialty Businesses 154,796 68,164 46,070 269,030 $ 604,957 $ 451,351 $ 361,369 $ 1,417,677 Timing of Revenue Recognized Product sales at a point in time $ 580,663 $ 434,549 $ 352,917 $ 1,368,129 Services transferred over time 24,294 16,802 8,452 49,548 $ 604,957 $ 451,351 $ 361,369 $ 1,417,677 Net sales for the year ending December 31, 2019 Consolidated Americas EMEA Asia/Pacific Total Customer Industries Metals $ 171,784 $ 100,605 $ 141,870 $ 414,259 Metalworking and other 220,337 184,965 105,969 511,271 392,121 285,570 247,839 925,530 Global Specialty Businesses 149,428 30,115 28,430 207,973 $ 541,549 $ 315,685 $ 276,269 $ 1,133,503 Timing of Revenue Recognized Product sales at a point in time $ 525,802 $ 310,274 $ 269,228 $ 1,105,304 Services transferred over time 15,747 5,411 7,041 28,199 $ 541,549 $ 315,685 $ 276,269 $ 1,133,503 Net sales for the year ending December 31, 2018 Consolidated Americas EMEA Asia/Pacific Total Customer Industries Metals $ 164,263 $ 101,028 $ 120,627 $ 385,918 Metalworking and other 133,338 115,956 71,875 321,169 297,601 216,984 192,502 707,087 Global Specialty Businesses 122,165 16,613 21,655 160,433 $ 419,766 $ 233,597 $ 214,157 $ 867,520 Timing of Revenue Recognized Product sales at a point in time $ 408,402 $ 233,372 $ 206,112 $ 847,886 Services transferred over time 11,364 225 8,045 19,634 $ 419,766 $ 233,597 $ 214,157 $ 867,520

Leases (Tables)

Leases (Tables)	12 Months Ended
Leases (Tables)	Dec. 31, 2020
Leases [Abstract]
Schedule of Maturities of operating lease liabilities [Table Text Block]	December 31, December 31, 2020 2019 Right of use lease assets $ 38,507 $ 42,905 Other accrued liabilities 10,901 11,177 Long-term lease liabilities 27,070 31,273 Total operating $ 37,971 $ 42,450 Weighted average 6.0 6.2 Weighted average 4.20% 4.21%
Schedule of Company's future minimum rental commitments under operating leases [Table Text Block]	December 31, 2020 For the year ended December 31, 2021 $ 12,342 For the year ended December 31, 2022 8,395 For the year ended December 31, 2023 6,220 For the year ended December 31, 2024 4,610 For the year ended December 31, 2025 3,836 For the year ended December 31, 2026 and beyond 8,141 Total lease payments 43,544 Less: imputed interest (5,573) Present value of lease liabilities $ 37,971

Restructuring Activities (Table

Restructuring Activities (Tables)	12 Months Ended
Restructuring Activities (Tables)	Dec. 31, 2020
Restructuring And Related Activities [Abstract]
Restructuring and Related Costs [Table Text Block]	QH Program Accrued restructuring as of December 31, 2018 $ - Restructuring and related charges 26,678 Cash payments (8,899) Currency translation adjustments 264 Accrued restructuring as of December 31, 2019 18,043 Restructuring and related charges 5,541 Cash payments (15,745) Currency translation adjustments 409 Accrued restructuring as of December 31, 2020 $ 8,248

Share Based Compensation (Table

Share Based Compensation (Tables)	12 Months Ended
Share Based Compensation (Tables)	Dec. 31, 2020
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of share-based compensation expense in its Consolidated Statements of Income [Table Text Block]	2020 2019 2018 Stock options $ 1,491 $ 1,448 $ 1,053 Non-vested stock awards and restricted stock units 5,012 3,206 2,459 Non-elective and elective 401(k) matching contribution in 3,112 — — Employee stock purchase plan — 84 89 Director stock ownership plan 541 123 123 Performance stock units 840 — — Annual incentive plan (1) — — — Total share-based $ 10,996 $ 4,861 $ 3,724 (1) Refer to the section entitled Annual Incentive Plan
Schedule of Stock option activity under all plans [Table Text Block]	Weighted Weighted Average Average Exercise Remaining Aggregate Number of Price Contractual Intrinsic Options (per option) Term Value Options outstanding as of January 1, 2020 144,412 $ 137.15 Options granted 49,115 136.64 Options exercised (83,191) 128.42 Options outstanding as of December 31, 2020 110,336 $ 143.51 5.2 $ 12,015 Options expected to vest after December 31, 2020 92,890 $ 144.86 5.6 $ 9,990 Options exercisable as of December 31, 2020 17,446 $ 136.32 3.4 $ 2,025
Schedule of summary of the Company's outstanding stock options [Table Text Block]	Weighted Average Weighted Weighted Number Remaining Average Number Average Range of of Options Contractual Exercise Price of Options Exercise Price Exercise Prices Outstanding Term (per option) Exercisable (per option) $ 70.01 - $ 80.00 2,133 1.0 $ 72.12 2,133 $ 72.12 $ 80.01 - $ 90.00 1,309 1.0 87.30 1,309 87.30 $ 90.01 - $ 130.00 — — — — — $ 130.01 - $ 140.00 51,732 6.0 136.54 2,617 134.60 $ 140.01 - $ 150.00 — — — — — $ 150.01 - $ 160.00 55,162 4.8 154.14 11,387 154.37 110,336 5.2 143.51 17,446 136.32
Schedule of Black-Scholes option pricing model and the assumptions [Table Text Block]	2020 2019 2018 2017 Number of stock options granted 49,115 51,610 35,842 42,477 Dividend yield 0.99 % 1.12 % 1.37 % 1.49 % Expected volatility 31.57 % 26.29 % 24.73 % 25.52 % Risk-free interest rate 0.36 % 1.52 % 2.54 % 1.67 % Expected term (years) 4.0 4.0 4.0 4.0
Schedule of The compensation expense recorded on each award during the year [Table Text Block]	2020 2019 2018 2020 Stock option awards $ 385 $ — $ — 2019 Stock option awards 698 665 — 2018 Stock option awards 357 364 310 2017 Stock option awards 51 369 367
Schedule of activity of nonvested restricted stock awards granted under the Company's LTIP plan [Table Text Block]	Number of Weighted Average Shares Date Fair Value Nonvested awards, December 31, 2019 64,500 $ 152.67 Granted 28,244 145.63 Vested (19,195) 148.15 Forfeited (1,781) 150.27 Nonvested awards, December 31, 2020 71,768 $ 151.17
Schedule of activity of nonvested restricted stock units granted under the Company's LTIP plan [Table Text Block]	Number of Weighted Average Units Date Fair Value Nonvested awards, December 31, 2019 8,655 $ 152.09 Granted 6,030 141.65 Vested (1,791) 141.92 Forfeited (2,049) 153.50 Nonvested awards, December 31, 2020 10,845 $ 147.70

Other Income (Expense) (Tables)

Other Income (Expense) (Tables)	12 Months Ended
Other Income (Expense) (Tables)	Dec. 31, 2020
Other Income and Expenses [Abstract]
Schedule of other expense, net [Table Text Block]	2020 2019 2018 Income from third party license fees $ 999 $ 1,035 $ 862 Foreign exchange (losses) gains, net (6,082) 223 (807) (Loss) gain on fixed asset disposals, net (871) 58 657 Non-income 3,345 1,118 668 Pension and postretirement benefit costs, non-service components (21,592) (2,805) (2,285) Gain on changes in insurance settlement restrictions of an 18,144 60 90 Other 439 57 173 Total other $ (5,618) $ (254) $ (642)

Taxes on Income and Uncertain P

Taxes on Income and Uncertain Positions (Tables)	12 Months Ended
Taxes on Income and Uncertain Positions (Tables)	Dec. 31, 2020
Taxes on Income and Uncertain Tax Positions [Abstract]
Schecule of taxes on income before equity in net income of associated companies [Table Text Block]	2020 2019 2018 Current: Federal $ (1,359) $ (239) $ 6,583 State 1,171 352 (1,844) Foreign 33,173 26,213 12,114 32,985 26,326 16,853 Deferred: Federal (28,437) (9,267) 7,859 State (3,087) (396) (173) Foreign (6,757) (14,579) 511 Total $ (5,296) $ 2,084 $ 25,050
Schedule of components of earnings before income taxes [Table Text Block]	2020 2019 2018 U.S. $ (66,585) $ (46,697) $ 27,387 Foreign 93,724 75,601 55,711 Total $ 27,139 $ 28,904 $ 83,098
Schedule of total deferred tax assets and liabilities [Table Text Block]	2020 2019 Retirement benefits $ 15,237 $ 15,142 Allowance for doubtful accounts 2,316 2,253 Insurance and litigation reserves 842 1,002 Performance incentives 5,914 7,213 Equity-based compensation 1,282 1,050 Prepaid expense 756 2,976 Insurance settlement — 3,895 Operating loss carryforward 16,693 16,044 Foreign tax credit and other credits 24,873 34,384 Interest 16,812 11,479 Restructuring reserves 1,121 2,167 Right of use lease assets 9,346 10,015 Royalties and license fees — 2,156 Inventory reserves 2,225 2,163 Research and development 7,974 2,580 Other 3,005 1,317 108,396 115,836 Valuation (21,511) (13,834) Total deferred $ 86,885 $ 102,002 Depreciation 15,473 17,754 Foreign pension and other 1,807 1,269 Amortization and other 222,794 254,359 Lease liabilities 9,151 9,965 Outside basis in equity investment 7,938 6,776 Unremitted Earnings 5,919 8,228 Total deferred $ 263,082 $ 298,351
Schedule of changes in the Company's deferred tax asset valuation allowance [Table Text Block]	Effect of Balance at Purchase Additional Allowance Exchange Balance Beginning Accounting Valuation Utilization Rate at End of Period Adjustments Allowance and Other Changes of Period Valuation Year $ 13,834 $ 7,148 $ 2,738 $ (2,153) $ (56) $ 21,511 Year $ 7,520 $ 13,752 $ 832 $ (8,227) $ (43) $ 13,834 Year $ 7,401 $ — $ 650 $ (471) $ (60) $ 7,520
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]	2020 2019 2018 Income tax provision at the Federal statutory tax rate $ 5,699 $ 6,070 $ 17,458 Unremitted earnings (2,308) (4,383) 7,857 Tax law changes (1,059) (416) (3,118) Sub part F / Global intangible low taxed income 5,140 574 2,095 Pension settlement (2,247) — — Foreign derived intangible income (7,339) (1,699) (1,034) Non-deductible acquisition expenses 131 1,743 1,019 Withholding taxes 7,809 8,621 1,161 Foreign tax credits (4,699) (3,787) (1,911) Share-based compensation 335 (540) 259 Foreign tax rate differential 596 920 1,081 Research and development credit (475) (306) (230) Uncertain tax positions 1,990 899 (79) State income tax provisions, net (2,245) (117) 196 Non-deductible meals and entertainment 290 318 415 Intercompany transfer of intangible assets (4,384) (5,318) — Miscellaneous items, net (2,530) (495) (119) Taxes on income $ (5,296) $ 2,084 $ 25,050
Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]	2020 2019 2018 Unrecognized tax benefits as of January 1 $ 19,097 $ 7,050 $ 6,761 Increase (decrease) in unrecognized tax benefits taken 2,025 (28) (183) Increase in unrecognized tax benefits taken in current period 3,095 1,935 2,023 Decrease in unrecognized tax benefits due to lapse of statute of (3,659) (1,029) (1,292) Increase in unrecognized tax benefits due to acquisition 597 11,301 — Increase (decrease) due to foreign exchange rates 997 (132) (259) Unrecognized tax benefits as of December $ 22,152 $ 19,097 $ 7,050
Schedule Of Deferred Tax Assets And Liabilities Balance Sheet Classification [Table Text Block]	2020 2019 Non-current deferred tax assets $ 16,566 $ 14,745 Non-current deferred tax liabilities 192,763 211,094 Net deferred tax liability $ (176,197) $ (196,349)

Earnings Per Share (Tables)

Earnings Per Share (Tables)	12 Months Ended
Earnings Per Share (Tables)	Dec. 31, 2020
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	2020 2019 2018 Basic earnings per common share Net income attributable to Quaker Chemical Corporation $ 39,658 $ 31,622 $ 59,473 Less: income allocated to participating securities (148) (90) (253) Net income available to common shareholders $ 39,510 $ 31,532 $ 59,220 Basic weighted average common shares outstanding 17,719,792 15,126,928 13,268,047 Basic earnings per common share $ 2.23 $ 2.08 $ 4.46 Diluted earnings per common share Net income attributable to Quaker Chemical Corporation $ 39,658 $ 31,622 $ 59,473 Less: income allocated to participating securities (148) (90) (252) Net income available to common shareholders $ 39,510 $ 31,532 $ 59,221 Basic weighted average common shares outstanding 17,719,792 15,126,928 13,268,047 Effect of dilutive securities 31,087 36,243 36,685 Diluted weighted 17,750,879 15,163,171 13,304,732 Diluted earnings per common share $ 2.22 $ 2.08 $ 4.45

Restricted Cash (Tables)

Restricted Cash (Tables)	12 Months Ended
Restricted Cash (Tables)	Dec. 31, 2020
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents [Abstract]
Schedule Of Cash And Cash Equivalents [Table Text Block]	2020 2019 2018 2017 Cash and cash equivalents $ 181,833 $ 123,524 $ 104,147 $ 89,879 Restricted cash included in other current assets 62 353 — — Restricted cash included in other assets — 19,678 20,278 21,171 Cash, cash equivalents and restricted cash $ 181,895 $ 143,555 $ 124,425 $ 111,050

AR and Allowance for Doubtful A

AR and Allowance for Doubtful Accounts (Tables)	12 Months Ended
AR and Allowance for Doubtful Accounts (Tables)	Dec. 31, 2020
Accounts Receivable and Allowance for Doubtful Accounts [Abstract]
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]	Exchange Rate Balance at Changes Write-Offs Changes Balance Beginning to Costs and Charged to and Other at End of Period Expenses Allowance Adjustments of Period Allowance for Doubtful Accounts Year $ 11,716 $ 3,582 $ (2,187) $ 34 $ 13,145 Year $ 5,187 $ 1,925 $ (322) $ 4,926 $ 11,716 Year $ 5,457 $ 493 $ (295) $ (468) $ 5,187

Inventories (Tables)

Inventories (Tables)	12 Months Ended
Inventories (Tables)	Dec. 31, 2020
Inventories [Abstract]
Schedule of Inventory, Current [Table Text Block]	2020 2019 Raw materials and supplies $ 86,148 $ 82,058 Work in 101,616 92,892 Total inventories, $ 187,764 $ 174,950

Property, Plant and Equipment (

Property, Plant and Equipment (Tables)	12 Months Ended
Property, Plant and Equipment (Tables)	Dec. 31, 2020
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment [Table Text Block]	2020 2019 Land $ 33,009 $ 34,686 Building and improvements 135,595 130,462 Machinery and equipment 246,242 225,636 Construction in progress 8,407 8,050 Property, plant and 423,253 398,834 Less: accumulated depreciation (219,370) (185,365) Total property, $ 203,883 $ 213,469

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	12 Months Ended
Goodwill and Intangible Assets (Tables)	Dec. 31, 2020
Goodwill And Intangible Assets Disclosure [Abstract]
Schedule of Goodwill [Table Text Block]	Global Specialty Americas EMEA Asia/Pacific Businesses Total Balance as of December 31, 2018 $ 28,464 $ 17,423 $ 13,149 $ 24,297 $ 83,333 Goodwill additions 188,494 114,167 130,091 91,545 524,297 Currency translation adjustments (573) 1,428 (1,513) 233 (425) Balance as of December 31, 2019 216,385 133,018 141,727 116,075 607,205 Goodwill additions 1,485 531 — 1,329 3,345 Currency translation and other (4,628) 6,613 16,363 2,314 20,662 Balance as of December 31, 2020 $ 213,242 $ 140,162 $ 158,090 $ 119,718 $ 631,212
Schedule of Finite-Lived Intangible Assets [Table Text Block]	Gross Carrying Accumulated Amount Amortization 2020 2019 2020 2019 Customer lists and rights to sell $ 839,551 $ 792,362 $ 99,806 $ 49,932 Trademarks, formulations and product 166,448 157,049 30,483 21,299 Other 6,372 6,261 5,824 5,776 Total definite $ 1,012,371 $ 955,672 $ 136,113 $ 77,007
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]	For the year ended December 31, 2021 $ 58,752 For the year ended December 31, 2022 58,590 For the year ended December 31, 2023 58,361 For the year ended December 31, 2024 57,935 For the year ended December 31, 2025 57,263

Investment in Associated Compan

Investment in Associated Companies (Tables)	12 Months Ended
Investment in Associated Companies (Tables)	Dec. 31, 2020
Investments in Associated Companies [Abstract]
Schedule of Equity Method Investments [Table Text Block]	Year 2020 2019 2018 Houghton Korea $ 5,241 $ 2,337 $ — Nippon Japan 853 850 713 Kelko Panama 107 55 222 Kelko Venezuela — — (138) Primex 1,151 1,822 966 Total equity $ 7,352 $ 5,064 $ 1,763

Other Assets (Tables)

Other Assets (Tables)	12 Months Ended
Other Assets (Tables)	Dec. 31, 2020
Other Assets [Abstract]
Schedule of Other Assets, Noncurrent [Table Text Block]	2020 2019 Uncertain tax positions $ 7,209 $ 4,993 Pension assets 6,748 — Debt issuance costs 5,919 7,571 Indemnification assets 7,615 4,006 Supplemental retirement income program 1,961 1,782 Restricted insurance settlement — 19,678 Other 2,344 2,403 Total other $ 31,796 $ 40,433

Other Current Liabilities (Tabl

Other Current Liabilities (Tables)	12 Months Ended
Other Current Liabilities (Tables)	Dec. 31, 2020
Other Accrued Liabilities [Abstract]
Schedule of Accrued Liabilities [Table Text Block]	2020 2019 Non-income taxes $ 26,080 $ 21,176 Current income taxes payable 13,124 7,503 Professional fees, legal, and acquisition-related accruals 11,437 17,103 Short-term lease liabilities 10,901 11,177 Selling expenses and freight accruals 10,475 11,350 Customer advances and sales return reserves 6,380 5,554 Other 13,710 9,742 Total other $ 92,107 $ 83,605

Debt (Tables)

Debt (Tables)	12 Months Ended
Debt (Tables)	Dec. 31, 2020
Debt [Abstract]
Schedule of Debt [Table Text Block]	As of December 31, 2020 As of December 31, 2019 Interest Outstanding Interest Outstanding Rate Balance Rate Balance Credit Facilities: Revolver 1.65% $ 160,000 3.20% $ 171,169 U.S. Term Loan 1.65% 570,000 3.20% 600,000 EURO Term Loan 1.50% 157,062 1.50% 151,188 Industrial development bonds 5.26% 10,000 5.26% 10,000 Bank lines of credit and other debt obligations Various 2,072 Various 2,608 Total debt $ 899,134 $ 934,965 Less: debt issuance costs (11,099) (14,196) Less: short-term and current portion of long-term debts (38,967) (38,332) Total long $ 849,068 $ 882,437
Schedule of Maturities of Long-term Debt [Table Text Block]	2021 $ 38,795 2022 57,850 2023 76,943 2024 715,227 2025 231
Interest Income And Interest Expense Disclosure [Table Text Block]	Year 2020 2019 2018 Interest expense $ 23,552 $ 16,788 $ 6,158 Amortization of debt issuance costs 4,749 1,979 70 Total $ 28,301 $ 18,767 $ 6,228

Pension and Other Post Retireme

Pension and Other Post Retirement Benefits (Tables)	12 Months Ended
Pension and Other Post Retirement Benefits (Tables)	Dec. 31, 2020
Pension and Other Postretirement Benefits [Abstract]
Scheudule of funded status of Company'ds plans' reconciled with amounts reported in the Consolidated Balance Sheets [Table Text Block]	Other Post- Pension Benefits Retirement Benefits 2020 2019 2020 2019 Foreign U.S. Total Foreign U.S. Total U.S. U.S. Change in benefit obligation Gross benefit obligation at beginning of year $ 217,893 $ 153,723 $ 371,616 $ 111,316 $ 58,734 $ 170,050 $ 4,266 $ 4,106 Service cost 4,340 491 4,831 3,507 434 3,941 5 6 Interest cost 3,416 2,923 6,339 3,046 3,313 6,359 77 143 Employee contributions 73 — 73 73 — 73 — — Effect of plan amendments — 50 50 30 — 30 — — Curtailment gain (2,324) — (2,324) — — — — — Plan settlements (2,316) (53,494) (55,810) (1,087) — (1,087) — — Benefits paid (5,087) (6,138) (11,225) (3,832) (6,034) (9,866) (250) (384) Plan expenses and premiums paid (135) — (135) (129) — (129) — — Transfer in of business acquisition — — — 85,658 86,414 172,072 — — Actuarial loss (gain) 16,834 12,414 29,248 13,616 10,862 24,478 (864) 395 Translation differences and 14,981 — 14,981 5,695 — 5,695 — — Gross benefit obligation at end of year $ 247,675 $ 109,969 $ 357,644 $ 217,893 $ 153,723 $ 371,616 $ 3,234 $ 4,266 Other Post- Pension Benefits Retirement Benefits 2020 2019 2020 2019 Foreign U.S. Total Foreign U.S. Total U.S. U.S. Change in plan assets Fair value of plan assets at beginning of year $ 195,099 $ 120,550 $ 315,649 $ 94,826 $ 49,415 $ 144,241 $ — $ — Actual return on plan assets 20,367 10,759 31,126 13,458 10,663 24,121 — — Employer contributions 6,912 2,302 9,214 5,223 1,087 6,310 250 384 Employee contributions 73 — 73 73 — 73 — — Plan settlements (2,316) (53,494) (55,810) (1,087) — (1,087) — — Benefits paid (5,087) (6,138) (11,225) (3,832) (6,034) (9,866) (250) (384) Plan expenses and premiums paid (135) (498) (633) (129) (500) (629) — — Transfer in of business acquisition — — — 81,068 65,919 146,987 — — Translation differences 13,876 — 13,876 5,499 — 5,499 — — Fair value of plan assets at end of year $ 228,789 $ 73,481 $ 302,270 $ 195,099 $ 120,550 $ 315,649 $ — $ — Net benefit obligation recognized $ (18,886) $ (36,488) $ (55,374) $ (22,794) $ (33,173) $ (55,967) $ (3,234) $ (4,266) Amounts recognized in the balance sheet consist of: Non-current assets $ 6,748 $ — $ 6,748 $ — $ — $ — $ — $ — Current liabilities (568) (612) (1,180) (359) (2,620) (2,979) (286) (426) Non-current liabilities (25,066) (35,876) (60,942) (22,435) (30,553) (52,988) (2,948) (3,840) Net benefit obligation recognized $ (18,886) $ (36,488) $ (55,374) $ (22,794) $ (33,173) $ (55,967) $ (3,234) $ (4,266) Amounts not yet reflected in net periodic benefit costs and included in accumulated other comprehensive loss: Prior service credit (26) 50 24 1,271 — 1,271 — — Accumulated loss (21,976) (5,532) (27,508) (22,816) (46,560) (69,376) 124 (734) AOCI (22,002) (5,482) (27,484) (21,545) (46,560) (68,105) 124 (734) Cumulative employer contributions (below) or in excess of benefit cost 3,116 (31,006) (27,890) (1,249) 13,387 12,138 (3,358) (3,532) Net benefit obligation recognized $ (18,886) $ (36,488) $ (55,374) $ (22,794) $ (33,173) $ (55,967) $ (3,234) $ (4,266)
Schedule of Information for pension plans with an accumulated benefit obligation in excess of plan assets [Table Text Block]	2020 2019 Foreign U.S. Total Foreign U.S. Total Projected benefit obligation $ 32,373 $ 109,969 $ 142,342 $ 217,893 $ 153,723 $ 371,616 Accumulated benefit obligation 30,892 109,540 140,432 213,060 152,930 365,990 Fair value of plan assets 18,074 73,481 91,555 195,099 120,550 315,649
Schedule of Benefit Obligations in Excess of Fair Value of Plan Assets [Table Text Block]	2020 2019 Foreign U.S. Total Foreign U.S. Total Projected benefit obligation $ 32,373 $ 109,969 $ 142,342 $ 217,893 $ 153,723 $ 371,616 Fair value of plan assets 18,074 73,481 91,555 195,099 120,550 315,649
Defined Benefit Plan Disclosure [Line Items]
Schedule of Weighted-average assumptions used to determine benefit obligations [Table Text Block]	Other Postretirement Pension Benefits Benefits 2020 2019 2020 2019 U.S. Plans: Discount rate 2.19 % 3.06 % 2.05 % 2.98 % Rate of compensation increase 6.00 % 6.00 % N/A N/A Foreign Discount rate 1.79 % 1.83 % N/A N/A Rate of compensation increase 2.74 % 2.58 % N/A N/A Other Postretirement Pension Benefits Benefits 2020 2019 2020 2019 U.S. Plans: Discount rate 3.11 % 4.08 % 2.99 % 4.03 % Expected long-term return on plan assets 6.50 % 5.75 % N/A N/A Rate of compensation increase 6.00 % 5.50 % N/A N/A Foreign Plans: Discount rate 2.30 % 2.30 % N/A N/A Expected long-term return on plan assets 2.20 % 3.13 % N/A N/A Rate of compensation increase 2.79 % 2.87 % N/A N/A
Schedule of Assumed health care cost trend rates [Table Text Block]	2020 2019 Health care cost trend rate for next year 5.70 % 5.90 % Rate to which the cost trend rate is assumed to decline (the ultimate trend rate) 4.50 % 4.50 % Year 2037 2037
Schedule of compan's pension plan target asset allocation and pension plan investments measured at fair value on a recurring basis [Table Text Block]	Asset Category Target 2020 2019 U.S. Plans Equity securities 10 % 58 % 32 % Debt securities 90 % 36 % 64 % Other 0 % 6 % 4 % Total 100 % 100 % 100 % Foreign Plans Equity securities 37 % 33 % 34 % Debt securities 53 % 45 % 45 % Other 10 % 22 % 21 % Total 100 % 100 % 100 % Fair Value Total Using Fair Value U.S. Pension Assets Fair Value Level 1 Level 2 Level 3 Pooled separate accounts $ 69,385 $ — $ 69,385 $ — Real estate 4,096 — — 4,096 Subtotal U.S. pension plan assets in fair value hierarch $ 73,481 $ — $ 69,385 $ 4,096 Total U.S. pension $ 73,481 Foreign Pension Assets Cash and cash equivalents $ 634 $ 634 $ — $ — Insurance contract 112,920 — — 112,920 Diversified equity securities - registered investment companies 8,851 — 8,851 — Fixed income – foreign registered investment companies 3,711 — 3,711 — Fixed income government securities 37,579 — 37,579 — Real estate 5,679 — — 5,679 Other - alternative investments 10,638 — — 10,638 Sub-total of foreign pension assets in fair value hierarchy $ 180,012 $ 634 $ 50,141 $ 129,237 Commingled funds measured at NAV 2,368 Diversified investment fund - companies measured at NAV 46,409 Total foreign pension $ 228,789 Total pension $ 253,493 $ 634 $ 119,526 $ 133,333 Total pension 48,777 Total pension $ 302,270 Fair Value Total Using Fair Value U.S. Pension Assets Fair Value Level 1 Level 2 Level 3 Cash and cash equivalents $ 450 $ 450 $ — $ — Pooled separate accounts 64,636 — 64,636 — Real estate 4,060 — — 4,060 Subtotal U.S. pension plan assets in fair value hierarch $ 69,146 $ 450 $ 64,636 $ 4,060 Commingled funds measured at NAV 51,404 Total U.S. pension $ 120,550 Foreign Pension Assets Cash and cash equivalents $ 1,502 $ 1,502 $ — $ — Insurance contract 92,657 — — 92,657 Diversified equity securities - registered investment companies 8,604 — 8,604 — Fixed income – foreign registered investment companies 3,021 — 3,021 — Fixed income government securities 32,512 — 32,512 — Real estate 5,521 — — 5,521 Other - alternative investments 9,436 — — 9,436 Sub-total of foreign pension assets in fair value hierarchy $ 153,253 $ 1,502 $ 44,137 $ 107,614 Commingled funds measured at NAV 2,037 Diversified investment fund - companies measured at NAV 39,809 Total foreign pension $ 195,099 Total pension $ 222,399 $ 1,952 $ 108,773 $ 111,674 Total pension 93,250 Total pension $ 315,649
Schedule of changes in the fair value of the plans' Level 3 investments [Table Text Block]	Insurance Alternative Contract Real Estate Investments Total Balance as of December 31, 2018 $ 79,873 2,382 — $ 82,255 Purchases 3,762 — 1,029 4,791 Assets acquired in business combinations 129 7,058 8,914 16,101 Sales — (238) (278) (516) Settlements (1,730) — — (1,730) Unrealized (losses) gains 12,199 403 (960) 11,642 Currency translation adjustment (1,576) (24) 731 (869) Balance as of December 31, 2019 92,657 9,581 9,436 111,674 Purchases 3,902 18 989 4,909 Settlements (2,027) — — (2,027) Unrealized gains (losses) 8,917 (16) (171) 8,730 Currency translation adjustment 9,471 192 384 10,047 Balance as of December 31, 2020 $ 112,920 $ 9,775 $ 10,638 $ 133,333
Schedule of Expected Benefit Payments [Table Text Block]	Other Post- Pension Benefits Retirement Foreign U.S. Total Benefits 2021 $ 6,658 $ 5,923 $ 12,581 $ 286 2022 6,939 5,298 12,237 278 2023 7,024 6,072 13,096 265 2024 6,745 6,234 12,979 245 2025 7,394 6,228 13,622 226 2025 to 2029 42,522 30,443 72,965 923
Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Schedule of components of net periodic benefit costs - pension plans [Table Text Block]	2020 2019 Foreign U.S. Total Foreign U.S. Total Service cost $ 4,340 $ 491 $ 4,831 $ 3,507 $ 434 $ 3,941 Interest cost 3,416 2,923 6,339 3,046 3,313 6,359 Expected return on plan assets (4,262) (4,810) (9,072) (3,668) (3,227) (6,895) Settlement loss (88) 22,667 22,579 258 — 258 Curtailment charge (1,155) — (1,155) — — — Actuarial loss amortization 886 2,110 2,996 757 2,348 3,105 Prior service (credit) cost amortization (167) — (167) (165) — (165) Net periodic benefit cost $ 2,970 $ 23,381 $ 26,351 $ 3,735 $ 2,868 $ 6,603 2018 Foreign U.S. Total Service cost $ 3,426 $ 383 $ 3,809 Interest cost 2,254 1,847 4,101 Expected return on plan assets (2,228) (2,803) (5,031) Settlement loss 2 — 2 Actuarial loss amortization 881 2,276 3,157 Prior service (credit) cost amortization (175) 59 (116) Net periodic benefit cost $ 4,160 $ 1,762 $ 5,922
Schedule of other changes recognized in other comprehensive income - pension plans [Table Text Block]	2020 2019 Foreign U.S. Total Foreign U.S. Total Net (gain) loss arising during the period $ (1,594) $ 1,536 $ (58) $ 3,826 $ 3,926 $ 7,752 Effect of plan amendment Recognition of amortization in net periodic benefit cost Settlement (loss) (39) (22,667) (22,706) — — — Prior service credit (cost) 1,325 50 1,375 196 — 196 Actuarial loss (758) 3,967 3,209 (1,015) (2,347) (3,362) Curtailment Recognition (3) — (3) — — — Effect of exchange rates on amounts included in AOCI 1,535 — 1,535 (61) — (61) Total recognized comprehensive loss (income) 466 (17,114) (16,648) 2,946 1,579 4,525 Total recognized benefit cost and other comprehensive loss (income) $ 3,436 $ 6,267 $ 9,703 $ 6,681 $ 4,447 $ 11,128 2018 Foreign U.S. Total Net gain arising during period $ (663) $ 453 $ (210) Recognition of amortization in net periodic benefit Prior service credit (cost) 175 (59) 116 Actuarial loss (883) (2,276) (3,159) Effect of exchange rates on amounts included (890) — (890) Total recognized (2,261) (1,882) (4,143) Total recognized other comprehensive loss $ 1,899 $ (120) $ 1,779
Other Postretirement Benefit Plans Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Schedule of components of net periodic benefit costs - pension plans [Table Text Block]	2020 2019 2018 Service cost $ 5 $ 6 $ 7 Interest cost 77 143 130 Actuarial loss amortization (5) — 42 Net periodic benefit costs $ 77 $ 149 $ 179
Schedule of other changes recognized in other comprehensive income - pension plans [Table Text Block]	2020 2019 2018 Net (gain) loss arising during period $ (864) $ 395 $ (443) Amortization of actuarial loss in net periodic benefit costs 5 — (42) Total recognized loss (859) 395 (485) Total recognized other comprehensive (income) loss $ (782) $ 544 $ (306)

Other Non-Current Liabilities (

Other Non-Current Liabilities (Tables)	12 Months Ended
Other Non-Current Liabilities (Tables)	Dec. 31, 2020
Other Liabilities Noncurrent [Abstract]
Schedule of Other Non-Current Liabilities [Table Text Block]	2020 2019 Inactive subsidiary litigation and settlement reserve $ 542 $ 19,678 Non-current income taxes payable 8,500 8,500 Uncertain tax positions (includes interest and penalties) 28,961 24,609 Fair value of interest rate swaps 4,672 415 Environmental reserves 4,610 5,259 Deferred and other long-term compensation 6,257 6,625 Other 1,627 1,298 Total other $ 55,169 $ 66,384

Equity and Noncontrolling Int_2

Equity and Noncontrolling Interest (Tables)	12 Months Ended
Equity and Noncontrolling Interest (Tables)	Dec. 31, 2020
Equity [Abstract]
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]	Defined Unrealized Gain (Loss) in Currency Benefit Translation Pension Available-for Derivative Adjustments Plans Sale Securities Instruments Total Balance as of December 31, 2017 $ (31,893) $ (34,093) $ 886 $ — $ (65,100) Other comprehensive (loss) income before (17,429) 1,543 (2,622) — (18,508) Amounts reclassified from AOCI — 3,085 435 — 3,520 Related tax amounts — (1,086) 459 — (627) Balance as of December 31, 2018 (49,322) (30,551) (842) — (80,715) Other comprehensive income (loss) before 4,754 (8,088) 2,951 (415) (798) Amounts reclassified from AOCI — 3,169 (301) — 2,868 Related tax amounts — 937 (557) 95 475 Balance as of December 31, 2019 (44,568) (34,533) 1,251 (320) (78,170) Other comprehensive income (loss) before 41,693 (6,617) 2,848 (4,257) 33,667 Amounts reclassified from AOCI — 24,141 (202) — 23,939 Related tax amounts — (6,458) (555) 979 (6,034) Balance as of December 31, 2020 $ (2,875) $ (23,467) $ 3,342 $ (3,598) $ (26,598)

Fair Value Measurements (Table)

Fair Value Measurements (Table)	12 Months Ended
Fair Value Measurements (Table)	Dec. 31, 2020
Fair Value Disclosures [Abstract]
Fair Value, Assets Measured on Recurring Basis [Table Text Block]	Fair Value Total Using Fair Value Assets Fair Value Level 1 Level 2 Level 3 Company-owned life insurance $ 1,961 $ — $ 1,961 $ — Total $ 1,961 $ — $ 1,961 $ — Fair Value Total Using Fair Value Assets Fair Value Level 1 Level 2 Level 3 Company-owned life insurance $ 1,782 $ — $ 1,782 $ — Total $ 1,782 $ — $ 1,782 $ —

Hedging Activities (Tables)

Hedging Activities (Tables)	12 Months Ended
Hedging Activities (Tables)	Dec. 31, 2020
General Discussion Of Derivative Instruments And Hedging Activities [Abstract]
Scheudule of fair values of the Company''s derivative instruments, Level 2 measurements [Table Text Block]	Fair Value Consolidated Balance Sheet December 31, Location 2020 2019 Derivatives designated as cash flow hedges: Interest rate swaps Other non-current liabilities $ 4,672 $ 415 $ 4,672 $ 415 December 31, 2020 2019 Derivatives designated as cash flow hedges: Interest rate swaps AOCI $ 3,598 $ 320 $ 3,598 $ 320 For the Years December 31, 2020 2019 2018 Amount and location of (expense) income reclassified from AOCI into (expense) income (Effective Portion) Interest expense, net $ (1,754) $ 29 $ —

Significant Accounting Polici_3

Significant Accounting Policies - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Significant Accounting Policies [Abstract]
Research and Development Expense	$ 40,000	$ 32,100	$ 24,500
Cash and cash equivalents description	The Company invests temporary and excess funds in money market securities and financial instruments having maturities within 90 days. The Company considers all highly liquid investments with original maturities of three months or less to be cash equivalents.
Schedule Of Equity Method Investments [Line Items]
Deferred tax liabilities,net	$ 192,763	211,094
Retained earnings	$ 423,940	$ 412,979
Income Tax Examination Minimum Likelihood Of Tax Benefits Being Realized Upon Ultimate Settlement	50.00%

Significant Accounting Polici_4

Significant Accounting Policies - Property, Plant and Equipment (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Capitalized Computer Software, Net	$ 2.3	$ 2.6
Building and Building Improvements [Member] \| Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	45 years
Building and Building Improvements [Member] \| Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	10 years
Machinery and Equipment [Member] \| Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	15 years
Machinery and Equipment [Member] \| Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	1 year
Software Development [Member] \| Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	5 years
Software Development [Member] \| Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	3 years

Significant Accounting Polici_5

Significant Accounting Policies - Intangible Assets (Details)	12 Months Ended
	Dec. 31, 2020
Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	20 years
Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	4 years

Significant Accounting Polici_6

Significant Accounting Policies - Concentration Risk (Details)	12 Months Ended
	Dec. 31, 2020
Top Customer Concentration Risk [Member] \| Sales Revenue Net [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	3.00%

Significant Accounting Polici_7

Significant Accounting Policies - Share-Based Compensation (Details)	12 Months Ended
	Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity Award Vesting Period	3 years
Forfeiture rate, Nonvested Stock Awards	13.00%
Employee Stock Option [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity Award Vesting Period	3 years
Options, Maximum Exercisable Life	7 years
Restricted Stock LTIP [Member] \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity Award Vesting Period	1 year
Annual Incentive Plan [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity Award Vesting Period	5 years
Annual Incentive Plan [Member] \| Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity Award Vesting Period	2 years
Restricted Stock Units (RSUs) LTIP Plan [Member] \| Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity Award Vesting Period	3 years

Siginficant Accounting Policies

Siginficant Accounting Policies - Hyperinflationary accounting (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Concentration Risk [Line Items]
Inflationary Percentage	100.00%
Equity Method Investments	$ 95,785,000	$ 93,822,000
Kelko Quaker Chemical S.A [Member]
Concentration Risk [Line Items]
Equity Method Investment Ownership Percentage	50.00%
Equity Method Investments	$ 0	0
Argentina [Member]
Concentration Risk [Line Items]
Amount Recognized In Income Due To Inflationary Accounting	$ 400,000	$ 1,000,000	$ 700,000
Currency Conversion Impacts Of HyperInflationary Accounting	During the years ended December 31, 2020, 2019 and 2018, the Company recorded $0.4 million, $1.0 million, and $0.7 million, respectively, of remeasurement losses associated with the applicable currency conversions related to Venezuela and Argentina.
Inflationary Percentage	100.00%
Assets Total [Member] \| Argentina [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	1.00%
Sales Revenue Net [Member] \| Argentina [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	1.00%

Business Combination - Houghton

Business Combination - Houghton (Details) $ / shares in Units, $ in Thousands, shares in Millions	Aug. 01, 2019USD ($)$ / sharesshares	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)
Business Acquisition [Line Items]
Business Combination Separately Recognized Transactions Additional Disclosures Acquisition Cost Expensed		$ 30,300	$ 38,000	$ 19,500
Business Combination Separately Recognized Transactions Liabilities Recognized		$ 7,500	6,600
Business Combination, Consideration Transferred [Abstract]
Fair value of common stock issued as consideration			$ 789,080
Houghton [Member]
Business Acquisition [Line Items]
Business Acquisition, Date of Acquisition Agreement	Aug. 1, 2019
Business Combination, Consideration Transferred [Abstract]
Cash transferred to Houghton shareholders	$ 170,829
Cash paid to extinguish Houghton debt obligation	702,556
Fair value of common stock issued as consideration	789,080
Total fair value of consideration transferred	$ 1,662,465
Business Acquisitions, Shares Acquired \| shares	4.3
Business Acquisition Share Price \| $ / shares	$ 182.27
Houghton [Member] \| Disposal Group, Not Discontinued Operations [Member] \| Certain steel and aluminum related product lines [Member]
Business Acquisition [Line Items]
Proceeds From Divestiture Of Businesses	$ 37,000
Divested product lines impact on Net Sales, percent	0.03

Business Combination - Hought_2

Business Combination - Houghton - Estimated Fair Values of Houghton Net Assets Acquired (Details) - USD ($) $ in Thousands	Aug. 01, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Business Acquisition [Line Items]
Goodwill		$ 631,212	$ 607,205	$ 83,333
Less: Fair value of common stock issued as consideration			789,080
Net cash paid for Norman Hay		$ 56,230	$ 893,412	$ 500
Houghton [Member]
Business Acquisition [Line Items]
Cash and cash equivalents	$ 75,821
Accounts receivable, net	178,922
Inventories, net	95,193
Prepaid expenses and other assets	11,318
Propery, plant & equipment	115,463
Right of use lease assets	10,673
Investments in associated companies	66,447
Other non-current assets	6,263
Intangible assets	1,028,400
Goodwill	499,540
Total Assets Purchased	2,088,040
Short-term borrowings, not refinanced at closing	9,297
Accounts payable, accrued expenses and other accrued liabilities	151,205
Long-term lease liabilities	6,607
Other Non-Current Liabilities	49,286
Deferred tax liabilities	209,180
Total Liabilities Assumed	425,575
Less: cash Acquired	75,821
Total consideration paid for Houghton	1,662,465
Less: Fair value of common stock issued as consideration	789,080
Net cash paid for Norman Hay	797,564
Houghton [Member] \| As initially Reported [Member]
Business Acquisition [Line Items]
Cash and cash equivalents	75,821
Accounts receivable, net	178,922
Inventories, net	95,193
Prepaid expenses and other assets	10,652
Propery, plant & equipment	115,529
Right of use lease assets	10,673
Investments in associated companies	66,447
Other non-current assets	4,710
Intangible assets	1,028,400
Goodwill	494,915
Total Assets Purchased	2,081,262
Short-term borrowings, not refinanced at closing	9,297
Accounts payable, accrued expenses and other accrued liabilities	150,078
Long-term lease liabilities	205,082
Other Non-Current Liabilities	6,607
Deferred tax liabilities	47,733
Total Liabilities Assumed	418,797
Less: cash Acquired	75,821
Total consideration paid for Houghton	1,662,465
Less: Fair value of common stock issued as consideration	789,080
Net cash paid for Norman Hay	797,564
Houghton [Member] \| Measurement period adjustments [Member]
Business Acquisition [Line Items]
Cash and cash equivalents	0
Accounts receivable, net	0
Inventories, net	0
Prepaid expenses and other assets	666
Propery, plant & equipment	(66)
Right of use lease assets	0
Investments in associated companies	0
Other non-current assets	1,553
Intangible assets	0
Goodwill	4,625
Total Assets Purchased	6,778
Short-term borrowings, not refinanced at closing	0
Accounts payable, accrued expenses and other accrued liabilities	1,127
Long-term lease liabilities	0
Other Non-Current Liabilities	1,553
Deferred tax liabilities	4,098
Total Liabilities Assumed	6,778
Less: cash Acquired	0
Total consideration paid for Houghton	0
Less: Fair value of common stock issued as consideration	0
Net cash paid for Norman Hay	$ 0

Business Combination - Hought_3

Business Combination - Houghton - Narrative and Pro Forma Information (Details) - USD ($) $ in Thousands	Aug. 01, 2019	Aug. 01, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Business Acquisition [Line Items]
Goodwill			$ 631,212	$ 607,205	$ 83,333
Business Combination Transaction-related Expenses			30,300	38,000	19,500
Business Combination Separately Recognized Transactions Liabilities Recognized			7,500	6,600
Other accrued liabilities			$ 92,107	83,605
Houghton [Member]
Business Acquisition [Line Items]
Percentage of Voting Interests Acquired	24.50%	24.50%
Intangible assets	$ 1,028,400	$ 1,028,400
Goodwill	499,540	499,540
Revenue of Acquiree	$ 299,800
Measurement period	1 year
Business Acquisition Pro Forma Information [Abstract]
Business Acquisitions Pro Forma Revenue				1,562,427	1,654,588
Net income attributable to Quaker Chemical Corporation				$ 94,537	$ 35,337
Houghton [Member] \| Customer Relationships [Member]
Business Acquisition [Line Items]
Intangible assets	$ 677,300	$ 677,300
Houghton [Member] \| Customer Relationships [Member] \| Minimum [Member]
Business Acquisition [Line Items]
Intangible Assets, Amortizable Life		15 years
Houghton [Member] \| Customer Relationships [Member] \| Maximum [Member]
Business Acquisition [Line Items]
Intangible Assets, Amortizable Life		18 years
Houghton [Member] \| Trademarks [Member]
Business Acquisition [Line Items]
Intangible assets	242,000	$ 242,000
Houghton [Member] \| Trademarks Formulations And Product Technology [Member]
Business Acquisition [Line Items]
Intangible assets	$ 109,100	$ 109,100
Intangible Assets, Amortizable Life		20 years
Korea Houghton Coporation [Member]
Business Acquisition [Line Items]
Percentage of Voting Interests Acquired				50.00%

Business Combination - Norman H

Business Combination - Norman Hay - Narrative (Details) $ in Thousands, £ in Millions	Oct. 01, 2019GBP (£)	Oct. 01, 2019USD ($)	Mar. 31, 2020GBP (£)	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)
Business Acquisition [Line Items]
Goodwill				$ 631,212	$ 607,205	$ 83,333
Norman Hay [Member]
Business Acquisition [Line Items]
Business Acquisition, Date of Acquisition Agreement				Oct. 1, 2019
Business Acquisition Name Of Acquired Entity	Norman Hay plc	Norman Hay plc
Purchase price	£ 80	$ 117,450
Post Closing Adjustment \| £			£ 2.5
Intangible assets		51,088
Goodwill		$ 29,302
Measurement period	1 year	1 year
Norman Hay [Member] \| Customer Relationships [Member]
Business Acquisition [Line Items]
Intangible assets		$ 36,900
Norman Hay [Member] \| Customer Relationships [Member] \| Minimum [Member]
Business Acquisition [Line Items]
Intangible Assets, Amortizable Life	13 years	13 years
Norman Hay [Member] \| Customer Relationships [Member] \| Maximum [Member]
Business Acquisition [Line Items]
Intangible Assets, Amortizable Life	17 years	17 years
Norman Hay [Member] \| Product technology [Member]
Business Acquisition [Line Items]
Intangible assets		$ 7,500
Intangible Assets, Amortizable Life	20 years	20 years
Norman Hay [Member] \| Trademarks [Member]
Business Acquisition [Line Items]
Intangible assets		$ 6,300
Norman Hay [Member] \| Trademarks [Member] \| Minimum [Member]
Business Acquisition [Line Items]
Intangible Assets, Amortizable Life	16 years	16 years
Norman Hay [Member] \| Trademarks [Member] \| Maximum [Member]
Business Acquisition [Line Items]
Intangible Assets, Amortizable Life	17 years	17 years
Norman Hay [Member] \| Noncompete Agreements [Member]
Business Acquisition [Line Items]
Intangible assets		$ 400
Norman Hay [Member] \| Noncompete Agreements [Member] \| Minimum [Member]
Business Acquisition [Line Items]
Intangible Assets, Amortizable Life	2 years	2 years
Norman Hay [Member] \| Noncompete Agreements [Member] \| Maximum [Member]
Business Acquisition [Line Items]
Intangible Assets, Amortizable Life	11 years	11 years

Business Combination - Norman_2

Business Combination - Norman Hay - Estimated Fair Values of Norman Hay Net Assets Acquired (Details) $ in Thousands, £ in Millions	Oct. 01, 2019GBP (£)	Oct. 01, 2019USD ($)	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)
Business Acquisition [Line Items]
Goodwill			$ 631,212	$ 607,205	$ 83,333
Norman Hay [Member]
Business Acquisition [Line Items]
Cash and cash equivalents		$ 18,981
Accounts receivable, net		15,471
Inventories, net		8,164
Prepaid expenses and other assets		4,341
Propery, plant & equipment		14,981
Right of use lease assets		10,608
Intangible assets		51,088
Goodwill		29,302
Total Assets Purchased		152,936
Long-term debt included current portions		485
Accounts payable, accrued expenses and other accrued liabilities		12,756
Deferred tax liabilities		13,651
Long-term lease liabilities		8,594
Total Liabilities Assumed		35,486
Total fair value of consideration transferred	£ 80	117,450
Estimated purchase price settlement		0
Less: cash Acquired		18,981
Net cash paid		98,469
Norman Hay [Member] \| As initially Reported [Member]
Business Acquisition [Line Items]
Cash and cash equivalents		18,981
Accounts receivable, net		15,471
Inventories, net		8,213
Prepaid expenses and other assets		4,203
Propery, plant & equipment		14,981
Right of use lease assets		10,608
Intangible assets		51,088
Goodwill		29,384
Total Assets Purchased		152,929
Long-term debt included current portions		485
Accounts payable, accrued expenses and other accrued liabilities		13,488
Deferred tax liabilities		12,746
Long-term lease liabilities		8,594
Total Liabilities Assumed		35,313
Total fair value of consideration transferred		117,616
Estimated purchase price settlement		3,287
Less: cash Acquired		18,981
Net cash paid		95,348
Norman Hay [Member] \| Measurement period adjustments [Member]
Business Acquisition [Line Items]
Cash and cash equivalents		0
Accounts receivable, net		0
Inventories, net		(49)
Prepaid expenses and other assets		138
Propery, plant & equipment		0
Right of use lease assets		0
Intangible assets		0
Goodwill		(82)
Total Assets Purchased		7
Long-term debt included current portions		0
Accounts payable, accrued expenses and other accrued liabilities		(732)
Deferred tax liabilities		905
Long-term lease liabilities		0
Total Liabilities Assumed		173
Total fair value of consideration transferred		(166)
Estimated purchase price settlement		(3,287)
Less: cash Acquired		0
Net cash paid		$ 3,121

Business Combination - Coral- E

Business Combination - Coral- Estimated Fair Values of Houghton Net Assets Acquired (Details) - USD ($) $ in Thousands	Dec. 22, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Business Acquisition [Line Items]
Goodwill		$ 631,212	$ 607,205	$ 83,333
Coral Chemical Company [Member]
Business Acquisition [Line Items]
Intangible assets	$ 30,300
Goodwill	2,800
Total fair value of consideration transferred	54,100
Coral Chemical Company [Member] \| As initially Reported [Member]
Business Acquisition [Line Items]
Cash and cash equivalents	958
Accounts receivable, net	8,473
Inventories, net	4,527
Prepaid expenses and other assets	181
Propery, plant & equipment	10,467
Intangible assets	30,300
Goodwill	2,814
Total Assets Purchased	57,720
Long-term debt included current portions	183
Accounts payable, accrued expenses and other accrued liabilities	3,482
Business Acquisition, Purchase Price Allocation, Liabilities Assumed	3,665
Total fair value of consideration transferred	54,055
Less: cash Acquired	958
Net cash paid	$ 53,097

Business Combination - Coral -

Business Combination - Coral - Narrative (Details) - USD ($) $ in Thousands	Dec. 22, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Business Acquisition [Line Items]
Goodwill		$ 631,212	$ 607,205	$ 83,333
Coral Chemical Company [Member]
Business Acquisition [Line Items]
Business Acquisition, Date of Acquisition Agreement	Dec. 22, 2020
Business Acquisition Name Of Acquired Entity	Coral Chemical Company
Purchase price	$ 54,100
Intangible assets	30,300
Goodwill	$ 2,800
Measurement period	1 year
Coral Chemical Company [Member] \| Customer Relationships [Member]
Business Acquisition [Line Items]
Intangible assets	$ 22,000
Coral Chemical Company [Member] \| Customer Relationships [Member] \| Minimum [Member]
Business Acquisition [Line Items]
Intangible Assets, Amortizable Life	21 years
Coral Chemical Company [Member] \| Customer Relationships [Member] \| Maximum [Member]
Business Acquisition [Line Items]
Intangible Assets, Amortizable Life	24 years
Coral Chemical Company [Member] \| Product technology [Member]
Business Acquisition [Line Items]
Intangible assets	$ 4,700
Coral Chemical Company [Member] \| Product technology [Member] \| Minimum [Member]
Business Acquisition [Line Items]
Intangible Assets, Amortizable Life	14 years
Coral Chemical Company [Member] \| Product technology [Member] \| Maximum [Member]
Business Acquisition [Line Items]
Intangible Assets, Amortizable Life	15 years
Coral Chemical Company [Member] \| Trademarks and Formulations [Member]
Business Acquisition [Line Items]
Intangible assets	$ 3,600
Intangible Assets, Amortizable Life	17 years

Business Combination - Other Ac

Business Combination - Other Acquisitions - Narrative (Details) $ in Thousands, kr in Millions, R in Millions	1 Months Ended	3 Months Ended					12 Months Ended
	Mar. 31, 2018USD ($)	Jun. 30, 2020DKK (kr)	Jun. 30, 2020USD ($)	Mar. 31, 2020USD ($)	Mar. 31, 2020ZAR (R)	Mar. 31, 2019USD ($)	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)
Business Acquisition [Line Items]
Payments related to acquisitions, net of cash acquired							$ 56,230	$ 893,412	$ 500
Goodwill, Acquired During Period							3,345	$ 524,297
Tel Nordic ApS[Member]
Business Acquisition [Line Items]
Intangible assets			$ 2,400
Intangible Assets, Amortizable Life		17 years	17 years
Payments related to acquisitions, net of cash acquired		kr 20	$ 2,900
Goodwill, Acquired During Period			500
Post Closing Adjustment		kr 0.4	$ 100
South Africa Equity Affiliate [Member]
Business Acquisition [Line Items]
Payments related to acquisitions, net of cash acquired				$ 1,000	R 16.7
Adjustments To Additional Paid In Capital Other				$ 700
Equity Method Investment Ownership Percentage				49.00%	49.00%
Mining North America Trademarks Formulations And Product Technology [Member]
Business Acquisition [Line Items]
Intangible Assets, Amortizable Life	10 years
Payments related to acquisitions, net of cash acquired	$ 1,000
Cash Paid for Acquisitions	$ 500					$ 500
Tin Plating Solutions [Member]
Business Acquisition [Line Items]
Payments related to acquisitions, net of cash acquired							$ 25,000

Recently Issued Accounting St_2

Recently Issued Accounting Standards - Narrative (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Jan. 01, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Allowance for doubtful accounts	$ 13,145		$ 11,716	$ 5,187	$ 5,457
Deferred tax liabilities	176,197		196,349
Retained earnings	$ 423,940		$ 412,979
ASU 2016-13 [Member] \| Cumulative Effect, Period of Adoption, Adjustment [Member]
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Allowance for doubtful accounts		$ 1,100
Deferred tax liabilities		200
Retained earnings		$ 900

Segments Table (Details)

Segments Table (Details) - USD ($) $ in Thousands	12 Months Ended
Segments Table (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Segment Reporting Information [Line Items]
Net sales	$ 1,417,677	$ 1,133,503	$ 867,520
Operating Earnings, Excluding Indirect Operating Expenses	333,588	251,704	195,475
Segment assets	2,891,834	2,850,316	709,665
Long-Lived Assets	369,970	390,628	137,294
Capital Expenditures	17,901	15,545	12,886
Depreciation	27,351	17,766	12,196
Global Specialty Businesses [Member]
Segment Reporting Information [Line Items]
Net sales	269,030	207,973	160,433
Operating Earnings, Excluding Indirect Operating Expenses	79,690	58,881	42,931
Segment assets	511,458	550,055	174,220
Long-Lived Assets	59,091	69,184	26,949
Capital Expenditures	1,918	2,021	1,345
Depreciation	3,544	2,248	1,985
Americas [Member]
Segment Reporting Information [Line Items]
Net sales	450,161	392,121	297,601
Operating Earnings, Excluding Indirect Operating Expenses	96,379	78,297	62,686
Segment assets	969,551	926,122	180,037
Long-Lived Assets	122,302	139,170	60,745
Capital Expenditures	6,451	6,404	3,401
Depreciation	12,322	7,500	4,225
EMEA [Member]
Segment Reporting Information [Line Items]
Net sales	383,187	285,570	216,984
Operating Earnings, Excluding Indirect Operating Expenses	69,163	47,014	36,119
Segment assets	697,821	688,663	149,984
Long-Lived Assets	69,344	56,108	23,383
Capital Expenditures	3,844	3,263	2,081
Depreciation	6,813	4,560	3,434
Asia Pacific [Member]
Segment Reporting Information [Line Items]
Net sales	315,299	247,839	192,502
Operating Earnings, Excluding Indirect Operating Expenses	88,356	67,512	53,739
Segment assets	713,004	685,476	205,424
Long-Lived Assets	119,233	126,166	26,217
Capital Expenditures	5,688	3,857	6,059
Depreciation	4,672	3,458	2,552
Non Domestic [Member]
Segment Reporting Information [Line Items]
Net sales	963,200	719,800	534,600
Long-Lived Assets	176,600	174,400	60,800
Intersegment Elimination [Member] \| Global Specialty Businesses [Member]
Segment Reporting Information [Line Items]
Net sales	4,700	5,400	5,300
Intersegment Elimination [Member] \| Americas [Member]
Segment Reporting Information [Line Items]
Net sales	9,100	7,300	8,300
Intersegment Elimination [Member] \| EMEA [Member]
Segment Reporting Information [Line Items]
Net sales	22,000	20,300	21,900
Intersegment Elimination [Member] \| Asia Pacific [Member]
Segment Reporting Information [Line Items]
Net sales	600	200	500
Operating Segments [Member]
Segment Reporting Information [Line Items]
Net sales	1,417,677	1,133,503	867,520
Operating Segments [Member] \| Global Specialty Businesses [Member]
Segment Reporting Information [Line Items]
Net sales	269,030	207,973	160,433
Operating Segments [Member] \| Americas [Member]
Segment Reporting Information [Line Items]
Net sales	604,957	541,549	419,766
Operating Segments [Member] \| Americas [Member] \| Global Specialty Businesses [Member]
Segment Reporting Information [Line Items]
Net sales	154,796	149,428	122,165
Operating Segments [Member] \| EMEA [Member]
Segment Reporting Information [Line Items]
Net sales	451,351	315,685	233,597
Operating Segments [Member] \| EMEA [Member] \| Global Specialty Businesses [Member]
Segment Reporting Information [Line Items]
Net sales	68,164	30,115	16,613
Operating Segments [Member] \| Asia Pacific [Member]
Segment Reporting Information [Line Items]
Net sales	361,369	276,269	214,157
Operating Segments [Member] \| Asia Pacific [Member] \| Global Specialty Businesses [Member]
Segment Reporting Information [Line Items]
Net sales	$ 46,070	$ 28,430	$ 21,655

Segments - Reconciliation (Deta

Segments - Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Reconciliation From Segment Totals To Consolidated Abstract
Operating Earnings, Excluding Indirect Operating Expenses	$ 333,588	$ 251,704	$ 195,475
Combination-related expenses	(29,790)	(35,477)	(16,661)
Restructuring and related charges	(5,541)	(26,678)	0
Fair value step up of inventory sold	(226)	(11,714)	0
Indefinite-lived intangible asset impairment	(38,000)	0	0
Non-operating Charges	(143,202)	(104,572)	(83,515)
Depreciation of corporate assets and amortization	(57,469)	(27,129)	(7,518)
Operating income	59,360	46,134	87,781
Other expense, net	(5,618)	(254)	(642)
Interest expense, net	(26,603)	(16,976)	(4,041)
Income before taxes and equity in net income of associated companies	$ 27,139	$ 28,904	$ 83,098

Net Sales and Revenue Recogni_3

Net Sales and Revenue Recognition - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Revenues [Abstract]
Net Reporting Amount	$ 42.5	$ 48	$ 47.1
Deferred Revenue	$ 4	$ 2.2
Top Five Customers Concentration Risk [Member] \| Sales Revenue Net [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	10.00%
Top Customer Concentration Risk [Member] \| Sales Revenue Net [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	3.00%

Net Sales and Revenue Recogni_4

Net Sales and Revenue Recognition - Product Lines (Details) - Sales Revenue Net [Member]	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Metal removal fluids Line [Member]
Segment Reporting Information [Line Items]
Concentration Risk, Percentage	23.90%	19.90%	15.40%
Rolling Lubricants Product Line [Member]
Segment Reporting Information [Line Items]
Concentration Risk, Percentage	21.80%	21.90%	25.50%
Hydraulic Fluids Product Line [Member]
Segment Reporting Information [Line Items]
Concentration Risk, Percentage	13.30%	13.00%	13.00%

Net Sales and Revenue Recogni_5

Net Sales and Revenue Recognition (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Product Information [Line Items]
Net sales	$ 1,417,677	$ 1,133,503	$ 867,520
Global Specialty Businesses [Member]
Product Information [Line Items]
Net sales	269,030	207,973	160,433
Americas [Member]
Product Information [Line Items]
Net sales	450,161	392,121	297,601
EMEA [Member]
Product Information [Line Items]
Net sales	383,187	285,570	216,984
EMEA [Member] \| Product [Member]
Product Information [Line Items]
Net sales	383,187	285,570	216,984
Asia Pacific [Member]
Product Information [Line Items]
Net sales	315,299	247,839	192,502
Asia Pacific [Member] \| Product [Member]
Product Information [Line Items]
Net sales	315,299	247,839	192,502
Operating Segments [Member]
Product Information [Line Items]
Net sales	1,417,677	1,133,503	867,520
Operating Segments [Member] \| Transferred At Point In Time [Member]
Product Information [Line Items]
Net sales	1,368,129	1,105,304	847,886
Operating Segments [Member] \| Transferred Over Time [Member]
Product Information [Line Items]
Net sales	49,548	28,199	19,634
Operating Segments [Member] \| Product [Member]
Product Information [Line Items]
Net sales	1,148,647	925,530	707,087
Operating Segments [Member] \| Metals [Member]
Product Information [Line Items]
Net sales	439,111	414,259	385,918
Operating Segments [Member] \| Metalworking [Member]
Product Information [Line Items]
Net sales	709,536	511,271	321,169
Operating Segments [Member] \| Global Specialty Businesses [Member]
Product Information [Line Items]
Net sales	269,030	207,973	160,433
Operating Segments [Member] \| Americas [Member]
Product Information [Line Items]
Net sales	604,957	541,549	419,766
Operating Segments [Member] \| Americas [Member] \| Transferred At Point In Time [Member]
Product Information [Line Items]
Net sales	580,663	525,802	408,402
Operating Segments [Member] \| Americas [Member] \| Transferred Over Time [Member]
Product Information [Line Items]
Net sales	24,294	15,747	11,364
Operating Segments [Member] \| Americas [Member] \| Product [Member]
Product Information [Line Items]
Net sales	450,161	392,121	297,601
Operating Segments [Member] \| Americas [Member] \| Metals [Member]
Product Information [Line Items]
Net sales	163,135	171,784	164,263
Operating Segments [Member] \| Americas [Member] \| Metalworking [Member]
Product Information [Line Items]
Net sales	287,026	220,337	133,338
Operating Segments [Member] \| Americas [Member] \| Global Specialty Businesses [Member]
Product Information [Line Items]
Net sales	154,796	149,428	122,165
Operating Segments [Member] \| EMEA [Member]
Product Information [Line Items]
Net sales	451,351	315,685	233,597
Operating Segments [Member] \| EMEA [Member] \| Transferred At Point In Time [Member]
Product Information [Line Items]
Net sales	434,549	310,274	233,372
Operating Segments [Member] \| EMEA [Member] \| Transferred Over Time [Member]
Product Information [Line Items]
Net sales	16,802	5,411	225
Operating Segments [Member] \| EMEA [Member] \| Product [Member]
Product Information [Line Items]
Net sales	383,187	285,570	216,984
Operating Segments [Member] \| EMEA [Member] \| Metals [Member]
Product Information [Line Items]
Net sales	107,880	100,605	101,028
Operating Segments [Member] \| EMEA [Member] \| Metalworking [Member]
Product Information [Line Items]
Net sales	275,307	184,965	115,956
Operating Segments [Member] \| EMEA [Member] \| Global Specialty Businesses [Member]
Product Information [Line Items]
Net sales	68,164	30,115	16,613
Operating Segments [Member] \| Asia Pacific [Member]
Product Information [Line Items]
Net sales	361,369	276,269	214,157
Operating Segments [Member] \| Asia Pacific [Member] \| Transferred At Point In Time [Member]
Product Information [Line Items]
Net sales	352,917	269,228	206,112
Operating Segments [Member] \| Asia Pacific [Member] \| Transferred Over Time [Member]
Product Information [Line Items]
Net sales	8,452	7,041	8,045
Operating Segments [Member] \| Asia Pacific [Member] \| Product [Member]
Product Information [Line Items]
Net sales	315,299	247,839	192,502
Operating Segments [Member] \| Asia Pacific [Member] \| Metals [Member]
Product Information [Line Items]
Net sales	168,096	141,870	120,627
Operating Segments [Member] \| Asia Pacific [Member] \| Metalworking [Member]
Product Information [Line Items]
Net sales	147,203	105,969	71,875
Operating Segments [Member] \| Asia Pacific [Member] \| Global Specialty Businesses [Member]
Product Information [Line Items]
Net sales	$ 46,070	$ 28,430	$ 21,655

Leases - Narrative (Details)

Leases - Narrative (Details) - USD ($)	12 Months Ended
Leases - Narrative (Details) - USD ($)	Dec. 31, 2020	Dec. 31, 2019
Lessee, Lease, Description [Line Items]
Operating Lease Cost	$ 14,200,000	$ 9,400,000
Short Term Lease Cost	1,300,000	1,500,000
Variable Lease Cost	0	0
Sublease Income	0	0
Operating Lease Payments	14,100,000	$ 9,200,000
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	$ 6,900,000
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Total assets
Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration]	Total liabilities
Maximum [Member]
Lessee, Lease, Description [Line Items]
Lessee Operating Lease Term Of Contract	11 years
Land [Member] \| Maximum [Member]
Lessee, Lease, Description [Line Items]
Lessee Operating Lease Term Of Contract	95 years

Leases - Supplemental Balance S

Leases - Supplemental Balance Sheet Information (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Lessee, Lease, Description [Abstract]
Right of use lease assets	$ 38,507	$ 42,905
Short-term lease liabilities	10,901	11,177
Long-term lease liabilities	27,070	31,273
Total operating lease liabilities	$ 37,971	$ 42,450
Operating Lease Weighted Average Remaining Lease Term	6 years	6 years 2 months 12 days
Operating Lease Weighted Average Discount Rate Percent	420.00%	421.00%

Leases - Maturities of Operatin

Leases - Maturities of Operating Lease Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Operating Lease Liabilities Payments Due [Abstract]
For the year ended December 31, 2021	$ 12,342
For the year ended December 31, 2022	8,395
For the year ended December 31, 2023	6,220
For the year ended December 31, 2024	4,610
For the year ended December 31, 2025	3,836
For the year ended December 31, 2026 and beyond	8,141
Total lease payments	43,544
Less: imputed interest	(5,573)
Present value of lease liabilities	$ 37,971	$ 42,450

Restructuring Activities - Narr

Restructuring Activities - Narrative (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2020USD ($)People	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)
Restructuring Cost and Reserve [Abstract]
Restructuring and related charges	$ 5,541	$ 26,678	$ 0
Restructuring And Related Cost Expected Number Of Positions Eliminated \| People	350
Real Estate Held for sale	$ 10,000
Gain Loss On Sale Of Other Assets	$ 600

Restructuring Activities (Detai

Restructuring Activities (Details) - USD ($) $ in Thousands	12 Months Ended
Restructuring Activities (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Restructuring Reserve [Roll Forward]
Restructuring and related charges	$ 5,541	$ 26,678	$ 0
QH Program [Member]
Restructuring Reserve [Roll Forward]
Accrued Restructuring, Beginning Balance	18,043	0
Restructuring and related charges	5,541	26,678
Cash Payments	(15,745)	(8,899)
Currency Translation Adjustments	409	264
Accrued Restructuring, Ending Balance	$ 8,248	$ 18,043	$ 0

Share-Based Compensation - Narr

Share-Based Compensation - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share-based Compensation [Abstract]
Exercised Options, Intrinsic Value	$ 6,500	$ 2,500	$ 2,000
Equity Award Vesting Period	3 years
Share Based Compensation [Line Items]
ESPP: Purchase Price Percentage	85.00%
ESPP: Discount from Market Price	15.00%
Director Stock Ownership Plan Maximum Number of Shares Authorized Under Plan	75,000
Director Retainer Annual Fee	$ 100
Director Stock ownership Percentage Threshold	400.00%
Director Stock Ownership Plan Percentage Cash	25.00%
Share-based Compensation Expense	$ 10,996	$ 4,861	$ 3,724
Director Stock Ownership Plan Percentage Stock	75.00%
Director Stock Ownership Plan Percentage Total	100.00%
Risk-free Interest Rate	0.36%	1.52%	2.54%	1.67%
Expected Term (Years)	4 years	4 years	4 years	4 years
Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross	49,115	51,610	35,842	42,477
Employee Stock Option [Member]
Share Based Compensation [Line Items]
Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1	1 year 10 months 24 days
Restricted Stock LTIP [Member]
Share Based Compensation [Line Items]
Nonvested Stock Awards Granted	28,244
Unrecognized Share-based Compensation Expense, Nonvested Stock Award	$ 4,700
Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1	1 year 7 months 6 days
Annual Incentive Plan [Member]
Share Based Compensation [Line Items]
Share-based Compensation Expense	$ 0	$ 0	$ 0
Restricted Stock Units (RSUs) LTIP Plan [Member]
Share Based Compensation [Line Items]
Nonvested Stock Awards Granted	6,030
Unrecognized Share-based Compensation Expense, Nonvested Stock Award	$ 800
Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1	2 years
Combination And Other Acquisition-Related [Member]
Share Based Compensation [Line Items]
Share-based Compensation Expense	$ 1,500	900	100
Performance Incentive Stock Units [Member]
Share Based Compensation [Line Items]
Share-based Compensation Expense	840	$ 0	$ 0
Unrecognized Compensation Expense, Options	$ 2,500
Vesting Shares Target Lower Percent	0.00%
Vesting Shares Target Upper Percent	200.00%
Risk-free Interest Rate	0.28%
Expected Term (Years)	3 years
Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1	2 years 2 months 12 days
Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross	20,000
Defined Contribution Plan [Member]
Share Based Compensation [Line Items]
Defined Contribution Plan, Employer Matching Contribution, Percent	6.00%
Defined contribution plan employer matching contribution percent maximum	3.00%
Defined Contribution Plan Employer Matching Contribution Percent Of Match	50.00%
Defined Contribution Plan Employer Discretionary Contribution Amount	$ 3,100

Share-Based Compensation - Expe

Share-Based Compensation - Expense Table (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Share-based Compensation Expense	$ 10,996	$ 4,861	$ 3,724
Stock Options Compensation Expense [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Share-based Compensation Expense	1,491	1,448	1,053
Nonvested Stock Awards Compensation Expense [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Share-based Compensation Expense	5,012	3,206	2,459
Matching Stock Contribution 401 K Plan Compensation Expense [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Share-based Compensation Expense	3,112	0	0
Employee Stock Purchase Plan Compensation Expense [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Share-based Compensation Expense	0	84	89
Directors Stock Ownership Plan Compensation Expense [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Share-based Compensation Expense	541	123	123
Performance Incentive Stock Units [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Share-based Compensation Expense	840	0	0
Annual Incentive Plan [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Share-based Compensation Expense	$ 0	$ 0	$ 0

Share-Based Compensation - Opti

Share-Based Compensation - Option Rollforward (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Roll [Forward]
Beginning Balance	144,412
Options Granted	49,115	51,610	35,842	42,477
Options Exercised	(83,191)
Ending Balance	110,336	144,412
Options Expected to Vest	92,890
Options Exerciseable	17,446
Weighted Average Exercise Price [Abstract]
Outstanding at beginning of year	$ 137.15
Options Granted	136.64
Options Exercised	128.42
Outstanding at End of Period	143.51	$ 137.15
Options Expected to Vest	144.86
Options Exerciseable	$ 136.32
Share Based Compensation Arrangement By Share Based Payment Award Options Additional Disclosures [Abstract]
Weighted Average Remaining Contractual Term, Outstanding	5 years 2 months 12 days
Weighted Average Remaining Contractual Term, Expected to Vest	5 years 7 months 6 days
Weighted Average Remaining Contractual Term, Exercisable	3 years 4 months 24 days
Outstanding Options, Intrinsic Value	$ 12,015
Expected to Vest Options, Intrinsic Value	9,990
Exercisable Options, Intrinsic Value	$ 2,025

Share-Based Compensation - Op_2

Share-Based Compensation - Option Summary (Details)	12 Months Ended
Share-Based Compensation - Option Summary (Details)	Dec. 31, 2020$ / sharesshares
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]
Number of Outstanding Options, Exercise Price Range \| shares	110,336
Weighted Average Contractual Life, Outstanding Options, Exercise Price Range	5 years 2 months 12 days
Weighted Average Exercise Price, Outstanding Options, Exercise Price Range	$ 143.51
Number of Exercisable Options, Exercise Price Range \| shares	17,446
Weighted Average Exercise Price, Exercisable Options, Exercise Price Range	$ 136.32
$70.01 - $80.00
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]
Exercise Price Range, Lower Range Limit	70.01
Exercise Price Range, Upper Range Limit	$ 80
Number of Outstanding Options, Exercise Price Range \| shares	2,133
Weighted Average Contractual Life, Outstanding Options, Exercise Price Range	1 year
Weighted Average Exercise Price, Outstanding Options, Exercise Price Range	$ 72.12
Number of Exercisable Options, Exercise Price Range \| shares	2,133
Weighted Average Exercise Price, Exercisable Options, Exercise Price Range	$ 72.12
$80.01 - $90.00
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]
Exercise Price Range, Lower Range Limit	80.01
Exercise Price Range, Upper Range Limit	$ 90
Number of Outstanding Options, Exercise Price Range \| shares	1,309
Weighted Average Contractual Life, Outstanding Options, Exercise Price Range	1 year
Weighted Average Exercise Price, Outstanding Options, Exercise Price Range	$ 87.30
Number of Exercisable Options, Exercise Price Range \| shares	1,309
Weighted Average Exercise Price, Exercisable Options, Exercise Price Range	$ 87.30
$90.01 - $130.00
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]
Exercise Price Range, Lower Range Limit	90.01
Exercise Price Range, Upper Range Limit	$ 130
Number of Outstanding Options, Exercise Price Range \| shares	0
Weighted Average Exercise Price, Outstanding Options, Exercise Price Range	$ 0
Number of Exercisable Options, Exercise Price Range \| shares	0
Weighted Average Exercise Price, Exercisable Options, Exercise Price Range	$ 0
$130.01 - $140.00
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]
Exercise Price Range, Lower Range Limit	130.01
Exercise Price Range, Upper Range Limit	$ 140
Number of Outstanding Options, Exercise Price Range \| shares	51,732
Weighted Average Contractual Life, Outstanding Options, Exercise Price Range	6 years
Weighted Average Exercise Price, Outstanding Options, Exercise Price Range	$ 136.54
Number of Exercisable Options, Exercise Price Range \| shares	2,617
Weighted Average Exercise Price, Exercisable Options, Exercise Price Range	$ 134.60
$140.01 - $150.00
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]
Exercise Price Range, Lower Range Limit	140.01
Exercise Price Range, Upper Range Limit	$ 150
Number of Outstanding Options, Exercise Price Range \| shares	0
Weighted Average Exercise Price, Outstanding Options, Exercise Price Range	$ 0
Number of Exercisable Options, Exercise Price Range \| shares	0
Weighted Average Exercise Price, Exercisable Options, Exercise Price Range	$ 0
$150.01 - $160.00
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]
Exercise Price Range, Lower Range Limit	150.01
Exercise Price Range, Upper Range Limit	$ 160
Number of Outstanding Options, Exercise Price Range \| shares	55,162
Weighted Average Contractual Life, Outstanding Options, Exercise Price Range	4 years 9 months 18 days
Weighted Average Exercise Price, Outstanding Options, Exercise Price Range	$ 154.14
Number of Exercisable Options, Exercise Price Range \| shares	11,387
Weighted Average Exercise Price, Exercisable Options, Exercise Price Range	$ 154.37

Share-Based Compensation - Op_3

Share-Based Compensation - Options Grants (Details) - shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share-Based Compensation Arrangement By Share-Based Payment Award Fair Value Assumptions And Methodology [Abstract]
Options Granted	49,115	51,610	35,842	42,477
Dividend Yield	0.99%	1.12%	1.37%	1.49%
Expected Volatility	31.57%	26.29%	24.73%	25.52%
Risk-free Interest Rate	0.36%	1.52%	2.54%	1.67%
Expected Term (Years)	4 years	4 years	4 years	4 years

Share-Based Compensation - Op_4

Share-Based Compensation - Option Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Share-based Compensation Expense	$ 10,996	$ 4,861	$ 3,724
2020 Stock option awards [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Share-based Compensation Expense	385	0	0
Unrecognized Compensation Expense, Options	1,200
2019 Stock option awards [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Share-based Compensation Expense	698	665	0
Unrecognized Compensation Expense, Options	300
2018 Stock option awards [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Share-based Compensation Expense	357	364	310
Unrecognized Compensation Expense, Options	100
2017 Stock option awards [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Share-based Compensation Expense	$ 51	$ 369	$ 367

Share-Based Compensation - Rest

Share-Based Compensation - Restricted Stock Rollforward (Details)	12 Months Ended
	Dec. 31, 2020$ / sharesshares
Restricted Stock LTIP [Member]
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested [Roll Forward]
Beginning Balance \| shares	64,500
Nonvested Stock Awards Granted \| shares	28,244
Nonvested Stock Awards Vested \| shares	(19,195)
Nonvested Stock Awards Forfeited \| shares	(1,781)
Ending Balance \| shares	71,768
Weighted Average Grant Date Fair Value, Nonvested Stock Awards, Beginning of Period \| $ / shares	$ 152.67
Weighted Average Grant Date Fair Value, Nonvested Stock Awards Granted \| $ / shares	145.63
Weighted Average Grant Date Fair Value, Nonvested Stock Awards Vested \| $ / shares	148.15
Weighted Average Grant Date Fair Value, Nonvested Stock Awards Forfeited \| $ / shares	150.27
Weighted Average Grant Date Fair Value, Nonvested Stock Awards, End of Period \| $ / shares	$ 151.17
Restricted Stock Units (RSUs) LTIP Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested [Roll Forward]
Beginning Balance \| shares	8,655
Nonvested Stock Awards Granted \| shares	6,030
Nonvested Stock Awards Vested \| shares	(1,791)
Nonvested Stock Awards Forfeited \| shares	(2,049)
Ending Balance \| shares	10,845
Weighted Average Grant Date Fair Value, Nonvested Stock Awards, Beginning of Period \| $ / shares	$ 152.09
Weighted Average Grant Date Fair Value, Nonvested Stock Awards Granted \| $ / shares	141.65
Weighted Average Grant Date Fair Value, Nonvested Stock Awards Vested \| $ / shares	141.92
Weighted Average Grant Date Fair Value, Nonvested Stock Awards Forfeited \| $ / shares	153.50
Weighted Average Grant Date Fair Value, Nonvested Stock Awards, End of Period \| $ / shares	$ 147.70

Other Income (Expense) (Details

Other Income (Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
Other Income (Expense) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Other Income and Expenses [Abstract]
Income from third party license fees	$ 999	$ 1,035	$ 862
Foreign exchange gains (losses), net	(6,082)	223	(807)
Gain (loss) on fixed asset disposals, net	(871)	58	657
Non-income tax refunds and other related credits	3,345	1,118	668
Pension and post retirement benefit costs, non-service components	(21,592)	(2,805)	(2,285)
Insurance solvency recovery	18,144	60	90
Other Operating Income Expense Net	439	57	173
Other expense, net	(5,618)	(254)	(642)
Narrative [Abstract]
Foreign Currency Transaction Loss Before Tax	400	$ 1,000	400
Foreign Currency Transaction Gain, before Tax			400
Gain (loss) on disposition of assets	(600)		$ 600
Defined Benefit Plan Premium Refund	1,600
Pension Settlement Charge	$ 22,700

Income Taxes - Components of Ex

Income Taxes - Components of Expense and Earnings (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Current Income Tax Expense (Benefit) [Abstract]
Federal	$ (1,359)	$ (239)	$ 6,583
State	1,171	352	(1,844)
Foreign	33,173	26,213	12,114
Current Income Tax Expense (Benefit), Total	32,985	26,326	16,853
Deferred Income Tax Expense (Benefit) [Abstract]
Federal	(28,437)	(9,267)	7,859
State	(3,087)	(396)	(173)
Foreign	(6,757)	(14,579)	511
Income Tax Expense (Benefit), Total	(5,296)	2,084	25,050
Components Of Earnings Before Taxes [Abstract]
U.S.	(66,585)	(46,697)	27,387
Foreign	93,724	75,601	55,711
Income before taxes and equity in net income of associated companies	$ 27,139	$ 28,904	$ 83,098

Income Taxes - Deferred Tax Bal

Income Taxes - Deferred Tax Balances (Details) - USD ($)	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Retirement benefits	$ 15,237,000	$ 15,142,000
Allowance for doubtful accounts	2,316,000	2,253,000
Insurance and litigation reserves	842,000	1,002,000
Performance incentives	5,914,000	7,213,000
Equity-based compensation	1,282,000	1,050,000
Prepaid expense	756,000	2,976,000
Insurance settlement	0	3,895,000
Operating loss carryforward	16,693,000	16,044,000
Foreign tax credit and other credits	24,873,000	34,384,000
Interest	16,812,000	11,479,000
Restructuring reserves	1,121,000	2,167,000
Right of use lease assets	9,346,000	10,015,000
Royalties and license fees	0	2,156,000
Inventory reserves	2,225,000	2,163,000
Research and development	7,974,000	2,580,000
Other	3,005,000	1,317,000
Total deferred tax assets, gross	108,396,000	115,836,000
Valuation allowance	(21,511,000)	(13,834,000)	$ (7,520,000)	$ (7,401,000)
Total deferred tax assets, net	86,885,000	102,002,000
Depreciation	15,473,000	17,754,000
Foreign pension and other	1,807,000	1,269,000
Amortization and other	222,794,000	254,359,000
Lease liabilities	9,151,000	9,965,000
Outside basis in equity investment	7,938,000	6,776,000
Unremitted earnings	5,919,000	8,228,000
Total deferred tax liabilities	$ 263,082,000	$ 298,351,000

Income Taxes - Valuation Allowa

Income Taxes - Valuation Allowance Rollforward (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Valuation allowance [Abstract]
Valuation Allowances, Beginning Balance	$ 13,834	$ 7,520	$ 7,401
Purchase Accounting Adjustment	7,148	13,752	0
Additional Valuation Allowance	2,738	832	650
Allowance Utilization and Other	(2,153)	(8,227)	(471)
Exchange Rate Changes and Other Adjustments	(56)	(43)	(60)
Valuation Allowance, Ending Balance	$ 21,511	$ 13,834	$ 7,520

Income Taxes - Net Deferred Bal

Income Taxes - Net Deferred Balances (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Taxes on Income and Uncertain Tax Positions [Abstract]
Deferred tax assets	$ 16,566	$ 14,745
Deferred tax liabilities	176,197	196,349
Deferred tax liabilities,net	$ 192,763	$ 211,094

Income Taxes - Rate Reconciliat

Income Taxes - Rate Reconciliation (Details) - USD ($)	12 Months Ended
Income Taxes - Rate Reconciliation (Details) - USD ($)	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation [Abstract]
Income tax provision at the federal statutory tax rate	$ 5,699,000	$ 6,070,000	$ 17,458,000
Unremitted Earnings	2,308,000	4,383,000	7,857,000
Transition Tax	(1,059,000)	(416,000)	(3,118,000)
Global intangible low taxed income	5,140,000	574,000	2,095,000
Pension Settlement	(2,247,000)	0	0
Foreign derived intangible income	(7,339,000)	(1,699,000)	(1,034,000)
Non-deductible acquisition expenses	131,000	1,743,000	1,019,000
Withholding taxes	7,809,000	8,621,000	1,161,000
Share-based compensation	335,000	(540,000)	259,000
Differences in tax rates on foreign earnings and remittances	596,000	920,000	1,081,000
Excess Foreign Tax Credit Utilization	(4,699,000)	(3,787,000)	(1,911,000)
Research and development activities credit utilization	(475,000)	(306,000)	(230,000)
Uncertain tax positions	1,990,000	899,000	(79,000)
State income tax provisions, net	(2,245,000)	(117,000)	196,000
Non-deductible meals and entertainment	290,000	318,000	415,000
Intercompany transfer of intellectual property	(4,384,000)	(5,318,000)	0
Miscellaneous items, net	(2,530,000)	(495,000)	(119,000)
Income Tax Expense (Benefit), Total	$ (5,296,000)	$ 2,084,000	$ 25,050,000

Income Taxes - Narrative (Detai

Income Taxes - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
Income Taxes - Narrative (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Deferred Tax Assets, Net	$ 86,885	$ 102,002
Defered Tax Liabilties, Net	263,082	298,351
Operating Loss Carryforwards, Valuation Allowance	10,200	8,200
Tax Cuts and Jobs Act, Transition Tax for Accumulated Foreign Earnings, Liability	15,500
Tax Cuts And Jobs Act Of 2017 Transition Tax For Accumulated Foreign Earnings Liability Installments Paid	7,000
Tax Cuts And Jobs Act Of 2017 Transition Tax For Accumulated Foreign Earnings Liability Remaining Installments	8,500
Tax Cuts And Jobs Act Of 2017 Accounting Earnings Of Foreign Subsidiary	322,600
Deferred Tax Assets, Operating Loss Carryforwards, State and Local	11,300
Deferred Tax Assets, Partial Valuation Allowance, Net Expected Future Benefit	3,300
Operating Loss Carryforwards, State, Partial Valuation Allowance	8,000
Operating Loss Carryforwards, Foreign, Partial Valuation Allowance	1,700
Deferred Tax Assets Operating Loss Carryforwards State And Local Based On Reversal Of Deferred Tax Liabilities	$ 3,300
Deferred Tax Assets Operating Loss Carryforwards Foreign Expiration Period	10 years
Deferred Tax Assets, Operating Loss Carryforwards, Foreign	$ 5,400
Deferred Tax Assets, Tax Credit Carryforwards, Foreign	24,873	34,384
Deferred Tax Assets Tax Credit Carryforwards Foreign Expected To Expire	24,900	33,700
Deferred Tax Assets, Acquired Disallowed Interest	15,700
Unrecognized Tax Benefits	22,152	19,097	$ 7,050	$ 6,761
Unrecognized Tax Benefits, Income Tax Penalties Accrued	3,900	3,100
Unrecognized Tax Benefits, Interest on Income Taxes Accrued	3,000	2,300
Unrecognized Tax Benefits, Interest on Income Taxes Expense	600	200	100
Unrecognized Tax Benefits, Reductions Resulting from Lapse of Applicable Statute of Limitations	3,659	1,029	1,292
Unrecognized Tax Benefits If Recognized	14,700	13,300	2,200
Indemnification assets	7,615	4,006
Valuation Allowance Amount State Deferred tax asset	1,000
Valuation allowance amount Other Foreign Deferred Tax Asset	600
Income Tax Reconciliation Change In Enacted Tax Rate	(1,059)	$ (416)	$ (3,118)
Combination And Norman Hay [Member]
Deferred Tax Assets, Tax Credit Carryforwards, Foreign	41,800
Deferred Tax Assets, Acquired Disallowed Interest	14,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities	222,800
Korea Houghton Coporation [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities	$ 7,900
Business Acquisition, Percentage of Voting Interests Acquired		50.00%
Expiration In Year Five [Member]
Deferred Tax Assets Operating Loss Carryforwards State And Local Expiration Period	5 years
Expiration In Twenty Years [Member]
Deferred Tax Assets Operating Loss Carryforwards State And Local Expiration Period	20 years
Foreign Tax Authority [Member]
Defered Tax Liabilties, Net	$ 5,900

Income Taxes - Uncertain Tax Po

Income Taxes - Uncertain Tax Positions - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Uncertain Tax Positions [Abstract]
Unrecognized Tax Benefits	$ 22,152	$ 19,097	$ 7,050	$ 6,761
Accrued Interest	3,000	2,300
Accrued Penalties	3,900	3,100
Unrecognized Tax Benefits, Interest on Income Taxes Expense	600	200	100
Unrecognized Tax Benefits Tax Penalties Income	100	200	200
Unrecognized Tax Benefits, Reductions Resulting from Lapse of Applicable Statute of Limitations	3,659	1,029	$ 1,292
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Estimated Range of Change, Upper Bound	3,900
Income Tax Examination [Line Items]
Indemnification assets	$ 7,615	$ 4,006
Internal Revenue Service (IRS) [Member]
Income Tax Examination [Line Items]
Income Tax Examination, Year under Examination	2017
Foreign Tax Authority [Member] \| The Netherlands [Member]
Income Tax Examination [Line Items]
Income Tax Examination, Year under Examination	2015
Foreign Tax Authority [Member] \| United Kingdom [Member]
Income Tax Examination [Line Items]
Income Tax Examination, Year under Examination	2016
Foreign Tax Authority [Member] \| Brazil [Member]
Income Tax Examination [Line Items]
Income Tax Examination, Year under Examination	2011
Foreign Tax Authority [Member] \| Spain [Member]
Income Tax Examination [Line Items]
Income Tax Examination, Year under Examination	2016
Foreign Tax Authority [Member] \| China [Member]
Income Tax Examination [Line Items]
Income Tax Examination, Year under Examination	2015
Foreign Tax Authority [Member] \| Italy [Member]
Income Tax Examination [Line Items]
Income Tax Examination, Year under Examination	2006
Unrecognized Tax Benefits Reserve	$ 900
Foreign Tax Authority [Member] \| Italy [Member] \| Houghton [Member]
Income Tax Examination [Line Items]
Unrecognized Tax Benefits Reserve	5,800
Indemnification assets	$ 5,800
Foreign Tax Authority [Member] \| Mexico [Member]
Income Tax Examination [Line Items]
Income Tax Examination, Year under Examination	2015
Foreign Tax Authority [Member] \| India [Member]
Income Tax Examination [Line Items]
Income Tax Examination, Year under Examination	2018
Foreign Tax Authority [Member] \| Canada [Member]
Income Tax Examination [Line Items]
Income Tax Examination, Year under Examination	2017
Foreign Tax Authority [Member] \| Germany [Member]
Income Tax Examination [Line Items]
Income Tax Examination, Year under Examination	2016
Foreign Tax Authority [Member] \| Germany [Member] \| Houghton [Member]
Income Tax Examination [Line Items]
Unrecognized Tax Benefits Reserve	$ 900
Indemnification assets	$ 800
State and Local Jurisdiction [Member]
Income Tax Examination [Line Items]
Income Tax Examination, Year under Examination	2011

Income Taxes - Uncertain Tax _2

Income Taxes - Uncertain Tax Positions - Tabular Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Unrecognized Tax Benefits, Beginning Balance	$ 19,097	$ 7,050	$ 6,761
Unrecognized Tax Benefits, Increases Resulting from Prior Period Tax Positions	2,025
Decrease in unrecognized tax benefits taken in prior periods		(28)	(183)
Increase in Unrecognized Tax Benefits Taken in Current Period	3,095	1,935	2,023
Decrease in Unrecognized Tax Benefits Due to Lapse of Statute of Limitations	(3,659)	(1,029)	(1,292)
Increase in unrecognized tax benefits due to acquisition	597	11,301	0
(Decrease) Due to Foreign Exchange Rates		(132)	(259)
Increase Due to Foreign Exchange Rates	997
Unrecognized Tax Benefits, Ending Balance	$ 22,152	$ 19,097	$ 7,050

Earnings Per Share - Basic (Det

Earnings Per Share - Basic (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Earnings Per Share [Abstract]
Net income (loss) attributable to Quaker Chemical Corporation	$ 39,658	$ 31,622	$ 59,473
Less: Income Allocated to Participating Securities	(148)	(90)	(253)
Net income available to common shareholders	$ 39,510	$ 31,532	$ 59,220
Basic weighted average common shares outstanding	17,719,792	15,126,928	13,268,047
Basic earnings per common share	$ 2.23	$ 2.08	$ 4.46

Earnings Per Share - Diluted (D

Earnings Per Share - Diluted (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Earnings Per Share [Abstract]
Net income (loss) attributable to Quaker Chemical Corporation	$ 39,658	$ 31,622	$ 59,473
Less: income allocated to participating securities	(148)	(90)	(252)
Net income available to common shareholders	$ 39,510	$ 31,532	$ 59,221
Basic weighted average common shares outstanding	17,719,792	15,126,928	13,268,047
Effect of Dilutive Securities	31,087	36,243	36,685
Diluted weighted average common shares outstanding	17,750,879	15,163,171	13,304,732
Diluted earnings per common share	$ 2.22	$ 2.08	$ 4.45

Earnings Per Share - Antidiluti

Earnings Per Share - Antidilutive Shares (Details) - shares	12 Months Ended
Earnings Per Share - Antidilutive Shares (Details) - shares	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Business Acquisition [Line Items]
Antidilutive Shares	945	108	1,808
Combination [Member]
Business Acquisition [Line Items]
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares		4,300,000
Business Acquisition, Equity Interest Issued or Issuable, Percentage Of Company in Shares Issued		24.50%

Restricted Cash (Details)

Restricted Cash (Details) - USD ($) $ in Thousands	12 Months Ended
Restricted Cash (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents [Abstract]
Cash and cash equivalents	$ 181,833	$ 123,524	$ 104,147	$ 89,879
Restricted cash included in other current assets	62	353	0	0
Restricted cash included in other assets	0	19,678	20,278	21,171
Cash cash equivalents restricted cash and restricted cash equivalents	$ 181,895	143,555	$ 124,425	$ 111,050
Loss Contingency, Settlement Agreement, Terms	Prior to December 2020, the Company had restricted cash recorded in other assets related to proceeds from an inactive subsidiary of the Company which previously executed separate settlement and release agreements with two of its insurance carriers for an original total value of $35.0 million.
Proceeds Of Settlement And Release Agreements	$ 18,100
Payments Of Settlement and Release Agreements	1,000	800
Interest Income Other	$ 100	$ 200

Accounts Receivable - Narrative

Accounts Receivable - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Accounts Receivable and Allowance for Doubtful Accounts [Abstract]
Accounts Receivable Gross Current	$ 386,100	$ 387,700
Business Combination, Acquired Receivables, Estimated Uncollectible		5,000
Accounts, Notes, Loans and Financing Receivable [Line Items]
Provision for Doubtful Accounts	$ 3,582	$ 1,925	$ 493
Reclassification Of Allowance For Doubtful Accounts, Other Assets			$ 300

Allowance For Doubtful Accounts

Allowance For Doubtful Accounts - Rollforward (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Valuation and Qualifying Accounts Disclosure [Roll forward]
Balance at Beginning of Period	$ 11,716	$ 5,187	$ 5,457
Charged to Costs and Expenses	3,582	1,925	493
Write-Offs Charged to Allowance	(2,187)	(322)	(295)
Exchange Rate Changes and Other Adjustments	34	4,926	(468)
Balance at End of Period	$ 13,145	$ 11,716	$ 5,187

Inventory (Details)

Inventory (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Inventories [Abstract]
Raw Materials And Supplies	$ 86,148	$ 82,058
Work-In-Process and Finished Goods	101,616	92,892
Inventories	$ 187,764	$ 174,950

Property, Plant and Equipment_2

Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Property Plant And Equipment Gross Abstract
Land	$ 33,009	$ 34,686
Building and Improvements	135,595	130,462
Machinery and Equipment	246,242	225,636
Construction In Progress	8,407	8,050
Property, Plant and Equipment, Gross, Total	423,253	398,834
Less: Accumulated Depreciation	(219,370)	(185,365)
Property, Plant and Equipment, Net, Total	$ 203,883	$ 213,469

Property, Plant and Equipment -

Property, Plant and Equipment - Narrative (Details) $ in Millions	12 Months Ended
	Dec. 31, 2020USD ($)
Property, Plant and Equipment [Abstract]
Capital Leased Assets Gross	$ 0.4
Long Lived Assets Held For Sale Description	In connection with the plans for closure of certain facilities, certain buildings and land with an aggregate book value of approximately $10.0 million continue to be held-for-sale as of December 31, 2020 and are recorded in other current assets on the Company’s Consolidated Balance Sheet.
Real Estate Held for sale	$ 10

Goodwill Assets (Details)

Goodwill Assets (Details) - USD ($) $ in Thousands	12 Months Ended
Goodwill Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Goodwill Roll Forward
Goodwill, Beginning Balance	$ 607,205	$ 83,333
Goodwill Additions	3,345	524,297
Goodwill, Translation Adjustments	20,662	(425)
Goodwill, Ending Balance	631,212	607,205
Global Specialty Businesses [Member]
Goodwill Roll Forward
Goodwill Period Increase Decrease	500
Americas [Member]
Goodwill Roll Forward
Goodwill Period Increase Decrease	2,600
EMEA [Member]
Goodwill Roll Forward
Goodwill Period Increase Decrease	1,400
Asia Pacific [Member]
Goodwill Roll Forward
Goodwill Period Increase Decrease	8,000
Operating Segments [Member] \| Global Specialty Businesses [Member]
Goodwill Roll Forward
Goodwill, Beginning Balance	116,075	24,297
Goodwill Additions	1,329	91,545
Goodwill, Translation Adjustments	2,314	233
Goodwill, Ending Balance	119,718	116,075
Operating Segments [Member] \| Americas [Member]
Goodwill Roll Forward
Goodwill, Beginning Balance	216,385	28,464
Goodwill Additions	1,485	188,494
Goodwill, Translation Adjustments	(4,628)	(573)
Goodwill, Ending Balance	213,242	216,385
Operating Segments [Member] \| EMEA [Member]
Goodwill Roll Forward
Goodwill, Beginning Balance	133,018	17,423
Goodwill Additions	531	114,167
Goodwill, Translation Adjustments	6,613	1,428
Goodwill, Ending Balance	140,162	133,018
Operating Segments [Member] \| Asia Pacific [Member]
Goodwill Roll Forward
Goodwill, Beginning Balance	141,727	13,149
Goodwill Additions	0	130,091
Goodwill, Translation Adjustments	16,363	(1,513)
Goodwill, Ending Balance	$ 158,090	$ 141,727

Intangible Assets (Details)

Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Finite Lived Intangible Assets Accumulated Amortization	$ 136,113	$ 77,007
Total	1,012,371	955,672
Customer lists and rights to sell [Member]
Finite-Lived Intangible Assets [Line Items]
Finite Lived Intangible Assets Accumulated Amortization	99,806	49,932
Total	839,551	792,362
Trademarks Formulations And Product Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Finite Lived Intangible Assets Accumulated Amortization	30,483	21,299
Total	166,448	157,049
Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Finite Lived Intangible Assets Accumulated Amortization	5,824	5,776
Total	$ 6,372	$ 6,261

Intangible Assets - Amortizatio

Intangible Assets - Amortization (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Goodwill And Intangible Assets Disclosure [Abstract]
Amortization	$ 55.9	$ 26.7	$ 7.3

Intangible Assets - Future Amor

Intangible Assets - Future Amortization (Details) $ in Thousands	Dec. 31, 2020USD ($)
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]
For the Year ended December 31, 2021	$ 58,752
For the Year ended December 31, 2022	58,590
For the Year ended December 31, 2023	58,361
For the Year ended December 31, 2024	57,935
For the Year ended December 31, 2025	$ 57,263

Intangible Assets - Indefinite

Intangible Assets - Indefinite Lived (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Indefinite Lived Intangible Assets Excluding Goodwill [Abstract]
Indefinite Lived Trademarks	$ 204,000	$ 243,100
Indefinite lived intangible assets	205,100
Indefinite-lived intangible asset impairment	$ 38,000	$ 0	$ 0

Investment in Associated Comp_2

Investment in Associated Companies - Narrative (Details) - USD ($)	Dec. 31, 2020	Dec. 31, 2019
Schedule Of Equity Method Investments [Line Items]
Equity Method Investments	$ 95,785,000	$ 93,822,000
Nippon Quaker (Japan) [Member] \| Asia Pacific [Member]
Schedule Of Equity Method Investments [Line Items]
Equity Method Investment Ownership Percentage	50.00%
Equity Method Investments	$ 7,800,000
Kelko (Venezuela) [Member]
Schedule Of Equity Method Investments [Line Items]
Equity Method Investment Ownership Percentage		50.00%
Equity Method Investments		$ 0
Kelko (Venezuela) [Member] \| Americas [Member]
Schedule Of Equity Method Investments [Line Items]
Equity Method Investment Ownership Percentage	50.00%
Equity Method Investments	$ 0
Kelko (Panama) [Member] \| Americas [Member]
Schedule Of Equity Method Investments [Line Items]
Equity Method Investment Ownership Percentage	50.00%
Equity Method Investments	$ 300,000
Primex (Barbados) [Member] \| Americas [Member]
Schedule Of Equity Method Investments [Line Items]
Equity Method Investment Ownership Percentage	32.00%
Equity Method Investments	$ 19,400,000
Houghton Korea [Member] \| Asia Pacific [Member]
Schedule Of Equity Method Investments [Line Items]
Equity Method Investment Ownership Percentage	50.00%
Equity Method Investments	$ 68,300,000

Investments in Associated Com_2

Investments in Associated Companies - Summarized Financial Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Equity in net income of associated companies	$ 7,352	$ 5,064	$ 1,763
Korea Houghton Coporation [Member]
Equity in net income of associated companies	5,241	2,337	0
Equity Method Investee Name Nippon Quaker Japan [Member]
Equity in net income of associated companies	853	850	713
Equity Method Investee Name Kelko Panama [Member]
Equity in net income of associated companies	107	55	222
Equity Method Investee Name Kelko Venezuela [Member]
Equity in net income of associated companies	0	0	(138)
Equity Method Investee Name Primex [Member]
Equity in net income of associated companies	$ 1,151	$ 1,822	$ 966

Other Assets (Details)

Other Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Other Assets [Abstract]
Uncertain Tax Positions	$ 7,209	$ 4,993
Pension assets	6,748	0
Debt issuance costs	5,919	7,571
Indemnification assets	7,615	4,006
Supplemental Retirement Income Program	1,961	1,782
Restricted insurance settlement	0	19,678
Other	2,344	2,403
Total other assets	$ 31,796	$ 40,433

Other Current Liabilities (Deta

Other Current Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Other Accrued Liabilities [Abstract]
Non-income taxes	$ 26,080	$ 21,176
Current Income Taxes Payable	13,124	7,503
Professional Fees, legal, and acquisition-related accruals	11,437	17,103
Short-term lease liabilities	10,901	11,177
Selling Expenses and freight accruals	10,475,000	11,350
Customer advances and sales return reserves	6,380	5,554
Other	13,710	9,742
Total other accrued liabilities	$ 92,107	$ 83,605

Debt - Table (Details)

Debt - Table (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Less: debt issuance costs	$ (11,099)	$ (14,196)
Less: short-term and current portion of long-term debts	(38,967)	(38,332)
Total long-term debt	$ 849,068	$ 882,437
Revolver [Member]
Debt Instrument [Line Items]
Debt Instrument Interest Rate Stated Percentage	165.00%	320.00%
U.S. Term Loan [Member]
Debt Instrument [Line Items]
Debt Instrument Interest Rate Stated Percentage	165.00%	3.20%
EURO Term Loan [Member]
Debt Instrument [Line Items]
Debt Instrument Interest Rate Stated Percentage	150.00%	1.50%
Industrial development bonds [Member]
Debt Instrument [Line Items]
Debt Instrument Interest Rate Stated Percentage	526.00%	526.00%
Total debt	$ 10,000	$ 10,000

Debt - Maturity Schedules (Deta

Debt - Maturity Schedules (Details) $ in Thousands	Dec. 31, 2020USD ($)
Long Term Debt By Maturity Abstract
2021	$ 38,795
2022	57,850
2023	76,943
2024	715,227
2025	$ 231

Debt - Debt related expenses in

Debt - Debt related expenses included within Interest expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Debt related expenses included within Interest expense:
Interest Expense, Debt	$ 23,552	$ 16,788	$ 6,158
Amortization of debt issuance costs	4,749	1,979	70
Total	$ 28,301	$ 18,767	$ 6,228

Debt - Narrative (Details)

Debt - Narrative (Details) - USD ($) $ in Thousands	Aug. 01, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Credit facilities		$ 899,134	$ 934,965
Financing-related debt issuance costs		0	23,747	$ 0
Letters Of Credit Outstanding Amount		10,000
Debt Instrument, Unused Borrowing Capacity, Amount		40,000
Debt Issuance Cost Capitalized to Term loans and Long Term Debt		11,099	14,196
Deferred Finance Costs Noncurrent Gross		$ 23,700
Maximum [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Commitment Fee Percentage		0.30%
Minimum [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Commitment Fee Percentage		0.20%
New Credit facility [Member]
Debt Instrument [Line Items]
Credit facilities		$ 160,000	171,169
Financing-related debt issuance costs	$ 6,300
Percentage of term loan principal amortization year one		5.00%
Percentage of term loan principal amortization year two		5.00%
Percentage of term loan principal amortization year three		7.50%
Percentage of term loan principal amortization year four and five		10.00%
Debt Instrument, Interest Rate During Period		2.20%
Payments of long-term debt		$ 37,600
Debt, Weighted Average Interest Rate		1.60%
Line of Credit Facility, Remaining Borrowing Capacity		$ 300,000
Debt Instrument, Maturity Date		Aug. 1, 2024
Line of Credit Facility, Covenant Compliance		As of December 31, 2020 and December 31, 2019, the Company was in compliance with all of the Credit Facility covenants.
Line of Credit Facility, Covenant Terms		The Company’s initial consolidated net debt to consolidated adjusted EBITDA ratio could not exceed 4.25 to 1, with step downs in the permitted ratio over the term of the Credit Facility. As of December 31, 2020, the consolidated net debt to adjusted EBITDA may not exceed 4.00 to 1. The Company’s consolidated adjusted EBITDA to interest expense ratio cannot be less than 3.0 to 1 over the term of the agreement. The Credit Facility also prohibits the payment of cash dividends if the Company is in default or if the amount of the dividend paid annually exceeds the greater of $50.0 million and 20% of consolidated adjusted EBITDA unless the ratio of consolidated net debt to consolidated adjusted EBITDA is less than 2.0 to 1, in which case there is no such limitation on amount.
New Credit facility [Member] \| Letter of Credit [Member]
Debt Instrument [Line Items]
Letters Of Credit Outstanding Amount		$ 6,000
U.S. Term Loan [Member]
Debt Instrument [Line Items]
Credit facilities	600,000	570,000	600,000
Derivative Liability Notional Amount		$ 170,000
Derivative Fixed Interest Rate		3.10%
Derivative, Basis Spread on Variable Rate		1.64%
Deferred Finance Costs Noncurrent Gross		$ 15,500
Line of Credit Facility, Current Borrowing Capacity		600,000
EURO Term Loan [Member]
Debt Instrument [Line Items]
Credit facilities	150,000	157,062	151,188
Line of Credit Facility, Current Borrowing Capacity		150,000
The Revolver [Member]
Debt Instrument [Line Items]
Credit facilities	$ 400,000
Deferred Finance Costs Noncurrent Gross		8,300
Line of Credit Facility, Current Borrowing Capacity		400,000
The Revolver [Member] \| Letter of Credit [Member]
Debt Instrument [Line Items]
Debt Instrument, Unused Borrowing Capacity, Amount		$ 234,000
Industrial Development Bond Due 2028 [Member]
Debt Instrument [Line Items]
Derivative Fixed Interest Rate				5.60%
Debt Instrument Maturity Date Description		2028		2018
Industrial Development Revenue Bond		$ 10,000		$ 5,000
Bank lines of credit and other debt obligations [Member]
Debt Instrument [Line Items]
Credit facilities		2,072	2,608
Debt Issuance Costs, Current, Net		$ 5,900	$ 7,600

Pension and Other Postretiremen

Pension and Other Postretirement Benefits - Funded Status Rollforward (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Employee Contributions	$ 73	$ 73
Benefits Paid	(11,225)	(9,866)
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Plan Assets at Beginning of Year	315,649	144,241
Actual Return on Plan Assets	31,126	24,121
Employer Contributions	9,214	6,310
Employee Contributions	73	73
Plan Settlements	(55,810)	(1,087)
Benefits Paid	(11,225)	(9,866)
Plan Expenses and Premiums Paid	(633)	(629)
Transfer In of Business Acquisition	0	146,987
Translation Difference	13,876	5,499
Fair Value of Plan Assets at End of Year	302,270	315,649	$ 144,241
Defined Benefit Plan, Amounts Recognized in Balance Sheet [Abstract]
Non-current Asset	6,748	0
Current Liabilities	(1,466)	(3,405)
Non-current Liabilities	(63,890)	(56,828)
Pension Plans, Defined Benefit [Member]
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit Obligation at Beginning of Year	371,616	170,050
Service Cost	4,831	3,941	3,809
Interest Cost	6,339	6,359	4,101
Employee Contributions	73	73
Effect of Plan Amendments	50	30
Plan Settlements	(55,810)	(1,087)
Defined Benefit Plan, Curtailments	(2,324)	0
Benefits Paid	(11,225)	(9,866)
Plan Expenses and Premiums Paid	(135)	(129)
Transfer In of Business Acquisition	0	172,072
Actuarial (gain) Loss	29,248	24,478
Translation Difference and Other	14,981	5,695
Benefit Obligation at End of Year	357,644	371,616	170,050
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Plan Assets at Beginning of Year	315,649
Employee Contributions	73	73
Benefits Paid	(11,225)	(9,866)
Fair Value of Plan Assets at End of Year	91,555	315,649
Defined Benefit Plan, Funded Status of Plan	(55,374)	(55,967)
Defined Benefit Plan, Amounts Recognized in Balance Sheet [Abstract]
Non-current Asset	6,748	0
Current Liabilities	(1,180)	(2,979)
Non-current Liabilities	(60,942)	(52,988)
Net Amount Recognized	(55,374)	(55,967)
Amounts Not Yet Reflected in Net Periodic Benefit Costs and Included in Accumulated Other Comprehensive Income (Loss) [Abstract]
Prior Service credit (cost)	24	1,271
Accumulated Loss	(27,508)	(69,376)
Accumulated Other Comprehensive Loss ("AOCI")	(27,484)	(68,105)
Cumulative Employer Contributions In Excess Of (or Below) Net Periodic Benefit Cost	(27,890)	12,138
Net Amount Recognized	(55,374)	(55,967)
Domestic plan [Member]
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Employee Contributions	0	0
Benefits Paid	(6,138)	(6,034)
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Plan Assets at Beginning of Year	120,550	49,415
Actual Return on Plan Assets	10,759	10,663
Employer Contributions	2,302	1,087
Employee Contributions	0	0
Plan Settlements	(53,494)	0
Benefits Paid	(6,138)	(6,034)
Plan Expenses and Premiums Paid	(498)	(500)
Transfer In of Business Acquisition	0	65,919
Translation Difference	0	0
Fair Value of Plan Assets at End of Year	73,481	120,550	49,415
Domestic plan [Member] \| Pension Plans, Defined Benefit [Member]
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit Obligation at Beginning of Year	153,723	58,734
Service Cost	491	434	383
Interest Cost	2,923	3,313	1,847
Employee Contributions	0	0
Effect of Plan Amendments	50	0
Plan Settlements	(53,494)	0
Defined Benefit Plan, Curtailments	0	0
Benefits Paid	(6,138)	(6,034)
Plan Expenses and Premiums Paid	0	0
Transfer In of Business Acquisition	0	86,414
Actuarial (gain) Loss	12,414	10,862
Translation Difference and Other	0	0
Benefit Obligation at End of Year	109,969	153,723	58,734
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Plan Assets at Beginning of Year	120,550
Employee Contributions	0	0
Benefits Paid	(6,138)	(6,034)
Fair Value of Plan Assets at End of Year	73,481	120,550
Defined Benefit Plan, Funded Status of Plan	(36,488)	(33,173)
Defined Benefit Plan, Amounts Recognized in Balance Sheet [Abstract]
Non-current Asset	0	0
Current Liabilities	(612)	(2,620)
Non-current Liabilities	(35,876)	(30,553)
Net Amount Recognized	(36,488)	(33,173)
Amounts Not Yet Reflected in Net Periodic Benefit Costs and Included in Accumulated Other Comprehensive Income (Loss) [Abstract]
Prior Service credit (cost)	50	0
Accumulated Loss	(5,532)	(46,560)
Accumulated Other Comprehensive Loss ("AOCI")	(5,482)	(46,560)
Cumulative Employer Contributions In Excess Of (or Below) Net Periodic Benefit Cost	(31,006)	13,387
Net Amount Recognized	(36,488)	(33,173)
Domestic plan [Member] \| Other Postretirement Benefit Plans Defined Benefit [Member]
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit Obligation at Beginning of Year	4,266	4,106
Service Cost	5	6	7
Interest Cost	77	143	130
Employee Contributions	0	0
Effect of Plan Amendments	0	0
Plan Settlements	0	0
Defined Benefit Plan, Curtailments		0
Benefits Paid	(250)	(384)
Plan Expenses and Premiums Paid	0	0
Transfer In of Business Acquisition	0	0
Actuarial (gain) Loss	(864)	395
Translation Difference and Other	0	0
Benefit Obligation at End of Year	3,234	4,266	4,106
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Employee Contributions	0	0
Benefits Paid	(250)	(384)
Defined Benefit Plan, Funded Status of Plan	(3,234)	(4,266)
Defined Benefit Plan, Amounts Recognized in Balance Sheet [Abstract]
Non-current Asset	0	0
Current Liabilities	(286)	(426)
Non-current Liabilities	(2,948)	(3,840)
Net Amount Recognized	(3,234)	(4,266)
Amounts Not Yet Reflected in Net Periodic Benefit Costs and Included in Accumulated Other Comprehensive Income (Loss) [Abstract]
Prior Service credit (cost)	0	0
Accumulated Loss	124	(734)
Accumulated Other Comprehensive Loss ("AOCI")	124	(734)
Cumulative Employer Contributions In Excess Of (or Below) Net Periodic Benefit Cost	(3,358)	(3,532)
Net Amount Recognized	(3,234)	(4,266)
Foreign [Member]
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Employee Contributions	73	73
Benefits Paid	(5,087)	(3,832)
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Plan Assets at Beginning of Year	195,099	94,826
Actual Return on Plan Assets	20,367	13,458
Employer Contributions	6,912	5,223
Employee Contributions	73	73
Plan Settlements	(2,316)
Benefits Paid	(5,087)	(3,832)
Plan Expenses and Premiums Paid	(135)	(129)
Transfer In of Business Acquisition	0	81,068
Translation Difference	13,876	5,499
Fair Value of Plan Assets at End of Year	228,789	195,099	94,826
Foreign [Member] \| Pension Plans, Defined Benefit [Member]
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit Obligation at Beginning of Year	217,893	111,316
Service Cost	4,340	3,507	3,426
Interest Cost	3,416	3,046	2,254
Employee Contributions	73	73
Effect of Plan Amendments	0	30
Plan Settlements	(2,316)	(1,087)
Defined Benefit Plan, Curtailments	(2,324)	0
Benefits Paid	(5,087)	(3,832)
Plan Expenses and Premiums Paid	(135)	(129)
Transfer In of Business Acquisition	0	85,658
Actuarial (gain) Loss	16,834	13,616
Translation Difference and Other	14,981	5,695
Benefit Obligation at End of Year	247,675	217,893	111,316
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Plan Assets at Beginning of Year	195,099
Employee Contributions	73	73
Benefits Paid	(5,087)	(3,832)
Fair Value of Plan Assets at End of Year	18,074	195,099
Defined Benefit Plan, Funded Status of Plan	(18,886)	(22,794)
Defined Benefit Plan, Amounts Recognized in Balance Sheet [Abstract]
Non-current Asset	6,748	0
Current Liabilities	(568)	(359)
Non-current Liabilities	(25,066)	(22,435)
Net Amount Recognized	(18,886)	(22,794)
Amounts Not Yet Reflected in Net Periodic Benefit Costs and Included in Accumulated Other Comprehensive Income (Loss) [Abstract]
Prior Service credit (cost)	(26)	1,271
Accumulated Loss	(21,976)	(22,816)
Accumulated Other Comprehensive Loss ("AOCI")	(22,002)	(21,545)
Cumulative Employer Contributions In Excess Of (or Below) Net Periodic Benefit Cost	3,116	(1,249)
Net Amount Recognized	(18,886)	(22,794)
Foreign [Member] \| Other Postretirement Benefit Plans Defined Benefit [Member]
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Employee Contributions	0	0
Defined Benefit Plan, Curtailments	0
Benefits Paid	(250)	(384)
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair Value of Plan Assets at Beginning of Year	0	0
Actual Return on Plan Assets	0	0
Employer Contributions	250	384
Employee Contributions	0	0
Plan Settlements	0	0
Benefits Paid	(250)	(384)
Plan Expenses and Premiums Paid	0	0
Transfer In of Business Acquisition	0	0
Translation Difference	0	0
Fair Value of Plan Assets at End of Year	$ 0	$ 0	$ 0

Pension and Other Postretirem_2

Pension and Other Postretirement Benefits - Information About Accumulated and Projected Benefit Obligations In Excess of Plan Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets [Abstract]
Fair Value of Plan Assets	$ 302,270	$ 315,649	$ 144,241
Defined Benefit Plan, Plans with Benefit Obligations in Excess of Plan Assets [Abstract]
Fair Value of Plan Assets	302,270	315,649	144,241
Pension Plans, Defined Benefit [Member]
Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets [Abstract]
Projected Benefit Obligation	357,644	371,616	170,050
Defined Benefit Plan Pension Plan With Projected Benefit Obligation In Excess Of Plan Assets Projected Benefit Obligation	142,342	371,616
Accumulated Benefit Obligation	140,432	365,990
Fair Value of Plan Assets	91,555	315,649
Defined Benefit Plan, Plans with Benefit Obligations in Excess of Plan Assets [Abstract]
Defined Benefit Plan Pension Plan With Projected Benefit Obligation In Excess Of Plan Assets Projected Benefit Obligation	142,342	371,616
Projected Benefit Obligation	357,644	371,616	170,050
Fair Value of Plan Assets	91,555	315,649
Domestic plan [Member]
Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets [Abstract]
Fair Value of Plan Assets	73,481	120,550	49,415
Defined Benefit Plan, Plans with Benefit Obligations in Excess of Plan Assets [Abstract]
Fair Value of Plan Assets	73,481	120,550	49,415
Domestic plan [Member] \| Pension Plans, Defined Benefit [Member]
Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets [Abstract]
Projected Benefit Obligation	109,969	153,723	58,734
Defined Benefit Plan Pension Plan With Projected Benefit Obligation In Excess Of Plan Assets Projected Benefit Obligation	109,969	153,723
Accumulated Benefit Obligation	109,540	152,930
Fair Value of Plan Assets	73,481	120,550
Defined Benefit Plan, Plans with Benefit Obligations in Excess of Plan Assets [Abstract]
Defined Benefit Plan Pension Plan With Projected Benefit Obligation In Excess Of Plan Assets Projected Benefit Obligation	109,969	153,723
Projected Benefit Obligation	109,969	153,723	58,734
Fair Value of Plan Assets	73,481	120,550
Foreign [Member]
Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets [Abstract]
Fair Value of Plan Assets	228,789	195,099	94,826
Defined Benefit Plan, Plans with Benefit Obligations in Excess of Plan Assets [Abstract]
Fair Value of Plan Assets	228,789	195,099	94,826
Foreign [Member] \| Pension Plans, Defined Benefit [Member]
Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets [Abstract]
Projected Benefit Obligation	247,675	217,893	111,316
Defined Benefit Plan Pension Plan With Projected Benefit Obligation In Excess Of Plan Assets Projected Benefit Obligation	32,373	217,893
Accumulated Benefit Obligation	30,892	213,060
Fair Value of Plan Assets	18,074	195,099
Defined Benefit Plan, Plans with Benefit Obligations in Excess of Plan Assets [Abstract]
Defined Benefit Plan Pension Plan With Projected Benefit Obligation In Excess Of Plan Assets Projected Benefit Obligation	32,373	217,893
Projected Benefit Obligation	247,675	217,893	$ 111,316
Fair Value of Plan Assets	$ 18,074	$ 195,099

Pension and Other Postretirem_3

Pension and Other Postretirement Benefits - Net Periodic Benefit Cost and Changes in Other Comprehensive Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss) [Abstract]
Net Loss (Gain) Arising During The Period			$ 210
Recognition of amortization in net periodic benefit cost Prior service credit (cost)			116
Actuarial Loss			(3,159)
Effect of exchange rates on amounts Included in AOCI			(890)
Total Recognized in Other Comprehensive (Income) Loss			(4,143)
Total Recognized In Net Periodic Benefit Cost And Other Comprehensive Loss Or (Income)			1,779
Pension Plans, Defined Benefit [Member]
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Service Cost	$ 4,831	$ 3,941	3,809
Interest Cost	6,339	6,359	4,101
Expected Return on Plan Assets	(9,072)	(6,895)	(5,031)
Settlement Loss	22,579	258	2
Curtailment Charge	(1,155)	0
Actuarial Loss Amortization	2,996	3,105	(3,157)
Prior Service (Credit) Cost Amortization	(167)	(165)	(116)
Net Periodic Benefit Cost	26,351	6,603	5,922
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss) [Abstract]
Net Loss (Gain) Arising During The Period	(58)	7,752
Recognition of amortization in net periodic benefit cost Prior service credit (cost)	1,375	196
Actuarial Loss	3,209	(3,362)
Other comprehensive income loss plan settlement	(22,706)	0
Other Comprehensive Income Loss Plan Curtailments	(3)	0
Effect of exchange rates on amounts Included in AOCI	1,535	(61)
Total Recognized in Other Comprehensive (Income) Loss	(16,648)	4,525
Total Recognized In Net Periodic Benefit Cost And Other Comprehensive Loss Or (Income)	9,703	11,128
Other Postretirement Benefit Plans Defined Benefit [Member]
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss) [Abstract]
Total Recognized in Other Comprehensive (Income) Loss	(859)	395	(485)
Foreign [Member]
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss) [Abstract]
Net Loss (Gain) Arising During The Period			663
Recognition of amortization in net periodic benefit cost Prior service credit (cost)			175
Actuarial Loss			(883)
Effect of exchange rates on amounts Included in AOCI			(890)
Total Recognized in Other Comprehensive (Income) Loss			(2,261)
Total Recognized In Net Periodic Benefit Cost And Other Comprehensive Loss Or (Income)			1,899
Foreign [Member] \| Pension Plans, Defined Benefit [Member]
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Service Cost	4,340	3,507	3,426
Interest Cost	3,416	3,046	2,254
Expected Return on Plan Assets	(4,262)	(3,668)	(2,228)
Settlement Loss	(88)	258	2
Curtailment Charge	(1,155)	0
Actuarial Loss Amortization	886	757	881
Prior Service (Credit) Cost Amortization	(167)	(165)	(175)
Net Periodic Benefit Cost	2,970	3,735	4,160
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss) [Abstract]
Net Loss (Gain) Arising During The Period	(1,594)	3,826	(663)
Recognition of amortization in net periodic benefit cost Prior service credit (cost)	1,325	196	175
Actuarial Loss	(758)	(1,015)	(883)
Other comprehensive income loss plan settlement	(39)	0
Other Comprehensive Income Loss Plan Curtailments	(3)	0
Effect of exchange rates on amounts Included in AOCI	1,535	(61)	890
Total Recognized in Other Comprehensive (Income) Loss	466	2,946
Total Recognized In Net Periodic Benefit Cost And Other Comprehensive Loss Or (Income)	3,436	6,681	1,899
U.S. [Member]
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss) [Abstract]
Net Loss (Gain) Arising During The Period			(453)
Recognition of amortization in net periodic benefit cost Prior service credit (cost)			(59)
Actuarial Loss			(2,276)
Effect of exchange rates on amounts Included in AOCI			0
Total Recognized in Other Comprehensive (Income) Loss			(1,882)
Total Recognized In Net Periodic Benefit Cost And Other Comprehensive Loss Or (Income)			(120)
U.S. [Member] \| Pension Plans, Defined Benefit [Member]
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Service Cost	491	434	383
Interest Cost	2,923	3,313	1,847
Expected Return on Plan Assets	(4,810)	(3,227)	(2,803)
Settlement Loss	22,667	0	0
Curtailment Charge	0	0
Actuarial Loss Amortization	2,110	2,348	2,276
Prior Service (Credit) Cost Amortization	0	0	59
Net Periodic Benefit Cost	23,381	2,868	1,762
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss) [Abstract]
Net Loss (Gain) Arising During The Period	1,536	3,926	453
Recognition of amortization in net periodic benefit cost Prior service credit (cost)	50	0	(59)
Actuarial Loss	3,967	(2,347)	(2,276)
Other comprehensive income loss plan settlement	(22,667)	0
Other Comprehensive Income Loss Plan Curtailments	0	0
Effect of exchange rates on amounts Included in AOCI	0	0	0
Total Recognized in Other Comprehensive (Income) Loss	(17,114)	1,579
Total Recognized In Net Periodic Benefit Cost And Other Comprehensive Loss Or (Income)	6,267	4,447	(120)
U.S. [Member] \| Other Postretirement Benefit Plans Defined Benefit [Member]
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Service Cost	5	6	7
Interest Cost	77	143	130
Prior Service (Credit) Cost Amortization	(5)	0	42
Net Periodic Benefit Cost	77	149	179
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss) [Abstract]
Net Loss (Gain) Arising During The Period	(864)	395	(443)
Actuarial Loss	5	0	(42)
Total Recognized In Net Periodic Benefit Cost And Other Comprehensive Loss Or (Income)	$ (782)	$ 544	$ (306)

Pension and Other Postretirem_4

Pension and Other Postretirement Benefits - Assumptions Used in Determining Benefit Obligations and Net Periodic Pension Costs (Details)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plan, Assumed Health Care Cost Trend Rates [Abstract]
Health Care Cost Trend Rate For Next Year	5.70%	5.90%
Rate to Which the Cost Trend Rate is Assumed to Decline (Ultimate Trend Rate)	4.50%	4.50%
Year that Rate Reaches Ultimate Trend Rate	2037	2037
Domestic plan [Member] \| Pension Plans, Defined Benefit [Member]
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Discount Rate	2.19%	3.06%
Rate of Compensation Increase	6.00%	6.00%
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]
Discount Rate	3.11%	4.08%
Expected Long-Term Return on Plan Assets	6.50%	5.75%
Rate of Compensation Increase	6.00%	5.50%
Domestic plan [Member] \| Other Postretirement Benefit Plans Defined Benefit [Member]
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Discount Rate	2.05%	2.98%
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]
Discount Rate	2.99%	4.03%
Foreign [Member] \| Pension Plans, Defined Benefit [Member]
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Discount Rate	1.79%	1.83%
Rate of Compensation Increase	2.74%	2.58%
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]
Discount Rate	2.30%	2.30%
Expected Long-Term Return on Plan Assets	2.20%	3.13%
Rate of Compensation Increase	2.79%	2.87%

Pension and Other Postretirem_5

Pension and Other Postretirement Benefits - Asset Allocations (Details) - Pension Plans, Defined Benefit [Member]	Dec. 31, 2020	Dec. 31, 2019
Domestic plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Target Plan Asset Allocations	100.00%
Actual Plan Asset Allocations	100.00%	100.00%
Domestic plan [Member] \| Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Target Plan Asset Allocations	10.00%
Actual Plan Asset Allocations	58.00%	32.00%
Domestic plan [Member] \| Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Target Plan Asset Allocations	90.00%
Actual Plan Asset Allocations	36.00%	64.00%
Domestic plan [Member] \| Other [Member]
Defined Benefit Plan Disclosure [Line Items]
Target Plan Asset Allocations	0.00%
Actual Plan Asset Allocations	6.00%	4.00%
Foreign [Member]
Defined Benefit Plan Disclosure [Line Items]
Target Plan Asset Allocations	100.00%
Actual Plan Asset Allocations	100.00%	100.00%
Foreign [Member] \| Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Target Plan Asset Allocations	37.00%
Actual Plan Asset Allocations	33.00%	34.00%
Foreign [Member] \| Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Target Plan Asset Allocations	53.00%
Actual Plan Asset Allocations	45.00%	45.00%
Foreign [Member] \| Other [Member]
Defined Benefit Plan Disclosure [Line Items]
Target Plan Asset Allocations	10.00%
Actual Plan Asset Allocations	22.00%	21.00%

Pension and Other Postretirem_6

Pension and Other Postretirement Benefits - Fair Value Hierarchy - Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	$ 302,270	$ 315,649	$ 144,241
Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	133,333	111,674	82,255
Insurance Contract [Member] \| Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets excluding assets measured at NAV	112,920
Fair Value of Plan Assets	112,920	92,657	79,873
Real Estate Fund [Member] \| Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	9,775	9,581	2,382
Other-alternative investments [Member] \| Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	10,638	9,436	0
Domestic plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	73,481	120,550	49,415
Foreign [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	228,789	195,099	$ 94,826
Fair Value Measurements Recurring [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	302,270	315,649
Fair Value Measurements Recurring [Member] \| Fair Value, Inputs, Level 1, 2 and 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	253,493	222,399
Fair Value Measurements Recurring [Member] \| Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	634	1,952
Fair Value Measurements Recurring [Member] \| Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	119,526	108,773
Fair Value Measurements Recurring [Member] \| Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	133,333	111,674
Fair Value Measurements Recurring [Member] \| Pension Assets At NAV [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	48,777	93,250
Fair Value Measurements Recurring [Member] \| Domestic plan [Member] \| Fair Value, Inputs, Level 1, 2 and 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	73,481	69,146
Fair Value Measurements Recurring [Member] \| Domestic plan [Member] \| Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	450
Fair Value Measurements Recurring [Member] \| Domestic plan [Member] \| Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	69,385	64,636
Fair Value Measurements Recurring [Member] \| Domestic plan [Member] \| Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	4,096	4,060
Fair Value Measurements Recurring [Member] \| Domestic plan [Member] \| Cash and Cash Equivalents [Member] \| Fair Value, Inputs, Level 1, 2 and 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	450
Fair Value Measurements Recurring [Member] \| Domestic plan [Member] \| Cash and Cash Equivalents [Member] \| Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	450
Fair Value Measurements Recurring [Member] \| Domestic plan [Member] \| Cash and Cash Equivalents [Member] \| Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Fair Value Measurements Recurring [Member] \| Domestic plan [Member] \| Cash and Cash Equivalents [Member] \| Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Fair Value Measurements Recurring [Member] \| Domestic plan [Member] \| Pooled Separate Accounts [Member] \| Fair Value, Inputs, Level 1, 2 and 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	69,385	64,636
Fair Value Measurements Recurring [Member] \| Domestic plan [Member] \| Pooled Separate Accounts [Member] \| Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Fair Value Measurements Recurring [Member] \| Domestic plan [Member] \| Pooled Separate Accounts [Member] \| Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	69,385	64,636
Fair Value Measurements Recurring [Member] \| Domestic plan [Member] \| Pooled Separate Accounts [Member] \| Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Fair Value Measurements Recurring [Member] \| Domestic plan [Member] \| Real Estate Fund [Member] \| Fair Value, Inputs, Level 1, 2 and 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	4,096	4,060
Fair Value Measurements Recurring [Member] \| Domestic plan [Member] \| Real Estate Fund [Member] \| Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Fair Value Measurements Recurring [Member] \| Domestic plan [Member] \| Real Estate Fund [Member] \| Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Fair Value Measurements Recurring [Member] \| Domestic plan [Member] \| Real Estate Fund [Member] \| Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	4,096	4,060
Fair Value Measurements Recurring [Member] \| Domestic plan [Member] \| Commingled funds measured at NAV [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	51,404
Fair Value Measurements Recurring [Member] \| Domestic plan [Member] \| Pooled separate accounts measured at NAV [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Fair Value Measurements Recurring [Member] \| Domestic plan [Member] \| Pension Assets At NAV [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	73,481	120,550
Fair Value Measurements Recurring [Member] \| Foreign [Member] \| Fair Value, Inputs, Level 1, 2 and 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	180,012	153,253
Fair Value Measurements Recurring [Member] \| Foreign [Member] \| Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	634	1,502
Fair Value Measurements Recurring [Member] \| Foreign [Member] \| Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	50,141	44,137
Fair Value Measurements Recurring [Member] \| Foreign [Member] \| Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	129,237	107,614
Fair Value Measurements Recurring [Member] \| Foreign [Member] \| Cash and Cash Equivalents [Member] \| Fair Value, Inputs, Level 1, 2 and 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	634	1,502
Fair Value Measurements Recurring [Member] \| Foreign [Member] \| Cash and Cash Equivalents [Member] \| Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	634	1,502
Fair Value Measurements Recurring [Member] \| Foreign [Member] \| Cash and Cash Equivalents [Member] \| Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Fair Value Measurements Recurring [Member] \| Foreign [Member] \| Cash and Cash Equivalents [Member] \| Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Fair Value Measurements Recurring [Member] \| Foreign [Member] \| Insurance Contract [Member] \| Fair Value, Inputs, Level 1, 2 and 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	112,920	92,657
Fair Value Measurements Recurring [Member] \| Foreign [Member] \| Insurance Contract [Member] \| Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Fair Value Measurements Recurring [Member] \| Foreign [Member] \| Insurance Contract [Member] \| Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Fair Value Measurements Recurring [Member] \| Foreign [Member] \| Insurance Contract [Member] \| Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	112,920	92,657
Fair Value Measurements Recurring [Member] \| Foreign [Member] \| Diversified equity securities - registered investment companies [Member] \| Fair Value, Inputs, Level 1, 2 and 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	8,851	8,604
Fair Value Measurements Recurring [Member] \| Foreign [Member] \| Diversified equity securities - registered investment companies [Member] \| Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Fair Value Measurements Recurring [Member] \| Foreign [Member] \| Diversified equity securities - registered investment companies [Member] \| Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	8,851	8,604
Fair Value Measurements Recurring [Member] \| Foreign [Member] \| Diversified equity securities - registered investment companies [Member] \| Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Fair Value Measurements Recurring [Member] \| Foreign [Member] \| Fixed income - foreign registered investment companies [Member] \| Fair Value, Inputs, Level 1, 2 and 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	3,711	3,021
Fair Value Measurements Recurring [Member] \| Foreign [Member] \| Fixed income - foreign registered investment companies [Member] \| Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Fair Value Measurements Recurring [Member] \| Foreign [Member] \| Fixed income - foreign registered investment companies [Member] \| Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	3,711	3,021
Fair Value Measurements Recurring [Member] \| Foreign [Member] \| Fixed income - foreign registered investment companies [Member] \| Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Fair Value Measurements Recurring [Member] \| Foreign [Member] \| Fixed income government securities [Member] \| Fair Value, Inputs, Level 1, 2 and 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	37,579	32,512
Fair Value Measurements Recurring [Member] \| Foreign [Member] \| Fixed income government securities [Member] \| Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Fair Value Measurements Recurring [Member] \| Foreign [Member] \| Fixed income government securities [Member] \| Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	37,579	32,512
Fair Value Measurements Recurring [Member] \| Foreign [Member] \| Fixed income government securities [Member] \| Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Fair Value Measurements Recurring [Member] \| Foreign [Member] \| Real Estate Fund [Member] \| Fair Value, Inputs, Level 1, 2 and 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	5,679	5,521
Fair Value Measurements Recurring [Member] \| Foreign [Member] \| Real Estate Fund [Member] \| Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Fair Value Measurements Recurring [Member] \| Foreign [Member] \| Real Estate Fund [Member] \| Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Fair Value Measurements Recurring [Member] \| Foreign [Member] \| Real Estate Fund [Member] \| Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	5,679	5,521
Fair Value Measurements Recurring [Member] \| Foreign [Member] \| Other-alternative investments [Member] \| Fair Value, Inputs, Level 1, 2 and 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	10,638	9,436
Fair Value Measurements Recurring [Member] \| Foreign [Member] \| Other-alternative investments [Member] \| Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Fair Value Measurements Recurring [Member] \| Foreign [Member] \| Other-alternative investments [Member] \| Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	0	0
Fair Value Measurements Recurring [Member] \| Foreign [Member] \| Other-alternative investments [Member] \| Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	10,638	9,436
Fair Value Measurements Recurring [Member] \| Foreign [Member] \| Commingled funds measured at NAV [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	2,368	2,037
Fair Value Measurements Recurring [Member] \| Foreign [Member] \| Diversified investment fund - registered investment companies measured at NAV [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	46,409	39,809
Fair Value Measurements Recurring [Member] \| Foreign [Member] \| Pension Assets At NAV [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	$ 228,789	$ 195,099

Pension and Other Postretirem_7

Pension and Other Postretirement Benefits - Level 3 Asset Rollforward (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets at Beginning of Year	$ 315,649	$ 144,241
Translation Difference	13,876	5,499
Fair Value of Plan Assets at End of Year	302,270	315,649
Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets at Beginning of Year	111,674	82,255
Purchases	4,909	4,791
Assets acquired in business combinations		16,101
Sales		(516)
Settlements	(2,027)	(1,730)
Realized Gains		0
Unrealized Gains	8,730	11,642
Translation Difference	10,047	(869)
Fair Value of Plan Assets at End of Year	133,333	111,674
Insurance Contract [Member] \| Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets at Beginning of Year	92,657	79,873
Purchases	3,902	3,762
Assets acquired in business combinations		129
Sales		0
Settlements	(2,027)	(1,730)
Realized Gains		0
Unrealized Gains	8,917	12,199
Translation Difference	9,471	(1,576)
Fair Value of Plan Assets at End of Year	112,920	92,657
Real Estate Fund [Member] \| Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets at Beginning of Year	9,581	2,382
Purchases	18	0
Assets acquired in business combinations		7,058
Sales		(238)
Settlements	0	0
Realized Gains		0
Unrealized Gains	(16)	403
Translation Difference	192	(24)
Fair Value of Plan Assets at End of Year	9,775	9,581
Other-alternative investments [Member] \| Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets at Beginning of Year	9,436	0
Purchases	989	1,029
Assets acquired in business combinations		8,914
Sales		(278)
Settlements	0	0
Realized Gains		0
Unrealized Gains	(171)	(960)
Translation Difference	384	731
Fair Value of Plan Assets at End of Year	$ 10,638	$ 9,436

Pension and Other Postretirem_8

Pension and Other Postretirement Benefits - Cash Flow (Details) $ in Thousands	Dec. 31, 2020USD ($)
Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Minimum Cash Contributions, Next Fiscal Year	$ 10,000
2021	12,581
2022	12,237
2023	13,096
2024	12,979
2025	13,622
2025 to 2029	72,965
Other Postretirement Benefit Plans Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Minimum Cash Contributions, Next Fiscal Year	300
Domestic plan [Member] \| Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Minimum Cash Contributions, Next Fiscal Year	5,900
2021	5,923
2022	5,298
2023	6,072
2024	6,234
2025	6,228
2025 to 2029	30,443
Domestic plan [Member] \| Other Postretirement Benefit Plans Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
2021	286
2022	278
2023	265
2024	245
2025	226
2025 to 2029	923
Foreign [Member] \| Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Minimum Cash Contributions, Next Fiscal Year	4,100
2021	6,658
2022	6,939
2023	7,024
2024	6,745
2025	7,394
2025 to 2029	$ 42,522

Pension and Other Postretirem_9

Pension and Other Postretirement Benefits - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Defined Benefit Plan Disclosure [Line Items]
Prior Service Cost Charge	$ 1,800
Defined Benefit Plan, Contributions by Employer	9,214	$ 6,310
Defined Benefit Plan Premium Refund	1,600
Defined Benefit Plan Recognized Net Gain Loss Due To Settlements And Curtailments 1	22,700
Total Contribution Amount	5,700	4,000	$ 3,100
Defined Benefit Plan Other Costs	$ 1,800
Pooled Separate account percentage	As of December 31, 2020, the U.S. pension plan pooled separate accounts included approximately 61 percent of investments in equity securities and 39 percent of investments in fixed income securities.
Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Accumulated Benefit Obligation	$ 344,400	366,000
Net Periodic Benefit Cost	26,351	6,603	5,922
Gross AOCI	$ (27,484)	(68,105)
Diversified investment fund - registered investment companies measured at NAV [Member] \| Defined Benefit Plan Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan Additional Disclosures About Plan Assets	62.00%
Diversified investment fund - registered investment companies measured at NAV [Member] \| Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan Additional Disclosures About Plan Assets	19.00%
Diversified investment fund - registered investment companies measured at NAV [Member] \| Other Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan Additional Disclosures About Plan Assets	19.00%
Commingled funds measured at NAV [Member] \| Defined Benefit Plan Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan Additional Disclosures About Plan Assets	35.00%
Commingled funds measured at NAV [Member] \| Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan Additional Disclosures About Plan Assets	51.00%
Commingled funds measured at NAV [Member] \| Other Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan Additional Disclosures About Plan Assets	14.00%
Domestic plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Contributions by Employer	$ 2,302	1,087
Domestic plan [Member] \| Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Accumulated Benefit Obligation	109,500	152,900
Net Periodic Benefit Cost	23,381	2,868	1,762
Gross AOCI	(5,482)	(46,560)
Domestic plan [Member] \| Other Postretirement Benefit Plans Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Net Periodic Benefit Cost	77	149	179
Gross AOCI	124	(734)
Domestic plan [Member] \| Supplemental Employee Retirement Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Net Periodic Benefit Cost	2,500	1,800	1,600
Foreign [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Contributions by Employer	6,912	5,223
Foreign [Member] \| Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Accumulated Benefit Obligation	234,900	213,100
Net Periodic Benefit Cost	2,970	3,735	$ 4,160
Gross AOCI	(22,002)	(21,545)
Foreign [Member] \| Other Postretirement Benefit Plans Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Contributions by Employer	$ 250	$ 384

Pension and Other Postretire_10

Pension and Other Postretirement Benefits - Houghton and Cash Flow Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Jan. 01, 2019
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Contributions by Employer	$ 9,214,000	$ 6,310,000
Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Acquired pension balance	55,374,000	55,967,000
Defined Benefit Plans, Estimated Future Employer Contributions in Next Fiscal Year	10,000,000
Pension Plans, Defined Benefit [Member] \| Cleveland Bakers and Teamsters Pension Fund [Member]
Defined Benefit Plan Disclosure [Line Items]
Multiemployer Plan, Plan Liabilities	0		$ 589,000,000
Multiemployer Plans Plan Assets		364,000,000
Multiemployer Plans Plan Contributions	100,000
Other Postretirement Benefit Plans Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plans, Estimated Future Employer Contributions in Next Fiscal Year	$ 300,000
Other Current and Other Non-current Liabilities [Member] \| Pension Plans, Defined Benefit [Member] \| Cleveland Bakers and Teamsters Pension Fund [Member]
Defined Benefit Plan Disclosure [Line Items]
Multiemployer Plans Collective Bargaining Arrangement Expiration Date	May 1, 2022
Domestic plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Contributions by Employer	$ 2,302,000	1,087,000
Domestic plan [Member] \| Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Acquired pension balance	36,488,000	33,173,000
Defined Benefit Plans, Estimated Future Employer Contributions in Next Fiscal Year	5,900,000
Domestic plan [Member] \| Other Postretirement Benefit Plans Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Acquired pension balance	3,234,000	4,266,000
Foreign Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Contributions by Employer	6,912,000	5,223,000
Foreign Plan [Member] \| Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Acquired pension balance	18,886,000	22,794,000
Defined Benefit Plans, Estimated Future Employer Contributions in Next Fiscal Year	4,100,000
Foreign Plan [Member] \| Other Postretirement Benefit Plans Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Contributions by Employer	$ 250,000	$ 384,000

Other Noncurrent Liabilities (D

Other Noncurrent Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Other Liabilities Noncurrent [Abstract]
Restricted Insurance Settlements	$ 542	$ 19,678
Non-current income taxes payable	8,500	8,500
Uncertain Tax Positions (Includes Interest and Penalties)	28,961	24,609
Fair value of interst rate swaps	4,672	415
Environmental reserves	4,610	5,259
Deferred And Other Long-Term Compensation	6,257	6,625
Other	1,627	1,298
Total	$ 55,169	$ 66,384

Equity and Noncontrolling Int_3

Equity and Noncontrolling Interest - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Equity Class Of Treasury Stock [Line Items]
Common Stock Par Value	$ 1	$ 1
Common Stock Shares Authorized	30,000,000	30,000,000
Common Stock Shares, Issued	17,850,616	17,735,162
Shares issued for equity based comp plans	49,906
Shares issued for ESPP	0
Shares issued for Options exercise and Other activity	65,548
Preferred Stock Shares Authorized	10,000,000
Preferred Stock Par Or Stated Value Per Share	$ 1
2015 Share Repurchase [Member]
Equity Class Of Treasury Stock [Line Items]
Stock Repurchase Program Authorized Amount	$ 100
Stock Repurchase Program Remaining Authorize	$ 86.9

Equity and Noncontrolling Int_4

Equity and Noncontrolling Interest - AOCI Reclassifications (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Accumulated Other Comprehensive Income (Loss), Net of Tax, Beginning Balance	$ (78,170)	$ (80,715)	$ (65,100)
Other Comprehensive (Loss) Income, before Reclassifications, before Tax	33,667	(798)	(18,508)
Amounts Reclassed from AOCI	23,939	2,868	3,520
Related Tax Amounts	(6,034)	475	(627)
Accumulated Other Comprehensive Income (Loss), Net of Tax, Ending Balance	(26,598)	(78,170)	(80,715)
Accumulated Translation Adjustment [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax, Beginning Balance	(44,568)	(49,322)	(31,893)
Other Comprehensive (Loss) Income, before Reclassifications, before Tax	41,693	4,754	(17,429)
Amounts Reclassed from AOCI	0	0	0
Related Tax Amounts	0	0	0
Accumulated Other Comprehensive Income (Loss), Net of Tax, Ending Balance	(2,875)	(44,568)	(49,322)
Accumulated Defined Benefit Plans Adjustment [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax, Beginning Balance	(34,533)	(30,551)	(34,093)
Other Comprehensive (Loss) Income, before Reclassifications, before Tax	(6,617)	(8,088)	1,543
Amounts Reclassed from AOCI	24,141	3,169	3,085
Related Tax Amounts	(6,458)	937	(1,086)
Accumulated Other Comprehensive Income (Loss), Net of Tax, Ending Balance	(23,467)	(34,533)	(30,551)
Derivative Instruments
Accumulated Other Comprehensive Income (Loss), Net of Tax, Beginning Balance	(320)	0	0
Other Comprehensive (Loss) Income, before Reclassifications, before Tax	(4,257)	(415)	0
Amounts Reclassed from AOCI	0	0	0
Related Tax Amounts	979	95	0
Accumulated Other Comprehensive Income (Loss), Net of Tax, Ending Balance	(3,598)	(320)	0
Accumulated Net Unrealized Investment Gain (Loss) [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax, Beginning Balance	1,251	(842)	886
Other Comprehensive (Loss) Income, before Reclassifications, before Tax	2,848	2,951	(2,622)
Amounts Reclassed from AOCI	(202)	(301)	435
Related Tax Amounts	(555)	(557)	459
Accumulated Other Comprehensive Income (Loss), Net of Tax, Ending Balance	$ 3,342	$ 1,251	$ (842)

Fair Value - Assets (Details)

Fair Value - Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Company Owned Life Insurance	$ 1,961	$ 1,782
Assets Fair Value Disclosure	1,961	1,782
Level 1 [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Company Owned Life Insurance	0	0
Assets Fair Value Disclosure	0	0
Level 2 [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Company Owned Life Insurance	1,961	1,782
Assets Fair Value Disclosure	1,961	1,782
Level 3 [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Company Owned Life Insurance	0	0
Assets Fair Value Disclosure	$ 0	$ 0

Hedging Activities - Narrative

Hedging Activities - Narrative (Details) $ in Millions	Nov. 30, 2019USD ($)
Interest Rate Swap [Member] \| Other Liabilities Current [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability Notional Amount	$ 170

Hedging Activities - Table (Det

Hedging Activities - Table (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Derivative Instruments Gain Loss [Line Items]
Derivative Instruments Gain Loss Recognized In Other Comprehensive Income Effective Portion Net	$ 4,672	$ 415
Derivative Instruments Gain Loss Reclassified From Accumulated OCI Into Income Effective Portion Net	3,598	320
Interest Expense [Member]
Derivative Instruments Gain Loss [Line Items]
Derivative Instruments Gain Loss Recognized In Income Ineffective Portion And Amount Excluded From Effectiveness Testing Net	(1,754)	29	$ 0
Interest Rate Swap [Member]
Derivative Instruments Gain Loss [Line Items]
Derivative Instruments Gain Loss Reclassified From Accumulated OCI Into Income Effective Portion Net	3,598	320
Interest Rate Swap [Member] \| Other Noncurrent Liabilities [Member]
Derivative Instruments Gain Loss [Line Items]
Derivative Instruments Gain Loss Recognized In Other Comprehensive Income Effective Portion Net	$ 4,672	$ 415

Commitments and Contingencies -

Commitments and Contingencies - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2007	Dec. 31, 2005	Dec. 31, 2019
Loss Contingencies [Line Items]
Loss Contingency, Settlement Agreement, Terms	Prior to December 2020, the Company had restricted cash recorded in other assets related to proceeds from an inactive subsidiary of the Company which previously executed separate settlement and release agreements with two of its insurance carriers for an original total value of $35.0 million.
Percentage of defense and indemnity costs		27.00%
Indemnification assets	$ 7,615			$ 4,006
Maximum [Member]
Loss Contingencies [Line Items]
Unrelated Environmental Liability Accruals	200
Minimum [Member]
Loss Contingencies [Line Items]
Unrelated Environmental Liability Accruals	100
ACP [Member] \| Maximum [Member]
Loss Contingencies [Line Items]
Loss Contingency, Estimate of Possible Loss	1,000
ACP [Member] \| Minimum [Member]
Loss Contingencies [Line Items]
Loss Contingency, Estimate of Possible Loss	100
Asbestos claims [Member]
Loss Contingencies [Line Items]
Loss Contingency, Settlement Agreement, Terms		20.0	15.0
Asbestos claims [Member] \| Maximum [Member]
Loss Contingencies [Line Items]
Loss Contingency, Estimate of Possible Loss	500
Houghton environmental matters [Member]
Loss Contingencies [Line Items]
Loss Contingency, Estimate of Possible Loss	6,000			$ 6,600
Houghton environmental matters [Member] \| Maximum [Member]
Loss Contingencies [Line Items]
Loss Contingency, Estimate of Possible Loss	6,500
Houghton environmental matters [Member] \| Minimum [Member]
Loss Contingencies [Line Items]
Loss Contingency, Estimate of Possible Loss	5,500
Foreign Consumption Tax [Member]
Loss Contingencies [Line Items]
Indemnification assets	1,500
Business Combination Indemnification Assets Related to Former Ownership	22,000
Other Assets Miscellaneous Current	1,100
Other Selling General And Administrative Expense	400
Income Tax Reconciliation Tax Settlements Foreign	9,000
Foreign Consumption Tax [Member] \| Maximum [Member]
Loss Contingencies [Line Items]
Loss Contingency, Estimate of Possible Loss	34,000
Foreign Consumption Tax [Member] \| Minimum [Member]
Loss Contingencies [Line Items]
Loss Contingency, Estimate of Possible Loss	$ 400