CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - USD ($) $ in Thousands	Total	Retained Earnings	Accumulated Other Comprehensive (Loss) Income	Common Stock Par Value	Treasury Stock	Capital in Excess of Par Value	Non- Controlling Interest
Beginning balance at Dec. 31, 2020	$ 1,850,785	$ 1,643,825	$ (281,709)	$ 695	$ (361,583)	$ 849,161	$ 396
Increase (Decrease) in Stockholders' Equity
Net income (loss)	186,107	186,488					(381)
Acquisitions of non-controlling interest	38,543						38,543
Foreign currency translation adjustments	(57,783)		(57,317)				(466)
Changes in unrecognized pension gains and related amortization, net of tax	7,660		7,660
Changes in derivative gains, net of tax	1,039		1,039
Stock awards and option exercises	71,533			8	18,085	53,440
Cash dividends declared on common stock	(73,493)	(73,493)
Treasury stock purchased	(28,398)				(28,398)
Ending balance at Sep. 30, 2021	1,995,993	1,756,820	(330,327)	703	(371,896)	902,601	38,092
Beginning balance at Jun. 30, 2021	1,986,663	1,734,638	(303,058)	702	(344,382)	898,382	381
Increase (Decrease) in Stockholders' Equity
Net income (loss)	46,894	47,260					(366)
Acquisitions of non-controlling interest	38,543						38,543
Foreign currency translation adjustments	(30,410)		(29,944)				(466)
Changes in unrecognized pension gains and related amortization, net of tax	2,445		2,445
Changes in derivative gains, net of tax	230		230
Stock awards and option exercises	5,104			1	884	4,219
Cash dividends declared on common stock	(25,078)	(25,078)
Treasury stock purchased	(28,398)				(28,398)
Ending balance at Sep. 30, 2021	1,995,993	1,756,820	(330,327)	703	(371,896)	902,601	38,092
Beginning balance at Dec. 31, 2021	1,984,600	1,789,413	(316,041)	704	(421,203)	916,534	15,193
Increase (Decrease) in Stockholders' Equity
Net income (loss)	180,161	180,292					(131)
Foreign currency translation adjustments	(184,051)		(182,432)				(1,619)
Changes in unrecognized pension gains and related amortization, net of tax	4,062		4,062
Changes in derivative gains, net of tax	3,663		3,663
Stock awards and option exercises	46,675			3	8,729	37,943
Cash dividends declared on common stock	(74,656)	(74,656)
Treasury stock purchased	(72,329)				(72,329)
Ending balance at Sep. 30, 2022	1,888,125	1,895,049	(490,748)	707	(484,803)	954,477	13,443
Beginning balance at Jun. 30, 2022	1,948,464	1,865,634	(404,576)	706	(467,550)	939,897	14,353
Increase (Decrease) in Stockholders' Equity
Net income (loss)	54,177	54,244					(67)
Foreign currency translation adjustments	(92,164)		(91,321)				(843)
Changes in unrecognized pension gains and related amortization, net of tax	1,607		1,607
Changes in derivative gains, net of tax	3,542		3,542
Stock awards and option exercises	16,569			1	1,988	14,580
Cash dividends declared on common stock	(24,829)	(24,829)
Treasury stock purchased	(19,241)				(19,241)
Ending balance at Sep. 30, 2022	$ 1,888,125	$ 1,895,049	$ (490,748)	$ 707	$ (484,803)	$ 954,477	$ 13,443