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, 2021	$ 1,984,600	$ 1,789,413	$ (316,041)	$ 704	$ (421,203)	$ 916,534	$ 15,193
Increase (Decrease) in Stockholders' Equity
Net income (loss)	125,984	126,048					(64)
Foreign currency translation adjustments	(91,887)		(91,111)				(776)
Changes in unrecognized pension gains (losses) and related amortization, net of tax	2,455		2,455
Changes in derivative gains (losses), net of tax	121		121
Stock awards and option exercises	30,106			2	6,741	23,363
Cash dividends declared on common stock	(49,827)	(49,827)
Treasury stock purchased	(53,088)				(53,088)
Ending balance at Jun. 30, 2022	1,948,464	1,865,634	(404,576)	706	(467,550)	939,897	14,353
Beginning balance at Mar. 31, 2022	1,998,451	1,826,924	(338,708)	705	(434,867)	929,218	15,179
Increase (Decrease) in Stockholders' Equity
Net income (loss)	63,613	63,625					(12)
Foreign currency translation adjustments	(68,845)		(68,031)				(814)
Changes in unrecognized pension gains (losses) and related amortization, net of tax	1,630		1,630
Changes in derivative gains (losses), net of tax	533		533
Stock awards and option exercises	15,102			1	4,422	10,679
Cash dividends declared on common stock	(24,915)	(24,915)
Treasury stock purchased	(37,105)				(37,105)
Ending balance at Jun. 30, 2022	1,948,464	1,865,634	(404,576)	706	(467,550)	939,897	14,353
Beginning balance at Dec. 31, 2022	2,068,204	1,929,240	(341,366)	709	(503,266)	968,618	14,269
Increase (Decrease) in Stockholders' Equity
Net income (loss)	137,633	137,836					(203)
Foreign currency translation adjustments	23,875	(226)	24,129				(28)
Changes in unrecognized pension gains (losses) and related amortization, net of tax	455		455
Changes in derivative gains (losses), net of tax	(5,131)		(5,131)
Stock awards and option exercises	42,214			4	5,821	36,389
Cash dividends declared on common stock	(49,785)	(49,785)
Treasury stock purchased	(29,039)				(29,039)
Ending balance at Jun. 30, 2023	2,188,426	2,017,065	(321,913)	713	(526,484)	1,005,007	14,038
Beginning balance at Mar. 31, 2023	2,127,757	1,958,930	(317,473)	711	(520,329)	990,984	14,934
Increase (Decrease) in Stockholders' Equity
Net income (loss)	83,047	83,072					(25)
Foreign currency translation adjustments	(1,749)	0	(878)				(871)
Changes in unrecognized pension gains (losses) and related amortization, net of tax	202		202
Changes in derivative gains (losses), net of tax	(3,764)		(3,764)
Stock awards and option exercises	17,180			2	3,155	14,023
Cash dividends declared on common stock	(24,937)	(24,937)
Treasury stock purchased	(9,310)				(9,310)
Ending balance at Jun. 30, 2023	$ 2,188,426	$ 2,017,065	$ (321,913)	$ 713	$ (526,484)	$ 1,005,007	$ 14,038