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)	62,371	62,423					(52)
Foreign currency translation adjustments	(23,042)		(23,080)				38
Changes in unrecognized pension gains (losses) and related amortization, net of tax	825		825
Changes in derivative gains (losses), net of tax	(412)		(412)
Stock awards and option exercises	15,004			1	2,319	12,684
Cash dividends declared on common stock	(24,912)	(24,912)
Treasury stock purchased	(15,983)				(15,983)
Ending balance at Mar. 31, 2022	1,998,451	1,826,924	(338,708)	705	(434,867)	929,218	15,179
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)	54,586	54,764					(178)
Foreign currency translation adjustments	25,624	(226)	25,007				843
Changes in unrecognized pension gains (losses) and related amortization, net of tax	253		253
Changes in derivative gains (losses), net of tax	(1,367)		(1,367)
Stock awards and option exercises	25,034			2	2,666	22,366
Cash dividends declared on common stock	(24,848)	(24,848)
Treasury stock purchased	(19,729)				(19,729)
Ending balance at Mar. 31, 2023	$ 2,127,757	$ 1,958,930	$ (317,473)	$ 711	$ (520,329)	$ 990,984	$ 14,934