CONSOLIDATED STATEMENTS OF EQUITY (UNAUDITED) - USD ($) shares in Thousands, $ in Thousands	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Shares	Total
Beginning Balance at Dec. 31, 2021	$ 9,858	$ 451,268	$ 2,970,303	$ (257,579)	$ (2,309,941)	$ 863,909
Beginning Balance (in shares) at Dec. 31, 2021	58,787
Increase (Decrease) in Stockholders' Equity
Net income			126,030			126,030
Unrecognized amounts from defined benefit pension plans, net of tax				107		107
Unrealized gain (loss) on derivatives designated and qualifying as cash flow hedges, net of tax				5,355		5,355
Currency translation adjustment, net of tax				(7,448)		(7,448)
Cash dividends declared			(32,505)			(32,505)
Stock-based compensation activity		10,834			1,349	12,183
Stock-based compensation activity (in shares)	116
Purchase of shares for treasury					(104,579)	(104,579)
Purchase of shares for treasury (in shares)	(805)
Other		115	(107)			8
Ending Balance at Mar. 31, 2022	$ 9,858	462,217	3,063,721	(259,565)	(2,413,171)	863,060
Ending Balance (in shares) at Mar. 31, 2022	58,098
Beginning Balance at Dec. 31, 2021	$ 9,858	451,268	2,970,303	(257,579)	(2,309,941)	863,909
Beginning Balance (in shares) at Dec. 31, 2021	58,787
Increase (Decrease) in Stockholders' Equity
Net income						363,078
Unrecognized amounts from defined benefit pension plans, net of tax						148
Unrealized gain (loss) on derivatives designated and qualifying as cash flow hedges, net of tax						22,082
Currency translation adjustment, net of tax						(94,193)
Ending Balance at Sep. 30, 2022	$ 9,858	471,172	3,237,200	(329,542)	(2,464,460)	924,228
Ending Balance (in shares) at Sep. 30, 2022	57,738
Beginning Balance at Mar. 31, 2022	$ 9,858	462,217	3,063,721	(259,565)	(2,413,171)	863,060
Beginning Balance (in shares) at Mar. 31, 2022	58,098
Increase (Decrease) in Stockholders' Equity
Net income			127,823			127,823
Unrecognized amounts from defined benefit pension plans, net of tax				(44)		(44)
Unrealized gain (loss) on derivatives designated and qualifying as cash flow hedges, net of tax				8,950		8,950
Currency translation adjustment, net of tax				(34,616)		(34,616)
Cash dividends declared			(32,698)			(32,698)
Stock-based compensation activity		5,428			146	5,574
Stock-based compensation activity (in shares)	15
Purchase of shares for treasury					(25,119)	(25,119)
Purchase of shares for treasury (in shares)	(191)
Other		(2,021)	2,074			53
Ending Balance at Jun. 30, 2022	$ 9,858	465,624	3,160,920	(285,275)	(2,438,144)	912,983
Ending Balance (in shares) at Jun. 30, 2022	57,922
Increase (Decrease) in Stockholders' Equity
Net income			109,225			109,225
Unrecognized amounts from defined benefit pension plans, net of tax				85		85
Unrealized gain (loss) on derivatives designated and qualifying as cash flow hedges, net of tax				7,777		7,777
Currency translation adjustment, net of tax				(52,129)		(52,129)
Cash dividends declared			(32,580)			(32,580)
Stock-based compensation activity		5,158			202	5,360
Stock-based compensation activity (in shares)	14
Purchase of shares for treasury					(26,518)	(26,518)
Purchase of shares for treasury (in shares)	(198)
Other		390	(365)			25
Ending Balance at Sep. 30, 2022	$ 9,858	471,172	3,237,200	(329,542)	(2,464,460)	924,228
Ending Balance (in shares) at Sep. 30, 2022	57,738
Beginning Balance at Dec. 31, 2022	$ 9,858	481,857	3,306,500	(275,398)	(2,488,776)	1,034,041
Beginning Balance (in shares) at Dec. 31, 2022	57,624
Increase (Decrease) in Stockholders' Equity
Net income			121,931			121,931
Unrecognized amounts from defined benefit pension plans, net of tax				560		560
Unrealized gain (loss) on derivatives designated and qualifying as cash flow hedges, net of tax				9,131		9,131
Currency translation adjustment, net of tax				14,818		14,818
Cash dividends declared			(36,971)			(36,971)
Stock-based compensation activity		12,475			1,635	14,110
Stock-based compensation activity (in shares)	143
Purchase of shares for treasury					(32,158)	(32,158)
Purchase of shares for treasury (in shares)	(194)
Other		3,691	(3,917)			(226)
Ending Balance at Mar. 31, 2023	$ 9,858	498,023	3,387,543	(250,889)	(2,519,299)	1,125,236
Ending Balance (in shares) at Mar. 31, 2023	57,573
Beginning Balance at Dec. 31, 2022	$ 9,858	481,857	3,306,500	(275,398)	(2,488,776)	1,034,041
Beginning Balance (in shares) at Dec. 31, 2022	57,624
Increase (Decrease) in Stockholders' Equity
Net income						388,605
Unrecognized amounts from defined benefit pension plans, net of tax						(821)
Unrealized gain (loss) on derivatives designated and qualifying as cash flow hedges, net of tax						6,908
Currency translation adjustment, net of tax						3,478
Ending Balance at Sep. 30, 2023	$ 9,858	519,151	3,578,154	(265,833)	(2,615,748)	1,225,582
Ending Balance (in shares) at Sep. 30, 2023	57,201
Beginning Balance at Mar. 31, 2023	$ 9,858	498,023	3,387,543	(250,889)	(2,519,299)	1,125,236
Beginning Balance (in shares) at Mar. 31, 2023	57,573
Increase (Decrease) in Stockholders' Equity
Net income			137,331			137,331
Unrecognized amounts from defined benefit pension plans, net of tax				(1,366)		(1,366)
Unrealized gain (loss) on derivatives designated and qualifying as cash flow hedges, net of tax				(4,888)		(4,888)
Currency translation adjustment, net of tax				20,957		20,957
Cash dividends declared			(36,917)			(36,917)
Stock-based compensation activity		12,818			1,697	14,515
Stock-based compensation activity (in shares)	152
Purchase of shares for treasury					(53,076)	(53,076)
Purchase of shares for treasury (in shares)	(312)
Other		4,462	(4,830)			(368)
Ending Balance at Jun. 30, 2023	$ 9,858	515,303	3,483,127	(236,186)	(2,570,678)	1,201,424
Ending Balance (in shares) at Jun. 30, 2023	57,413
Increase (Decrease) in Stockholders' Equity
Net income			129,343			129,343
Unrecognized amounts from defined benefit pension plans, net of tax				(15)		(15)
Unrealized gain (loss) on derivatives designated and qualifying as cash flow hedges, net of tax				2,665		2,665
Currency translation adjustment, net of tax				(32,297)		(32,297)
Cash dividends declared			(36,876)			(36,876)
Stock-based compensation activity		6,513			285	6,798
Stock-based compensation activity (in shares)	26
Purchase of shares for treasury					(45,355)	(45,355)
Purchase of shares for treasury (in shares)	(238)
Other		(2,665)	2,560			(105)
Ending Balance at Sep. 30, 2023	$ 9,858	$ 519,151	$ 3,578,154	$ (265,833)	$ (2,615,748)	$ 1,225,582
Ending Balance (in shares) at Sep. 30, 2023	57,201