Consolidated Statements of Changes in Equity - USD ($) $ in Thousands	Total	Common Stock	Capital In Excess of Par Value	Retained Earnings	Accumulated Other Comprehensive Loss
Beginning balance (in shares) at Dec. 31, 2021		138,449,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Purchase and retirement of common stock (in shares)		(5,914,000)
Issuance of common stock under the employee stock purchase plan (in shares)		90,000
Issuance of common stock under share-based award plans (in shares)		1,537,000
Ending balance (in shares) at Dec. 31, 2022		134,162,000
Beginning balance at Dec. 31, 2021		$ 1,384	$ 1,246,608	$ 632,614	$ (19,843)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Purchase and retirement of common stock		(58)	(37,019)	(301,365)
Issuance of common stock under the employee stock purchase plan		1	4,340
Issuance of common stock under share-based award plans		15	53,830
Stock-based compensation			39,403
Net income	$ 475,467			475,467
Dividends declared ($0.95, $0.89 and $0.83 per share)	(112,429)			(112,429)
Other comprehensive (loss) income	(29,124)				(29,124)
Ending balance at Dec. 31, 2022	$ 1,953,824	$ 1,342	1,307,162	694,287	(48,967)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Purchase and retirement of common stock (in shares)		(5,237,000)
Issuance of common stock under the employee stock purchase plan (in shares)		85,000
Issuance of common stock under share-based award plans (in shares)		2,168,000
Ending balance (in shares) at Dec. 31, 2023	131,177,513	131,178,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Purchase and retirement of common stock		$ (52)	(34,652)	(276,065)
Issuance of common stock under the employee stock purchase plan		1	4,273
Issuance of common stock under share-based award plans		21	96,871
Stock-based compensation			31,308
Net income	$ 462,258			462,258
Dividends declared ($0.95, $0.89 and $0.83 per share)	(117,894)			(117,894)
Other comprehensive (loss) income	11,935				11,935
Ending balance at Dec. 31, 2023	$ 2,131,828	$ 1,312	1,404,962	762,586	(37,032)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Purchase and retirement of common stock (in shares)		(6,840,000)
Issuance of common stock under the employee stock purchase plan (in shares)		76,000
Issuance of common stock under share-based award plans (in shares)		2,426,000
Ending balance (in shares) at Dec. 31, 2024	126,839,734	126,840,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Purchase and retirement of common stock		$ (69)	(49,754)	(462,655)
Issuance of common stock under the employee stock purchase plan		1	4,437
Issuance of common stock under share-based award plans		24	121,545
Stock-based compensation			58,626
Net income	$ 581,191			581,191
Dividends declared ($0.95, $0.89 and $0.83 per share)	(123,119)			(123,119)
Other comprehensive (loss) income	(9,943)				(9,943)
Ending balance at Dec. 31, 2024	$ 2,252,112	$ 1,268	$ 1,539,816	$ 758,003	$ (46,975)