Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment	Common Stock	Additional Paid-in Capital	Additional Paid-in Capital Cumulative Effect, Period of Adoption, Adjustment	Retained Earnings	Retained Earnings Cumulative Effect, Period of Adoption, Adjustment	Accumulated Other Comprehensive Loss
Beginning Balance (in shares) at Dec. 31, 2019			37,390
Beginning Balance at Dec. 31, 2019	$ 1,489,142		$ 374	$ 216,162		$ 1,413,453		$ (140,847)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	210,682					210,682
Other comprehensive income (loss):
Cumulative translation adjustment	34,412							34,412
Issuance of common stock in connection with:
Exercise of options (in shares)			140
Exercise of options	4,934		$ 1	4,933
Restricted share grants (in shares)			220
Restricted share grants	(10,756)		$ 3	(10,759)
Stock units issued under incentive compensation plan	2,314			2,314
Purchase and retirement of common stock (in shares)			(3,269)
Purchase and retirement of common stock	(353,451)		$ (33)	(235,554)		(117,864)
Share-based compensation	22,904			22,904
Ending Balance (in shares) at Dec. 31, 2020			34,481
Ending Balance at Dec. 31, 2020	1,400,181		$ 345	0		1,506,271		(106,435)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	234,966					234,966
Other comprehensive income (loss):
Cumulative translation adjustment	(22,405)							(22,405)
Issuance of common stock in connection with:
Exercise of options (in shares)			78
Exercise of options	2,694		$ 1	2,693
Restricted share grants (in shares)			196
Restricted share grants	(11,635)		$ 1	(11,636)
Stock units issued under incentive compensation plan	2,603			2,603
Purchase and retirement of common stock (in shares)			(422)
Purchase and retirement of common stock	(46,132)		$ (4)	(3,047)		(43,081)
Conversion feature of convertible senior notes due 2023	(2)			(2)
Share-based compensation	$ 23,051			23,051
Ending Balance (in shares) at Dec. 31, 2021	34,333		34,333
Ending Balance at Dec. 31, 2021	$ 1,583,321	$ (12,053)	$ 343	13,662	$ (34,131)	1,698,156	$ 22,078	(128,840)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	235,514					235,514
Other comprehensive income (loss):
Cumulative translation adjustment	$ (47,882)							(47,882)
Issuance of common stock in connection with:
Exercise of options (in shares)	68		68
Exercise of options	$ 2,317			2,317
Restricted share grants (in shares)			199
Restricted share grants	(17,953)		$ 2	(17,955)
Stock units issued under incentive compensation plan	1,664			1,664
Purchase and retirement of common stock (in shares)			(574)
Purchase and retirement of common stock	(88,606)		$ (5)	(88,601)
Conversion feature of convertible senior notes due 2023	(15)			(15)
Share-based compensation	25,414			25,414
Reclassification of negative additional paid-in capital	$ 0			97,645		(97,645)
Ending Balance (in shares) at Dec. 31, 2022	34,026		34,026
Ending Balance at Dec. 31, 2022	$ 1,681,721		$ 340	$ 0		$ 1,858,103		$ (176,722)