Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock Voting [Member]	Additional Paid-In Capital [Member]	Treasury Stock - Common Stock Voting [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Loss [Member]
Beginning Balance at Dec. 31, 2019	$ 770,091	$ 122	$ 342,541	$ (153,388)	$ 591,086	$ (10,270)
Net income	299,377				299,377
Cumulative translation adjustment and foreign currency exchange hedge, net of tax	6,164					6,164
Unrealized net gain (loss) on securities available-for-sale, net of tax	(544)					(544)
Stock-based compensation	25,613		25,613
Exercise of stock options	4,007	1	4,006
Withholding tax payments on restricted stock vesting and stock option exercises	(42,418)		(42,418)
Repurchases of common stock	(16,135)			(16,135)
Cash dividend on common stock	(91,094)				(91,094)
Ending Balance at Dec. 31, 2020	955,061	123	329,742	(169,523)	799,369	(4,650)
Net income	257,888				257,888
Cumulative translation adjustment and foreign currency exchange hedge, net of tax	(8,680)					(8,680)
Stock-based compensation	27,314		27,314
Exercise of stock options	7,096		7,096
Withholding tax payments on restricted stock vesting and stock option exercises	(33,890)		(33,890)
Repurchases of common stock	(63,189)			(63,189)
Cash dividend on common stock	(100,291)				(100,291)
Ending Balance at Dec. 31, 2021	1,041,309	123	330,262	(232,712)	956,966	(13,330)
Net income	250,224				250,224
Cumulative translation adjustment and foreign currency exchange hedge, net of tax	(24,367)					(24,367)
Stock-based compensation	29,864		29,864
Exercise of stock options	672		672
Withholding tax payments on restricted stock vesting and stock option exercises	(23,404)		(23,404)
Repurchases of common stock	(87,540)			(87,540)
Treasury stock reclassification			8,074	(8,074)
Cash dividend on common stock	(105,665)				(105,665)
Ending Balance at Dec. 31, 2022	$ 1,081,093	$ 123	$ 345,468	$ (328,326)	$ 1,101,525	$ (37,697)