CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Treasury Stock	Retained Earnings	Accumulated Other Comprehensive Loss
Beginning balance at Dec. 31, 2021	$ 1,568,849	$ 441,369	$ 1,832,144	$ (2,219,990)	$ 2,456,597	$ (941,271)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	21,454				21,454
Other comprehensive income (loss), net of tax	12,061					12,061
Issuance of treasury stock for stock option exercises	13,935		(3,183)	17,118
Issuance of treasury stock for restricted stock units vesting	(17,555)		(43,523)	25,968
Share-based compensation	19,323		19,323
Adjustment of accumulated other comprehensive loss to retained earnings for available-for-sale securities	0				(2,801)	2,801
Ending balance at Mar. 31, 2022	1,618,067	441,369	1,804,761	(2,176,904)	2,475,250	(926,409)
Beginning balance at Dec. 31, 2022	2,056,269	441,369	1,808,308	(2,129,639)	2,847,709	(911,478)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(106,471)				(106,471)
Other comprehensive income (loss), net of tax	23,160					23,160
Share repurchases	(33,986)			(33,986)
Issuance of treasury stock for stock option exercises	2,045		(1,144)	3,189
Issuance of treasury stock for restricted stock units vesting	(20,299)		(51,311)	31,012
Share-based compensation	16,943		16,943
Ending balance at Mar. 31, 2023	$ 1,937,661	$ 441,369	$ 1,772,796	$ (2,129,424)	$ 2,741,238	$ (888,318)