Unaudited Consolidated Statements of Shareholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock [Member]	Additional Paid in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Loss [Member]	Treasury Stock [Member]
Beginning balance, value at Dec. 31, 2022	$ 1,182,607	$ 625	$ 576,622	$ 1,196,968	$ (3,703)	$ (587,905)
Beginning balance, shares at Dec. 31, 2022		62,518				4,651
Vesting of restricted stock, shares		7
Stock-based compensation	32,344		32,344
Repurchases of common stock	(626)					$ (626)
Repurchases of common stock, shares						2
Net income	119,296			119,296
Other comprehensive earnings (loss), net of tax	850				850
Ending balance, value at Mar. 31, 2023	1,334,471	$ 625	608,966	1,316,264	(2,853)	$ (588,531)
Ending balance, shares at Mar. 31, 2023		62,525				4,653
Beginning balance, value at Dec. 31, 2023	1,303,036	$ 627	724,493	1,469,981	(1,039)	$ (891,026)
Beginning balance, shares at Dec. 31, 2023		62,675				6,147
Vesting of restricted stock		$ 0
Vesting of restricted stock, shares		44
Stock-based compensation	(89,675)		(89,675)
Repurchases of common stock	(3,052)					$ (3,052)
Repurchases of common stock, shares						15
Dividends declared	(19,977)			(19,977)
Net income	247,187			247,187
Other comprehensive earnings (loss), net of tax	544				544
Ending balance, value at Mar. 31, 2024	$ 1,438,063	$ 627	$ 634,818	$ 1,697,191	$ (495)	$ (894,078)
Ending balance, shares at Mar. 31, 2024		62,719				6,162