CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (DEFICIT) - USD ($) $ in Thousands	Common stock [Member]	Additional paid-in capital [Member]	Retained earnings (deficit) [Member]	Accumulated other comprehensive income (loss) [Member]	Total
Balance at beginning of period at Dec. 31, 2022	$ 624	$ 1,311,488	$ (2,375,860)	$ 2,996	$ (1,060,752)
Balance (in shares) at Dec. 31, 2022	62,353,000
Net Income (Loss)			516,885		516,885
Other comprehensive income (loss)				18,898	18,898
Issuance of common stock under employee benefit plans, net of forfeitures and shares withheld to cover taxes		5,293			5,293
Issuance of common stock under employee benefit plans, net of forfeitures and shares withheld to cover taxes, shares	8,000
Net issuance of common stock upon exercise of stock options		10,255			10,255
Net issuance of common stock upon exercise of stock options, shares	35,000
Share-based compensation		6,980			6,980
Share repurchases, including fees	$ (14)	(28,740)	(1,082,707)		$ (1,111,461)
Share repurchases, including fees, shares	(1,357,000)				(1,357,000)
Excise tax on net share repurchases			(11,115)		$ (11,115)
Balance at end of period at Mar. 31, 2023	$ 610	1,305,276	(2,952,797)	21,894	(1,625,017)
Balance (in shares) at Mar. 31, 2023	61,039,000
Balance at beginning of period at Dec. 31, 2023	$ 591	1,352,275	(3,131,532)	39,388	$ (1,739,278)	[1]
Balance (in shares) at Dec. 31, 2023	59,073,000				59,072,792
Net Income (Loss)			547,238		$ 547,238
Other comprehensive income (loss)				7,176	7,176
Issuance of common stock under employee benefit plans, net of forfeitures and shares withheld to cover taxes		5,607			5,607
Issuance of common stock under employee benefit plans, net of forfeitures and shares withheld to cover taxes, shares	6,000
Net issuance of common stock upon exercise of stock options	$ 2	52,414			52,416
Net issuance of common stock upon exercise of stock options, shares	165,000
Share-based compensation		6,548			6,548
Share repurchases, including fees	$ (3)	(6,088)	(263,928)		$ (270,019)
Share repurchases, including fees, shares	(262,000)				(262,000)
Excise tax on net share repurchases			(886)		$ (886)
Balance at end of period at Mar. 31, 2024	$ 590	$ 1,410,756	$ (2,849,108)	$ 46,564	$ (1,391,198)
Balance (in shares) at Mar. 31, 2024	58,982,000				58,982,123

[1] The balance sheet at December 31, 2023, has been derived from the audited consolidated financial statements at that date but does not include all of the information and footnotes required by United States generally accepted accounting principles for complete financial statements.