Consolidated Statements of Stockholders' Deficit - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Treasury Stock
Common stock, beginning balance (in shares) at Dec. 31, 2020		16,452,000
Stockholders' equity balance, beginning of the period at Dec. 31, 2020	$ (354,651)	$ 249	$ 257,625	$ (55,553)	$ (55)	$ (556,917)
Treasury stock, beginning of period (in shares) at Dec. 31, 2020						8,430,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	54,965			54,965
Other comprehensive gain (loss)	(2)				(2)
Reissuance of treasure stock (in shares)		597,000				597,000
Reissuance of treasury stock	22,511	$ 1	(1,542)			$ 24,052
Net use of shares for stock plans (in shares)		146,000
Repurchase of restricted shares for taxes (in shares)		(17,000)
Repurchase of restricted shares for taxes	(1,403)		(1,403)
Stock-based compensation	5,612		5,612
Tax payments for share settlement of restricted stock units	(9,783)		(9,783)
Common stock, ending balance (in shares) at Jun. 30, 2021		17,178,000
Stockholders' equity balance, ending of the period at Jun. 30, 2021	(282,751)	$ 250	250,509	(588)	(57)	$ (532,865)
Treasury stock, end of period (in shares) at Jun. 30, 2021						7,833,000
Common stock, beginning balance (in shares) at Mar. 31, 2021		17,142,000
Stockholders' equity balance, beginning of the period at Mar. 31, 2021	(317,402)	$ 250	247,498	(29,950)	(56)	$ (535,144)
Treasury stock, beginning of period (in shares) at Mar. 31, 2021						7,891,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	29,362			29,362
Other comprehensive gain (loss)	(1)				(1)
Reissuance of treasure stock (in shares)		58,000				58,000
Reissuance of treasury stock	3,027		748			$ 2,279
Net use of shares for stock plans (in shares)		(20,000)
Repurchase of restricted shares for taxes (in shares)		(2,000)
Repurchase of restricted shares for taxes	(183)		(183)
Stock-based compensation	2,518		2,518
Tax payments for share settlement of restricted stock units	(72)		(72)
Common stock, ending balance (in shares) at Jun. 30, 2021		17,178,000
Stockholders' equity balance, ending of the period at Jun. 30, 2021	$ (282,751)	$ 250	250,509	(588)	(57)	$ (532,865)
Treasury stock, end of period (in shares) at Jun. 30, 2021						7,833,000
Common stock, beginning balance (in shares) at Dec. 31, 2021	17,163,946	17,164,000
Stockholders' equity balance, beginning of the period at Dec. 31, 2021	$ (242,807)	$ 250	256,189	35,415	(59)	$ (534,602)
Treasury stock, beginning of period (in shares) at Dec. 31, 2021						7,828,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	48,812			48,812
Other comprehensive gain (loss)	(4)				(4)
Purchase of common stock (in shares)		1,501,000				1,501,000
Purchase of common stock	$ (104,053)					$ (104,053)
Reissuance of treasure stock (in shares)	177,984	178,000				178,000
Reissuance of treasury stock	$ 241		(8,093)			$ 8,334
Net use of shares for stock plans (in shares)		14,000
Repurchase of restricted shares for taxes (in shares)		(32,000)
Repurchase of restricted shares for taxes	(2,353)		(2,353)
Stock-based compensation	8,327		8,327
Dividends on common stock	(15,866)		96	(15,962)
Tax payments for share settlement of restricted stock units	$ (953)		(953)
Common stock, ending balance (in shares) at Jun. 30, 2022	15,823,390	15,823,000
Stockholders' equity balance, ending of the period at Jun. 30, 2022	$ (308,656)	$ 250	253,213	68,265	(63)	$ (630,321)
Treasury stock, end of period (in shares) at Jun. 30, 2022						9,151,000
Common stock, beginning balance (in shares) at Mar. 31, 2022		16,746,000
Stockholders' equity balance, beginning of the period at Mar. 31, 2022	(265,172)	$ 250	250,150	52,516	(60)	$ (568,028)
Treasury stock, beginning of period (in shares) at Mar. 31, 2022						8,245,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	23,962			23,962
Other comprehensive gain (loss)	(3)				(3)
Purchase of common stock (in shares)		913,000				913,000
Purchase of common stock	(62,608)					$ (62,608)
Reissuance of treasure stock (in shares)		7,000				7,000
Reissuance of treasury stock	0		(315)			$ 315
Net use of shares for stock plans (in shares)		(8,000)
Repurchase of restricted shares for taxes (in shares)		(9,000)
Repurchase of restricted shares for taxes	(608)		(608)
Stock-based compensation	3,986		3,986
Dividends on common stock	$ (8,213)			(8,213)
Common stock, ending balance (in shares) at Jun. 30, 2022	15,823,390	15,823,000
Stockholders' equity balance, ending of the period at Jun. 30, 2022	$ (308,656)	$ 250	$ 253,213	$ 68,265	$ (63)	$ (630,321)
Treasury stock, end of period (in shares) at Jun. 30, 2022						9,151,000