Consolidated Statements of Stockholders' Deficit - USD ($) $ in Thousands	Total	Cumulative Effect, Period Of Adoption, Adjustment	Common Stock	Additional Paid-in Capital	Retained Earnings (Accumulated Deficit)	Retained Earnings (Accumulated Deficit) Cumulative Effect, Period Of Adoption, Adjustment	Accumulated Other Comprehensive Loss	Treasury Stock
Common stock, shares, outstanding, beginning (in shares) at Dec. 31, 2018			17,644,000
Stockholders' equity, beginning of the period at Dec. 31, 2018	$ (202,273)	$ (5,030)	$ 250	$ 237,726	$ 10,414	$ (5,030)	$ (60)	$ (450,603)
Treasury stock, shares, beginning (in shares) at Dec. 31, 2018								7,341,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accounting Standards Update [Extensible Enumeration]	Accounting Standards Update 2016-02 [Member]
Net income (loss)	$ 104,346				104,346
Other comprehensive gain	2						2
Purchase of common stock (in shares)			(1,348,000)					(1,348,000)
Purchase of common stock	$ (111,697)							$ (111,697)
Reissuance of treasury stock (in shares)	285,302		285,000					285,000
Reissuance of treasury stock	$ 11,969		$ (1)	(520)				$ 12,490
Net issuance of shares for stock plans (in shares)			30,000
Repurchase of restricted shares (in shares)			(30,000)
Repurchase of restricted shares for taxes	(2,728)			(2,728)
Stock-based compensation	10,808			10,808
Dividends on common stock	(47,095)			982	(48,077)
Tax payments for share settlement of restricted stock units	(76)			(76)
Common stock, shares, outstanding, ending (in shares) at Dec. 31, 2019			16,522,000
Stockholders' equity, ending of the period at Dec. 31, 2019	$ (241,774)	$ (497)	$ 249	246,192	61,653	$ (497)	(58)	$ (549,810)
Treasury stock, shares, ending (in shares) at Dec. 31, 2019								8,404,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accounting Standards Update [Extensible Enumeration]	Accounting Standards Update 2016-13 [Member]
Net income (loss)	$ (103,994)				(103,994)
Other comprehensive gain	3						3
Purchase of common stock (in shares)			(460,000)					(460,000)
Purchase of common stock	$ (26,527)							$ (26,527)
Reissuance of treasury stock (in shares)	433,477		433,000					433,000
Reissuance of treasury stock	$ 20,522			1,102				$ 19,420
Net issuance of shares for stock plans (in shares)			8,000
Repurchase of restricted shares (in shares)			(36,000)
Repurchase of restricted shares for taxes	(2,479)			(2,479)
Stock-based compensation	12,508			12,508
Dividends on common stock	(12,208)			507	(12,715)
Tax payments for share settlement of restricted stock units	$ (205)			(205)
Common stock, shares, outstanding, ending (in shares) at Dec. 31, 2020	16,452,174		16,452,000
Stockholders' equity, ending of the period at Dec. 31, 2020	$ (354,651)		$ 249	257,625	(55,553)		(55)	$ (556,917)
Treasury stock, shares, ending (in shares) at Dec. 31, 2020	8,429,948							8,430,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	$ 97,864				97,864
Other comprehensive gain	(4)						(4)
Purchase of common stock (in shares)			(59,000)					(59,000)
Purchase of common stock	$ (4,480)							$ (4,480)
Reissuance of treasury stock (in shares)	660,718		661,000					661,000
Reissuance of treasury stock	$ 25,337		$ 1	(1,459)				$ 26,795
Net issuance of shares for stock plans (in shares)			132,000
Repurchase of restricted shares (in shares)			(22,000)
Repurchase of restricted shares for taxes	(1,771)			(1,771)
Stock-based compensation	11,577			11,577
Dividends on common stock	(6,896)			0	(6,896)
Tax payments for share settlement of restricted stock units	$ (9,783)			(9,783)
Common stock, shares, outstanding, ending (in shares) at Dec. 31, 2021	17,163,946		17,164,000
Stockholders' equity, ending of the period at Dec. 31, 2021	$ (242,807)		$ 250	$ 256,189	$ 35,415		$ (59)	$ (534,602)
Treasury stock, shares, ending (in shares) at Dec. 31, 2021	7,828,329							7,828,000