CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Common Stock	Additional Paid-In Capital Accelerated Share Repurchase Agreement ("ASR")	Additional Paid-In Capital	Retained Earnings	Treasury Stock Existing Share Repurchase Program	Treasury Stock Accelerated Share Repurchase Agreement ("ASR")	Treasury Stock	Accumulated Other Comprehensive Income (Loss)	Existing Share Repurchase Program	Accelerated Share Repurchase Agreement ("ASR")	Total
Balances at Dec. 31, 2020	$ 290		$ 342,354	$ 595,932			$ (111,173)	$ 1,190			$ 828,593
Balances (in shares) at Dec. 31, 2020	29,045,000
Balances, Treasury stock (in shares) at Dec. 31, 2020							3,657,000
Increase (Decrease) in Stockholders' Equity
Net income				23,361							23,361
Other comprehensive income (loss), net of tax								804			804
Issuance of common stock under share-based compensation plans	$ 1		(1)
Issuance of common stock under share-based compensation plans (in shares)	12,000
Shares withheld for employee tax remittance on share-based compensation			(165)								(165)
Share-based compensation expense			2,354								2,354
Purchase of treasury stock							$ (1,001)				(1,001)
Purchase of treasury stock (in shares)							15,000
Dividends declared on common stock				(2,037)							(2,037)
Balances at Mar. 31, 2021	$ 291		344,542	617,256			$ (112,174)	1,994			851,909
Balances (in shares) at Mar. 31, 2021	29,057,000
Balances, Treasury stock (in shares) at Mar. 31, 2021							3,672,000
Balances at Dec. 31, 2020	$ 290		342,354	595,932			$ (111,173)	1,190			828,593
Balances (in shares) at Dec. 31, 2020	29,045,000
Balances, Treasury stock (in shares) at Dec. 31, 2020							3,657,000
Increase (Decrease) in Stockholders' Equity
Net income											84,342
Other comprehensive income (loss), net of tax								1,482			1,482
Balances at Jun. 30, 2021	$ 293		338,263	676,179			$ (119,273)	2,672			898,134
Balances (in shares) at Jun. 30, 2021	29,318,000
Balances, Treasury stock (in shares) at Jun. 30, 2021							3,783,000
Balances at Dec. 31, 2020	$ 290		342,354	595,932			$ (111,173)	1,190			828,593
Balances (in shares) at Dec. 31, 2020	29,045,000
Balances, Treasury stock (in shares) at Dec. 31, 2020							3,657,000
Increase (Decrease) in Stockholders' Equity
Purchase of treasury stock										$ (75,000)
Balances at Dec. 31, 2021	$ 294		318,033	801,314			$ (194,273)	3,699			$ 929,067
Balances (in shares) at Dec. 31, 2021	29,360,000
Balances, Treasury stock (in shares) at Dec. 31, 2021							4,493,000				4,492,514
Balances at Mar. 31, 2021	$ 291		344,542	617,256			$ (112,174)	1,994			$ 851,909
Balances (in shares) at Mar. 31, 2021	29,057,000
Balances, Treasury stock (in shares) at Mar. 31, 2021							3,672,000
Increase (Decrease) in Stockholders' Equity
Net income				60,981							60,981
Other comprehensive income (loss), net of tax								678			678
Issuance of common stock under share-based compensation plans	$ 2		(2)
Issuance of common stock under share-based compensation plans (in shares)	261,000
Shares withheld for employee tax remittance on share-based compensation			(9,601)								(9,601)
Share-based compensation expense			3,324								3,324
Purchase of treasury stock							$ (7,099)				(7,099)
Purchase of treasury stock (in shares)							111,000
Dividends declared on common stock				(2,058)							(2,058)
Balances at Jun. 30, 2021	$ 293		338,263	676,179			$ (119,273)	2,672			898,134
Balances (in shares) at Jun. 30, 2021	29,318,000
Balances, Treasury stock (in shares) at Jun. 30, 2021							3,783,000
Balances at Dec. 31, 2021	$ 294		318,033	801,314			$ (194,273)	3,699			$ 929,067
Balances (in shares) at Dec. 31, 2021	29,360,000
Balances, Treasury stock (in shares) at Dec. 31, 2021							4,493,000				4,492,514
Increase (Decrease) in Stockholders' Equity
Net income				69,569							$ 69,569
Other comprehensive income (loss), net of tax								1,624			1,624
Issuance of common stock under share-based compensation plans (in shares)	25,000
Shares withheld for employee tax remittance on share-based compensation			(1,367)								(1,367)
Share-based compensation expense			2,763								2,763
Purchase of treasury stock					$ (16,506)				$ (16,506)
Purchase of treasury stock (in shares)					194,000	214,000
Forward contract for accelerated share repurchase		$ 25,000				$ (25,000)
Dividends declared on common stock				(1,978)							(1,978)
Balances at Mar. 31, 2022	$ 294		344,429	868,905			$ (235,779)	5,323			983,172
Balances (in shares) at Mar. 31, 2022	29,385,000
Balances, Treasury stock (in shares) at Mar. 31, 2022							4,901,000
Balances at Dec. 31, 2021	$ 294		318,033	801,314			$ (194,273)	3,699			$ 929,067
Balances (in shares) at Dec. 31, 2021	29,360,000
Balances, Treasury stock (in shares) at Dec. 31, 2021							4,493,000				4,492,514
Increase (Decrease) in Stockholders' Equity
Net income											$ 172,030
Other comprehensive income (loss), net of tax								1,275			1,275
Purchase of treasury stock (in shares)										214,763
Balances at Jun. 30, 2022	$ 296		340,035	968,417			$ (250,510)	4,974			$ 1,063,212
Balances (in shares) at Jun. 30, 2022	29,615,000
Balances, Treasury stock (in shares) at Jun. 30, 2022							5,109,000				5,109,030
Balances at Mar. 31, 2022	$ 294		344,429	868,905			$ (235,779)	5,323			$ 983,172
Balances (in shares) at Mar. 31, 2022	29,385,000
Balances, Treasury stock (in shares) at Mar. 31, 2022							4,901,000
Increase (Decrease) in Stockholders' Equity
Net income				102,461							102,461
Other comprehensive income (loss), net of tax								(349)			(349)
Issuance of common stock under share-based compensation plans	$ 2		(2)
Issuance of common stock under share-based compensation plans (in shares)	230,000
Shares withheld for employee tax remittance on share-based compensation			(8,270)								(8,270)
Share-based compensation expense			3,878								3,878
Purchase of treasury stock							$ (14,731)				(14,731)
Purchase of treasury stock (in shares)							208,000
Dividends declared on common stock				(2,949)							(2,949)
Balances at Jun. 30, 2022	$ 296		$ 340,035	$ 968,417			$ (250,510)	$ 4,974			$ 1,063,212
Balances (in shares) at Jun. 30, 2022	29,615,000
Balances, Treasury stock (in shares) at Jun. 30, 2022							5,109,000				5,109,030