CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Loss, net	Retained Earnings	Noncontrolling Interest in Subsidiary
Beginning balance (shares) at Dec. 31, 2020		36,177
Beginning balance at Dec. 31, 2020	$ 154,909	$ 4	$ 310,388	$ (1,280)	$ (154,737)	$ 534
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Vesting of restricted stock (shares)		477
Vesting of restricted stock	(2,230)		(2,230)
Equity compensation	3,486		3,486
Foreign currency translation adjustment, net of taxes	(30)			(30)
Acquisition of WSG (shares)		308
Acquisition of WSG	5,000		5,000
Net income	30,996				30,996
Ending balance (shares) at Jun. 30, 2021		36,962
Ending balance at Jun. 30, 2021	192,131	$ 4	316,644	(1,310)	(123,741)	534
Beginning balance (shares) at Mar. 31, 2021		36,495
Beginning balance at Mar. 31, 2021	173,674	$ 4	309,711	(1,286)	(135,289)	534
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Vesting of restricted stock (shares)		159
Vesting of restricted stock	(204)		(204)
Equity compensation	2,137		2,137
Foreign currency translation adjustment, net of taxes	(24)			(24)
Acquisition of WSG (shares)		308
Acquisition of WSG	5,000		5,000
Net income	11,548				11,548
Ending balance (shares) at Jun. 30, 2021		36,962
Ending balance at Jun. 30, 2021	192,131	$ 4	316,644	(1,310)	(123,741)	534
Beginning balance (shares) at Dec. 31, 2021		37,024
Beginning balance at Dec. 31, 2021	297,528	$ 4	321,552	(1,293)	(22,735)	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Vesting of restricted stock (shares)		499
Vesting of restricted stock	(5,267)		(5,267)
Equity compensation	3,715		3,715
Foreign currency translation adjustment, net of taxes	(42)			(42)
Net income	114,877				114,877
Ending balance (shares) at Jun. 30, 2022		37,523
Ending balance at Jun. 30, 2022	410,811	$ 4	320,000	(1,335)	92,142	0
Beginning balance (shares) at Mar. 31, 2022		37,443
Beginning balance at Mar. 31, 2022	356,073	$ 4	318,125	(1,304)	39,248	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Vesting of restricted stock (shares)		80
Vesting of restricted stock	(239)		(239)
Equity compensation	2,114		2,114
Foreign currency translation adjustment, net of taxes	(31)			(31)
Net income	52,894				52,894
Ending balance (shares) at Jun. 30, 2022		37,523
Ending balance at Jun. 30, 2022	$ 410,811	$ 4	$ 320,000	$ (1,335)	$ 92,142	$ 0