Consolidated Statement of Shareholders' Equity Statement - USD ($) $ in Thousands	Total	Common Stock [Member]	Paid-in Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Income [Member]
Balances at Dec. 31, 2020	$ 584,250	$ 430	$ 749,050	$ (159,610)	$ (5,620)
Net income	13,060			13,060
Other comprehensive income (loss)	630				630
Purchase of common stock	(2,640)	0	(2,640)
Shares surrendered upon exercise and vesting of equity awards to cover taxes	(1,770)		(1,770)
Non-cash compensation expense	2,440		2,440
Dividends declared	0
Balances at Mar. 31, 2021	595,970	430	747,080	(146,550)	(4,990)
Balances at Dec. 31, 2021	630,850	430	732,490	(102,300)	230
Net income	14,170			14,170
Other comprehensive income (loss)	(2,240)				(2,240)
Purchase of common stock	(9,060)	0	(9,060)
Shares surrendered upon exercise and vesting of equity awards to cover taxes	(970)		(970)
Non-cash compensation expense	2,820		2,820
Dividends declared	(1,740)		(1,740)
Balances at Mar. 31, 2022	$ 633,830	$ 430	$ 723,540	$ (88,130)	$ (2,010)