Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Total	Impact of Adoption	Common Stock	Additional Paid-in Capital	Treasury Stock	Accumulated Other Comprehensive Income (Loss)	Accumulated Other Comprehensive Income (Loss) Impact of Adoption	Accumulated (Deficit)
Beginning balance (in shares) at Dec. 31, 2019			57,443,282
Beginning balance (in shares) at Dec. 31, 2019					(23,952,756)
Beginning balance at Dec. 31, 2019	$ 27,260		$ 574	$ 1,008,701	$ (437,962)	$ 0		$ (544,053)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Purchase of treasury stock (in shares)					(2,682,042)
Purchase of treasury stock	(30,626)				$ (30,626)
Exercise of stock options (in shares)			2,147,140		112,469
Exercise of stock options	12,815		$ 22	14,075	$ (1,282)
Reclass of stock options from liability to equity classification	37,661			37,661
Private placement (in shares)					68,857
Private placement	444			(813)	$ 1,257
Net income	149,221							149,221
Ending balance (in shares) at Dec. 31, 2020			59,590,422
Ending balance (in shares) at Dec. 31, 2020					(26,678,410)
Ending balance at Dec. 31, 2020	196,775	$ (8,047)	$ 596	1,059,624	$ (468,613)	0	$ (8,047)	(394,832)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of stock options (in shares)			669,836		7,132
Exercise of stock options	2,418		$ 6	2,678	$ (266)
Net income	101,577							101,577
Exercise of stock warrants (in shares)			570,595
Exercise of stock warrants	13,898		$ 6	13,892
Stock compensation expense	$ 8,094			8,094
Ending balance (in shares) at Dec. 31, 2021	34,145,311		60,830,853
Ending balance (in shares) at Dec. 31, 2021	(26,685,542)				(26,685,542)
Ending balance at Dec. 31, 2021	$ 314,715	$ (8,214)	$ 608	1,084,288	$ (468,879)	(8,047)	$ (8,214)	(293,255)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of stock options (in shares)			445,904
Exercise of stock options	6,726		$ 5	6,721
Net income	54,348							54,348
Exercise of stock warrants (in shares)			2,622
Exercise of stock warrants	64			64
Stock compensation expense	$ 14,628			14,628
Ending balance (in shares) at Dec. 31, 2022	34,593,837		61,279,379
Ending balance (in shares) at Dec. 31, 2022	(26,685,542)				(26,685,542)
Ending balance at Dec. 31, 2022	$ 382,267		$ 613	$ 1,105,701	$ (468,879)	$ (16,261)		$ (238,907)