Income (Loss) Per Share - Basic and Diluted (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income (Loss) Per Share
Net income (loss), Basic	$ 26,038	$ (8,391)	$ (78,733)
Net income (loss), Diluted	$ 26,038	$ (8,391)	$ (78,733)
Net income (loss) per common share:
Basic (in dollars per share)	$ 0.53	$ (0.17)	$ (1.66)
Diluted (in dollars per share)	$ 0.49	$ (0.17)	$ (1.66)
Weighted average shares reconciliation
Basic weighted average shares outstanding	49,073	48,362	47,482
Effect of potentially dilutive share-based awards	1,090
Dilutive effect of convertible notes	3,480
Diluted weighted average shares outstanding	53,643	48,362	47,482