Debt - Schedule of Notes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Debt Issuance Costs
Amortization of debt discount and debt issuance costs	$ 785	$ 847	$ 995
Long-term Debt, Unclassified [Abstract]
Beginning balance	251,205
Ending balance	205,272	251,205
Senior Notes
2025 Senior Notes
Beginning balance	200,000
Conversion	(55,420)
Ending balance	144,580	200,000
Discount
Beginning balance	(39,537)
Amortization of debt discount and debt issuance costs	6,639
Conversion	10,151
Ending balance	(22,747)	(39,537)
Debt Issuance Costs
Beginning balance	(4,300)
Amortization of debt discount and debt issuance costs	723
Conversion	1,104
Ending balance	(2,473)	(4,300)
Long-term Debt, Unclassified [Abstract]
Beginning balance	156,163
Amortization of debt discount and debt issuance costs	7,362
Conversion	(44,165)
Ending balance	$ 119,360	$ 156,163