Debt - Equity and Liability Components of the Notes (Details) - USD ($)	Dec. 31, 2022	Dec. 31, 2021	Sep. 17, 2021	Apr. 08, 2021	Feb. 10, 2020	Apr. 15, 2019
Debt Instrument [Line Items]
Principal amount of notes outstanding	$ 398,750,000
Unamortized debt issuance cost	(9,558,000)
Total notes payable	389,192,000	$ 305,845,000
Convertible Debt
Debt Instrument [Line Items]
Principal amount of notes outstanding		398,750,000
Unamortized debt issuance cost		(8,758,000)
Unamortized discount		(84,147,000)
Total notes payable		305,845,000
Convertible Debt | 2024 Notes
Debt Instrument [Line Items]
Principal amount of notes outstanding	13,750,000	13,750,000				$ 80,000,000
Unamortized debt issuance cost	(257,000)	(334,000)				$ (4,900,000)
Unamortized discount		(1,570,000)
Total notes payable	13,493,000	11,846,000
Convertible Debt | 2026 Notes
Debt Instrument [Line Items]
Principal amount of notes outstanding	120,000,000	120,000,000			$ 120,000,000
Unamortized debt issuance cost	(2,511,000)	(2,440,000)			$ (4,200,000)
Unamortized discount		(19,413,000)
Total notes payable	117,489,000	98,147,000
Convertible Debt | 2027 Notes
Debt Instrument [Line Items]
Principal amount of notes outstanding	265,000,000	265,000,000	$ 265,000,000
Unamortized debt issuance cost	(6,790,000)	(5,984,000)
Unamortized discount		(63,164,000)
Total notes payable	$ 258,210,000	$ 195,852,000
Credit Facility | Total
Debt Instrument [Line Items]
Principal amount of notes outstanding			$ 180,000,000	$ 180,000,000
Unamortized debt issuance cost				$ (9,300,000)