Debt - Summary of Information about the Equity and Liability Components of Notes (Details) - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021	Sep. 17, 2021	Apr. 08, 2021	Feb. 10, 2020	Apr. 15, 2019
Debt Instrument [Line Items]
Total long-term portion of notes payable	$ 387,681,000		$ 305,845,000
Contractual interest expense	(2,003,000)	$ (1,017,000)
Amortization of debt issuance costs	(486,000)	(142,000)
Amortization of discount	0	(1,032,000)
Total interest expense	(2,489,000)	$ (2,191,000)
Convertible Notes
Debt Instrument [Line Items]
Principal amount of notes outstanding			398,750,000				$ 80,000,000
Unamortized debt issuance cost			(8,758,000)
Unamortized discount			(84,147,000)
Total long-term portion of notes payable			305,845,000
Convertible Notes | Convertible Senior Notes due 2024
Debt Instrument [Line Items]
Principal amount of notes outstanding	13,750,000		13,750,000
Unamortized debt issuance cost	(391,000)
Unamortized debt issuance cost			(334,000)
Unamortized discount			(1,570,000)
Total long-term portion of notes payable	13,359,000		11,846,000
Convertible Notes | Convertible Senior Notes due 2026
Debt Instrument [Line Items]
Principal amount of notes outstanding	120,000,000		120,000,000			$ 120,000,000
Unamortized debt issuance cost	(3,003,000)
Unamortized debt issuance cost			(2,440,000)
Unamortized discount			(19,413,000)
Total long-term portion of notes payable	116,997,000		98,147,000
Convertible Notes | Convertible Senior Notes due 2027
Debt Instrument [Line Items]
Principal amount of notes outstanding	265,000,000		265,000,000	$ 265,000,000
Unamortized debt issuance cost	(7,675,000)
Unamortized debt issuance cost			(5,984,000)
Unamortized discount			(63,164,000)
Total long-term portion of notes payable	257,325,000		$ 195,852,000
Credit Facility | Owl Rock Credit Agreement
Debt Instrument [Line Items]
Principal amount of notes outstanding	398,750,000				$ 180,000,000
Unamortized debt issuance cost	(11,069,000)
Total long-term portion of notes payable	$ 387,681,000