Debt - Components of Convertible Note (Details) - USD ($)	Dec. 31, 2021	Dec. 31, 2020	May 31, 2020
Debt Instrument [Line Items]
Unamortized debt issuance costs		$ (8,809,000)
Convertible senior notes | Convertible senior notes
Debt Instrument [Line Items]
Principal amount	$ 287,500,000	287,500,000	$ 287,500,000
Unamortized debt issuance costs	(6,033,000)	(5,446,000)
Unamortized debt discount	0	(79,070,000)
Net carrying amount	$ 281,467,000	202,984,000
Carrying amount of the equity component		$ 85,803,000	$ 88,500,000