Commitments and Contingencies - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Lessee, Lease, Description [Line Items]
Operating right-of-use asset		$ 39,900,000
Total lease liability		41,900,000
Lease liability	$ 45,879,000
Current Headquarters
Lessee, Lease, Description [Line Items]
Discount rate (as a percent)	12.00%
Operating right-of-use asset	$ 37,680,000	39,890,000
Total lease liability	47,220,000
Operating lease expense	7,700,000
Operating lease liability current	1,300,000
Operating lease cost		300,000
Lease liability	$ 45,900,000	$ 41,905,000
Building | Future Headquarters
Lessee, Lease, Description [Line Items]
Lease term	12 years
Future monthly rent expense	$ 600,000
Annual rent increase (as a percent)	3.00%
Building | Current Headquarters
Lessee, Lease, Description [Line Items]
Annual rent increase (as a percent)	3.00%
Monthly rent expense	$ 24,100