Commitments and Contingencies - Narrative (Details) - USD ($)			3 Months Ended		9 Months Ended
	Jun. 30, 2020	Jun. 24, 2014	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Lessee, Lease, Description [Line Items]
Right-of-use asset			$ 36,460,000		$ 36,460,000		$ 37,680,000
Lease liability (current)			7,166,000		7,166,000		1,341,000
Operating lease liability, noncurrent			44,093,000		44,093,000		45,879,000
Current Headquarters
Lessee, Lease, Description [Line Items]
Discount rate (as a percent)	12.00%
Right-of-use asset			36,500,000		36,500,000		37,700,000
Total lease liability			51,260,000		51,260,000		47,200,000
Lease liability (current)			7,200,000		7,200,000		1,300,000
Operating lease liability, noncurrent			44,100,000		44,100,000		$ 45,900,000
Operating lease cost			$ 2,000,000	$ 1,900,000	$ 5,700,000	$ 5,900,000
Building | Future Headquarters
Lessee, Lease, Description [Line Items]
Lease term	12 years
Operating Lease, Future Monthly Rent Payment	$ 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%
Minimum monthly rental expense		$ 24,100