Leases - Additional Details of Facility Leases (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Right-of-use assets and lease liabilities
Right-of-use assets	$ 11,910	$ 12,752
Current portion of lease liabilities	3,592	3,492
Operating lease liability, net of current portion	8,812	9,748
Total operating lease liabilities	$ 12,404	$ 13,240
Additional details
Weighted-average remaining life (years)	3 years 2 months 12 days	3 years 4 months 24 days
Weighted-average discount rate	6.90%	6.90%