Commitments and Contingencies - Future Operating Lease Maturities (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Maturity of Operating Lease Liabilities    
2022 $ 2,480  
2023 2,163  
2024 2,192  
2025 1,502  
Total lease payments 8,337  
Less: imputed interest (1,581)  
Total $ 6,756 $ 8,300