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Commitments and Contingencies - Schedule of Minimum Undiscounted Future Rental Payments Not Yet Commenced (Details) - 5403 and 3003 Lease
$ in Thousands
Sep. 30, 2021
USD ($)
Lessee, Operating Lease, Not yet Commenced, Description [Abstract]  
2021 (remainder) $ 215
2022 1,420
2023 3,704
2024 3,815
2025 3,926
2026 4,047
Thereafter 22,004
Total minimum lease payments $ 39,131