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Commitments and Contingencies - Maturity of Operating Lease Liabilities (Details)
$ in Thousands
Sep. 30, 2021
USD ($)
Commitments and Contingencies Disclosure [Abstract]  
2022 $ 2,140
2023 2,096
2024 1,764
2025 677
2026 671
Thereafter 1,759
Total 9,107
Less: amount representing interest 577
Present value of future lease payments $ 8,530