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Commitments and Contingencies - Future Lease Commitments (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Leases [Abstract]    
2021 $ 3,469  
2022 3,301  
2023 2,813  
2024 2,231  
2025 1,983  
2026 and thereafter 6,128  
Total Lease Commitments 19,925  
Less: Imputed interest (3,238)  
Operating Lease Liabilities $ 16,687 $ 13,443