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Operating Leases - Future Minimum Operating Lease Payments (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Leases [Abstract]    
2021 $ 4,236  
2022 4,128  
2023 3,438  
2024 1,929  
2025 787  
Thereafter 0  
Total future minimum lease payments 14,518  
Less imputed interest (959)  
Total $ 13,559 $ 17,499