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Leases Maturities of Operating Lease Liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Leases [Abstract]    
2021 $ 2,667  
2022 5,056  
2023 5,138  
2024 5,077  
2025 5,013  
Thereafter 30,324  
Total undiscounted cash flows 53,275  
Imputed interest (14,567)  
Total operating lease liabilities $ 38,708 $ 9,088