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Leases - Finance Lease Maturity (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Leases [Abstract]    
2020 $ 3,081  
2021 2,969  
2022 2,705  
2023 2,260  
2024 1,635  
Thereafter 1,309  
Total $ 13,959 $ 12,541