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Leases - Maturities of future lease liabilities (Details)
$ in Thousands
Dec. 31, 2019
USD ($)
Leases  
2020 $ 3,853
2021 6,627
2022 5,012
2023 2,765
2024 2,283
2025 and thereafter 7,273
Total lease payments 27,813
Less: interest 3,688
Total operating lease liabilities $ 24,125