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Leases - Maturity of remaining lease liabilities (Details)
$ in Thousands
Dec. 31, 2019
USD ($)
Leases [Abstract]  
2020 $ 16,586
2021 17,136
2022 16,338
2023 16,377
2024 11,619
2025 and thereafter 28,018
Total lease payments 106,074
Less: Interest (10,187)
Present value of lease liabilities $ 95,887