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Leases - Future Minimum Annual Rental Commitments Under Non-Cancelable Operating Leases (Details)
$ in Thousands
Dec. 31, 2019
USD ($)
Leases [Abstract]  
2020 $ 6,374
2021 5,129
2022 4,843
2023 4,735
2024 4,281
Thereafter 17,445
Remaining lease commitments 42,807
Interest (5,648)
Present value of lease liability $ 37,159