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Leases - Maturity of Lease Liabilities (Details)
$ in Thousands
Mar. 31, 2019
USD ($)
Leases [Abstract]  
2019 $ 8,025
2020 9,142
2021 7,593
2022 6,124
2023 4,403
Thereafter 13,208
Total undiscounted lease payments 48,495
Less: interest 13,370
Present value of lease liabilities $ 35,125