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Leases - Maturity of Lease Liabilities (Details)
$ in Thousands
Jun. 30, 2019
USD ($)
Leases [Abstract]  
2019 $ 5,508
2020 9,682
2021 8,071
2022 6,210
2023 4,412
Thereafter 13,296
Total undiscounted lease payments 47,179
Less: interest 12,677
Present value of lease liabilities $ 34,502