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Leases (Maturity of Leases Liabilities on an Undiscounted Basis) (Details)
$ in Thousands
Sep. 30, 2019
USD ($)
Leases [Abstract]  
2019 (excluding the nine months ended September 30, 2019) $ 3,781
2020 12,339
2021 8,997
2022 7,695
2023 6,489
Thereafter 12,461
Total lease payments 51,762
Less: Imputed interest 7,468
Total $ 44,294