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Commitments and Contingent Liabilities - Summary of Minimum Annual Rental Commitments for Operating Leases (Details)
$ in Thousands
Sep. 30, 2019
USD ($)
Commitments And Contingencies Disclosure [Abstract]  
2019 $ 1,166
2020 4,455
2021 3,798
2022 2,230
2023 1,294
Thereafter 3,303
Total $ 16,246