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Commitments and Contingent Liabilities - Future Minimum Lease Payments under Operating Leases (Detail)
$ in Thousands
Dec. 31, 2018
USD ($)
Commitments and Contingencies Disclosure [Abstract]  
2018 $ 31,564
2019 22,210
2020 17,331
2021 13,667
2022 10,324
Thereafter 12,607
Subtotal 107,703
Sublease income (25)
Total minimum lease payments $ 107,678