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Leases - Summary of Future Minimum Lease Payments for Non-cancellable Operating Lease (Detail)
$ in Thousands
Sep. 30, 2019
USD ($)
Leases [Abstract]  
2019 $ 21,285
2020 16,978
2021 14,159
2022 11,482
2023 8,215
Thereafter 22,531
Total $ 94,650