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Leases - Summary of Maturities of Operating Lease Liabilities (Detail)
$ in Thousands
Sep. 30, 2019
USD ($)
Leases [Abstract]  
2019 (excluding the nine months ended September 30, 2019) $ 2,682
2020 9,317
2021 6,665
2022 4,707
2023 2,663
Thereafter 6,552
Total lease payments 32,586
Less imputed interest (3,307)
Total $ 29,279