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Implemented Accounting Pronouncements - Summary of Maturities of Operating Lease Payments (Detail)
$ in Thousands
Sep. 30, 2019
USD ($)
Lessor Operating Lease Payments Fiscal Year Maturity [Abstract]  
2019 $ 35,911
2020 73,282
2021 25,719
2022 7,124
2023 1,861
Thereafter 767
Operating lease, payments to be received $ 144,664