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Implemented Accounting Pronouncements - Summary of Maturities of Operating Lease Payments (Detail)
$ in Thousands
Jun. 30, 2019
USD ($)
Lessor Operating Lease Payments Fiscal Year Maturity [Abstract]  
2019 $ 56,096
2020 49,265
2021 17,315
2022 4,119
2023 873
Thereafter 223
Operating lease, payments to be received $ 127,891