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Implemented Accounting Pronouncements - Summary of Maturities of Operating Lease Payments (Detail)
$ in Thousands
Mar. 31, 2019
USD ($)
Lessor Operating Lease Payments Fiscal Year Maturity [Abstract]  
2019 $ 68,046
2020 31,233
2021 10,180
2022 2,158
2023 595
Thereafter 63
Operating lease, payments to be received $ 112,275