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LONG-TERM DEBT - Principal Repayments of Debt and Capital Lease (Detail) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Debt Disclosure [Abstract]    
2019 $ 64,099  
2020 36,387  
2021 764,980  
2022 54  
2023 248,873  
Future years 2,742,480  
Total $ 3,856,873 $ 1,870,528