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Debt - Principal Payments Due for Debt (Detail) - USD ($)
$ in Thousands
Jun. 30, 2020
Dec. 31, 2019
Debt Disclosure [Abstract]    
2022 $ 761,700  
2023 496,040  
2024 1,628,360  
Thereafter 4,973,830  
Total $ 7,859,930 $ 7,089,520