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Debt Facilities - Interest Charges (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Debt Disclosure [Abstract]        
Interest expense $ 87,231 $ 108,480 $ 176,912 $ 215,818
Interest capitalized 6,684 6,880 12,792 12,911
Interest charges incurred $ 93,915 $ 115,360 $ 189,704 $ 228,729