Debt - Interest Expense (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Debt Disclosure [Abstract]
Gross interest expense	$ 348,427	$ 271,451	$ 268,942
Amortization of debt discounts (premiums), net	(6,741)	3,713	(590)
Amortization of debt issuance costs, net	14,600	13,293	13,243
Interest expense before capitalization	356,286	288,457	281,595
Capitalized amounts	(41,779)	(48,504)	(52,454)
Net interest expense	314,507	239,953	229,141
Total cash paid for interest, net of amounts capitalized	$ 309,390	$ 214,375	$ 205,485