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Schedule I - Condensed Parent Only Financial Information - Condensed Statements of Operations (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Condensed Income Statements, Captions [Line Items]      
Revenues $ 3,155,671 $ 3,785,063 $ 3,707,628
Selling, general, and administrative expenses 306,282 175,373 152,493
Depreciation and amortization 238,598 232,573 225,233
Operating income (loss) 67,006 213,674 (1,089,914)
Interest expense, net 234,044 232,077 229,643
Income before income taxes and equity in net income of subsidiaries (167,038) (18,403) (1,319,557)
Provision for income taxes (5,331) 1,353 (168,334)
Net income before equity in net income of subsidiaries (161,707) (19,756) (1,151,223)
Total comprehensive (loss) income (153,616) (15,675) (1,166,293)
Parent Company      
Condensed Income Statements, Captions [Line Items]      
Revenues 0 0 0
Cost of revenues 0 0 0
Selling, general, and administrative expenses 0 0 0
Depreciation and amortization 0 0 0
Total expenses 0 0 0
Operating income (loss) 0 0 0
Interest expense, net 0 0 0
Income before income taxes and equity in net income of subsidiaries 0 0 0
Provision for income taxes 0 0 0
Net income before equity in net income of subsidiaries 0 0 0
Less: net income attributable to noncontrolling interests 0 0 0
Equity in net (loss) income of subsidiaries 96,954 (21,172) (1,157,332)
Other comprehensive income (loss), net tax equity in comprehensive income (loss) of Subsidiaries 8,822 5,497 (8,961)
Total comprehensive (loss) income $ 105,776 $ (15,675) $ (1,166,293)