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Chapter 11 Proceedings - Summary of Liabilities Subject to Compromise (Detail)
$ in Thousands
Sep. 30, 2020
USD ($)
Debt subject to compromise:  
Borrowings under credit facility $ 436,000
Lease liabilities 140,580
Accrued interest 47,636
Accounts payable 19,912
Other accrued liabilities 5,306
Other liabilities 4,221
Total liabilities subject to compromise 2,653,655
3.45% Senior Notes due 2023 [Member]  
Debt subject to compromise:  
Senior Notes 250,000
7.875% Senior Notes due 2025 [Member]  
Debt subject to compromise:  
Senior Notes 500,000
5.70% Senior Notes due 2039 [Member]  
Debt subject to compromise:  
Senior Notes 500,000
4.875% Senior Notes due 2043 [Member]  
Debt subject to compromise:  
Senior Notes $ 750,000