Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt - Schedule of Redemption Prices expressed as Percentages of Principal Amount (Detail)

v3.21.2
Long-Term Debt - Schedule of Redemption Prices expressed as Percentages of Principal Amount (Detail)
 1 Months Ended 6 Months Ended
May 31, 2021
May 31, 2020
Aug. 31, 2018
Jun. 30, 2021
7.875% Senior Notes Due 2025 [Member]        
Debt Instrument Redemption [Line Items]        
Redemption prices, expressed as percentages of principal amount   100.00%    
7.875% Senior Notes Due 2025 [Member] | 2022 [Member]        
Debt Instrument Redemption [Line Items]        
Redemption prices, expressed as percentages of principal amount       103.938%
7.875% Senior Notes Due 2025 [Member] | 2023 [Member]        
Debt Instrument Redemption [Line Items]        
Redemption prices, expressed as percentages of principal amount       101.969%
7.875% Senior Notes Due 2025 [Member] | 2024 and Thereafter [Member]        
Debt Instrument Redemption [Line Items]        
Redemption prices, expressed as percentages of principal amount       100.00%
7.250% Senior Notes Due 2026 [Member]        
Debt Instrument Redemption [Line Items]        
Redemption prices, expressed as percentages of principal amount     100.00%  
7.250% Senior Notes Due 2026 [Member] | 2021 [Member]        
Debt Instrument Redemption [Line Items]        
Redemption prices, expressed as percentages of principal amount       103.625%
7.250% Senior Notes Due 2026 [Member] | 2022 [Member]        
Debt Instrument Redemption [Line Items]        
Redemption prices, expressed as percentages of principal amount       101.813%
7.250% Senior Notes Due 2026 [Member] | 2023 and Thereafter [Member]        
Debt Instrument Redemption [Line Items]        
Redemption prices, expressed as percentages of principal amount       100.00%
4.875% Senior Notes Due 2029 [Member]        
Debt Instrument Redemption [Line Items]        
Redemption prices, expressed as percentages of principal amount 100.00%      
4.875% Senior Notes Due 2029 [Member] | 2024 [Member]        
Debt Instrument Redemption [Line Items]        
Redemption prices, expressed as percentages of principal amount       102.438%
4.875% Senior Notes Due 2029 [Member] | 2025 [Member]        
Debt Instrument Redemption [Line Items]        
Redemption prices, expressed as percentages of principal amount       101.219%
4.875% Senior Notes Due 2029 [Member] | 2026 and thereafter [Member]        
Debt Instrument Redemption [Line Items]        
Redemption prices, expressed as percentages of principal amount       100.00%