Indebtedness - Debt Outstanding (Parenthetical) (Detail)	Dec. 31, 2021	Dec. 31, 2020
4.875% Senior Notes Due 2025
Debt Instrument [Line Items]
Percentage of redemption	4.875%	4.875%
5.00% Senior Notes Due 2022
Debt Instrument [Line Items]
Percentage of redemption	5.00%	5.00%
5.00% Senior Notes Due 2023
Debt Instrument [Line Items]
Percentage of redemption	5.00%	5.00%
5.75% Senior Notes Due 2021
Debt Instrument [Line Items]
Percentage of redemption	5.75%	5.75%
5.875% Senior Notes Due 2022
Debt Instrument [Line Items]
Percentage of redemption	5.875%	5.875%
8.25% Senior Notes Due 2029
Debt Instrument [Line Items]
Percentage of redemption	8.25%	8.25%
9.25% Senior Notes Due 2026
Debt Instrument [Line Items]
Percentage of redemption	9.25%	9.25%
5.00% Senior Subordinated Notes Due 2022
Debt Instrument [Line Items]
Percentage of redemption	5.00%	5.00%
5.00% Senior Subordinated Notes Due 2023
Debt Instrument [Line Items]
Percentage of redemption	5.00%	5.00%
5.75% Senior Subordinated Notes Due 2021
Debt Instrument [Line Items]
Percentage of redemption	5.75%	5.75%