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v3.21.2

Debt (Parenthetical) (Details) | 9 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 30, 2021 | Dec. 31, 2020 | Feb. 24, 2021 | Sep. 30, 2020
6.50% Exchangeable Senior Notes due 2026 |  |  |  |
Line Of Credit Facility [Line Items] |  |  |  |
Stated interest rate | 6.50% |  |  |
6.00% Senior Notes due 2026 |  |  |  |
Line Of Credit Facility [Line Items] |  |  |  |
Stated interest rate | 6.00% | 6.00% |  |
5.875% Senior Notes due 2024 |  |  |  |
Line Of Credit Facility [Line Items] |  |  |  |
Stated interest rate | 5.875% | 5.875% |  |
5.125% Senior Notes due 2023 |  |  |  |
Line Of Credit Facility [Line Items] |  |  |  |
Stated interest rate | 5.125% | 5.125% |  |
5.875% Senior Notes due 2022 |  |  |  |
Line Of Credit Facility [Line Items] |  |  |  |
Stated interest rate | 5.875% | 5.875% |  |
Convertible Debt | 6.50% Exchangeable Senior Notes due 2026 |  |  |  |
Line Of Credit Facility [Line Items] |  |  |  |
Stated interest rate | 6.50% | 6.50% | 6.50% |
Debt instrument maturity year | 2026 | 2026 |  |
Senior Notes | 6.00% Senior Notes due 2026 |  |  |  |
Line Of Credit Facility [Line Items] |  |  |  |
Stated interest rate | 6.00% | 6.00% |  |
Debt instrument maturity year | 2026 | 2026 |  |
Senior Notes | 5.875% Senior Notes due 2024 |  |  |  |
Line Of Credit Facility [Line Items] |  |  |  |
Stated interest rate | 5.875% | 5.875% |  | 5.875%
Debt instrument maturity year | 2024 | 2024 |  |
Senior Notes | 5.125% Senior Notes due 2023 |  |  |  |
Line Of Credit Facility [Line Items] |  |  |  |
Stated interest rate | 5.125% | 5.125% |  | 5.125%
Debt instrument maturity year | 2023 | 2023 |  |
Senior Notes | 5.875% Senior Notes due 2022 |  |  |  |
Line Of Credit Facility [Line Items] |  |  |  |
Stated interest rate | 5.875% | 5.875% |  |
Debt instrument maturity year | 2022 | 2022 |  |

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