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v3.23.3

Long-term Debt - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Mar. 31, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2022 | Mar. 01, 2022
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt issuance cost | $ 8.5 |  |  | $ 8.5 |  | $ 9.8 |
Interest expense | 13.8 | $ 33.8 |  | 45.5 | $ 110.8 |  |
Net loss on early debt extinguishment | 0.0 | 8.7 |  | 8.8 | 34.5 |  |
Finance lease obligations | 22.1 |  |  | 22.1 |  | 23.6 |
Interest Paid, Capitalized, Investing Activities | $ 14.8 | $ 26.4 |  | $ 56.7 | $ 104.2 |  |
Dividends Payable, Amount Per Share | $ 0.150 |  |  | $ 0.150 |  |  |
3.250% Convertible Senior Notes due March 2028 (2028 Convertible Notes) |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt Instrument, Convertible, If-converted Value in Excess of Principal |  |  |  | $ 99.0 |  |  |
8.500% Senior Secured Notes due December 20242 and 6.375% Senior Secured Notes due March 2025 [Domain] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Net loss on early debt extinguishment |  |  | $ 23.0 |  |  |  |
Senior Notes | 3.250% Convertible Senior Notes due March 2028 (2028 Convertible Notes) |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Stated interest rate | 3.25% |  |  | 3.25% |  |  |
Long-term debt | $ 320.0 |  |  | $ 320.0 |  | $ 320.0 |
Principal amount |  |  |  |  |  |  | $ 320.0
Debt Issuance Costs, Gross |  |  | 11.2 |  |  |  |
Debt Conversion, Converted Instrument, Rate | 1.00% |  |  |  |  |  |
Debt Instrument, Convertible, Conversion Ratio | 50.3816 |  |  |  |  |  |
Debt Instrument, Convertible, Conversion Ratio, Revised | 50.7205 |  |  |  |  |  |
Senior Notes | 6.375% Senior Secured Notes due March 2025 (2025 Notes) |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt repurchase, amount |  |  | 257.4 |  |  |  |
Senior Notes | 8.500% Senior Secured Notes due December 2024 (2024 Peabody Notes) |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt repurchase, amount |  |  | $ 62.6 |  |  |  |

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