Derivative Instruments - Derivatives Gains and Losses (Details) - Derivatives not designated as hedging instruments: - USD ($) $ in Millions |
3 Months Ended | |
|---|---|---|
Mar. 31, 2025 |
Mar. 31, 2024 |
|
| Derivative Instruments, Gain (Loss) [Line Items] | ||
| Total gains (losses) | $ 13.1 | $ (21.7) |
| Commodity derivatives | ||
| Derivative Instruments, Gain (Loss) [Line Items] | ||
| Gains (losses) on derivatives | 15.3 | (21.7) |
| Gain (loss) on derivatives not designated as hedging instruments | 1.6 | (9.0) |
| Interest Rate Swap | ||
| Derivative Instruments, Gain (Loss) [Line Items] | ||
| Gains (losses) on derivatives | (2.2) | 0.0 |
| Gain (loss) on derivatives not designated as hedging instruments | $ (3.4) | $ 0.0 |