Derivative Instruments - Schedule of Realized and Unrealized Gains or (Losses) on Derivative Instruments, Net (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
|
| Derivative [Line Items] | ||||
| Total | $ 64.9 | $ (9.6) | $ 70.2 | $ (97.2) |
| Interest rate derivative contracts | ||||
| Derivative [Line Items] | ||||
| Total | 73.9 | (0.4) | 111.0 | (68.3) |
| Foreign currency forward contracts | ||||
| Derivative [Line Items] | ||||
| Total | (0.8) | (2.6) | (14.7) | (6.1) |
| Weather Derivatives | ||||
| Derivative [Line Items] | ||||
| Total | $ (8.2) | $ (6.6) | $ (26.1) | $ (22.8) |