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Summary of Significant Accounting Policies - Schedule of Changes in the Components of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Pre-tax | $ (29.0) | $ 135.0 | $ 37.5
Tax | 3.0 | (0.5) | (13.9)
Other comprehensive income (loss) | (26.0) | 134.5 | 23.6
Pension and OPEB liability adjustments |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Pre-tax | (0.8) | (11.2) | 9.9
Tax | 0.4 | 1.8 | (6.4)
Other comprehensive income (loss) | (0.4) | (9.4) | 3.5
Derivative instrument adjustments |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Pre-tax | (10.6) | (16.6) | 61.3
Tax | 2.6 | 0.1 | (15.0)
Other comprehensive income (loss) | (8.0) | (16.5) | 46.3
Foreign currency translation adjustments |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Pre-tax | (17.6) | 35.4 | (33.7)
Tax | 0.0 | 0.1 | 7.5
Other comprehensive income (loss) | (17.6) | 35.5 | (26.2)
Reclassification of foreign currency translation to income |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Pre-tax | 0.0 | 127.4 | 0.0
Tax | 0.0 | (2.5) | 0.0
Other comprehensive income (loss) | $ 0.0 | $ 124.9 | $ 0.0

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