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Other Comprehensive Income (Loss) - Schedule of Components of Accumulated Other Comprehensive Income (Details) - USD ($) $ in Millions | Sep. 30, 2024 | Jun. 30, 2024 | Dec. 31, 2023 | Sep. 30, 2023 | Jun. 30, 2023 | Dec. 31, 2022
--- | --- | --- | --- | --- | --- | ---
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |
Accumulated other comprehensive income, net of tax | $ 882.3 | $ 898.0 | $ 949.1 | $ 673.0 | $ 1,149.0 | $ 1,179.3
Accumulated other comprehensive income, net of tax |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |
Accumulated other comprehensive income, net of tax | 36.7 | $ 28.3 | 39.1 | $ (87.0) | $ (73.4) | $ (95.4)
Accumulated pension and OPEB liability adjustments |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |
Accumulated other comprehensive loss, income tax (benefit) expense | (4.5) |  | (4.3) |  |  |
Accumulated other comprehensive income, net of tax | (19.8) |  | (20.3) |  |  |
Accumulated unrealized gain on derivative instruments |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |
Accumulated other comprehensive loss, income tax (benefit) expense | 10.9 |  | 12.8 |  |  |
Accumulated other comprehensive income, net of tax | 14.1 |  | 27.9 |  |  |
Accumulated unrealized foreign currency translation adjustments |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |
Accumulated other comprehensive loss, income tax (benefit) expense | (17.8) |  | (14.6) |  |  |
Accumulated other comprehensive income, net of tax | $ 42.4 |  | $ 31.5 |  |  |

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