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Pension Plans - Schedule of Defined Benefit Plan Amounts Recognized in Other Comprehensive Income (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss) [Abstract] |  |  |
Net actuarial (loss) / gain | $ (0.1) | $ 7.7 | $ 11.4
Amortization of actuarial loss | 1.2 | 1.3 | 1.8
Actuarial loss recognized due to settlement event | 0.0 | 0.0 | 8.9
Amortization of prior service credit | (0.4) | (0.4) | (0.4)
Total recognized in other comprehensive income | 0.7 | 8.6 | 21.7
Total recognized in net periodic benefit cost and other comprehensive income | 2.1 | 9.6 | $ 13.8
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax [Abstract] |  |  |
Gross actuarial loss | (78.0) | (79.1) |
Gross prior service credit | 9.8 | 10.2 |
Total included in AOCI not yet recognized in the statement of income | $ (68.2) | $ (68.9) |

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