Pensions and Post-Retirement Benefit Plans - Summary of Components of Net Periodic Benefit Cost for Pension Plans (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
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| Retirement Benefits [Abstract] | ||||
| Service cost | $ 0.0 | $ 1.3 | $ 0.1 | $ 1.6 |
| Interest cost | 0.6 | 0.7 | 1.2 | 1.9 |
| Expected return on plan assets | (0.5) | (0.5) | (1.0) | (1.3) |
| Amortization of net loss | 0.3 | 0.2 | 0.5 | 0.6 |
| Settlement | (0.0) | (0.0) | (0.0) | 29.0 |
| Net periodic benefit cost | 0.4 | 1.7 | 0.8 | 31.8 |
| Defined contribution plan expense | $ 1.7 | $ 1.2 | $ 4.6 | $ 4.5 |
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- References No definition available.
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- Definition Amount of gain (loss) recognized in net periodic benefit (cost) credit of defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of expected return (loss) recognized in net periodic benefit (cost) credit, calculated based on expected long-term rate of return and market-related value of plan assets of defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of cost recognized for passage of time related to defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of net periodic benefit cost (credit) for defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of gain (loss) recognized in net periodic benefit (cost) credit from irrevocable action relieving primary responsibility for benefit obligation and eliminating risk related to obligation and assets used to effect settlement. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of cost for actuarial present value of benefits attributed to service rendered by employee for defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of cost for defined contribution plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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