Pension Benefits - Components of Comprehensive Pension Expense (Details) - Pension Plans - USD ($) $ in Millions |
12 Months Ended | ||
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Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
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| Defined Benefit Plan Disclosure [Line Items] | |||
| Service Cost Earned During the Year | $ 0.0 | $ 0.0 | $ 0.0 |
| Interest Cost on Projected Benefit Obligation | 0.0 | 0.0 | 8.4 |
| Expected Return on Plan Assets | 0.0 | 0.0 | (7.9) |
| Amortization of Prior Service Cost | 0.0 | 0.0 | (0.4) |
| Amortization of Actuarial Loss | 0.0 | 0.0 | 0.0 |
| Settlement (Income) Expense | 0.0 | (2.6) | 70.2 |
| Pension (Income) Expense Recognized in Consolidated Statements of Income (Loss) | 0.0 | (2.6) | 71.1 |
| Unrecognized Pension Loss Arising During the Year | 0.0 | 0.0 | 0.0 |
| Prior Service Cost Arising During the Year | 0.0 | 0.0 | 0.0 |
| Amortization of Prior Service Cost | 0.0 | 0.0 | 0.0 |
| Amortization of Accumulated Unrecognized Pension Loss | 0.0 | 0.0 | 0.0 |
| Comprehensive Pension (Income) Expense | $ 0.0 | $ (2.6) | $ 71.1 |
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- Definition Defined Benefit Plan, Comprehensive Pension Expense (Benefit) 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 prior service cost (credit) 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 Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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, before tax, of cost (credit) of benefit change attributable to participants' prior service from plan amendment or plan initiation of defined benefit plan, that has not been recognized in net periodic benefit cost (credit). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, before tax, of reclassification adjustment from accumulated other comprehensive (income) loss for prior service cost (credit) of defined benefit plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, before tax, of gain (loss) for (increase) decrease in value of benefit obligation for change in actuarial assumptions and increase (decrease) in value of plan assets from experience different from that assumed of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, before tax, of reclassification adjustment from accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Details
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