Benefit Plans - Amounts Recorded in Consolidated Balance Sheets (Detail) - USD ($) $ in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
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| Defined Benefit Plan Disclosure [Line Items] | ||
| Non-current liabilities | $ (135.6) | $ (131.7) |
| Defined accumulated benefit obligation plans | 121.8 | 119.3 |
| Pension plans | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Current liabilities | (5.2) | (4.4) |
| Non-current liabilities | (114.5) | (112.8) |
| Benefit obligations in excess of the fair value of plan assets | (119.7) | (117.2) |
| Post-retirement | ||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Current liabilities | (1.1) | (1.1) |
| Non-current liabilities | (10.0) | (10.3) |
| Benefit obligations in excess of the fair value of plan assets | $ (11.1) | $ (11.4) |
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- Definition Amount of actuarial present value of benefits attributed to employee service rendered, excluding assumptions about future compensation level. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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. No definition available.
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- Definition Amount of liability, recognized in statement of financial position, for defined benefit pension and other postretirement plans, classified as current. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of liability, recognized in statement of financial position, for defined benefit pension and other postretirement plans. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of liability, recognized in statement of financial position, for defined benefit pension and other postretirement plans, classified as noncurrent. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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