Employee benefit plans - Components of Net Periodic Benefit Cost (Detail) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | |||
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Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
Dec. 31, 2024 |
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Defined Benefit Plan Disclosure [Line Items] | |||||
Expected contributions for pension plans in 2025 | $ 16.0 | $ 16.0 | |||
Foreign Pension Plans Defined Benefit | Defined benefit pension plans | |||||
Defined Benefit Plan Disclosure [Line Items] | |||||
Service cost | 1.5 | $ 1.6 | 2.9 | $ 3.3 | |
Interest cost | 5.4 | 4.9 | 10.6 | 9.9 | |
Expected return on plan assets | (5.6) | (5.2) | (10.8) | (10.5) | |
Recognized actuarial losses | 0.6 | 0.6 | 1.0 | 1.2 | |
Total | $ 1.9 | $ 1.9 | $ 3.7 | $ 3.9 | |
U S | Defined benefit pension plans | |||||
Defined Benefit Plan Disclosure [Line Items] | |||||
Benefit obligation | $ 38.6 | ||||
Pension plan assets | 48.9 | ||||
Net pension plan asset | $ 10.3 |
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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 asset, recognized in statement of financial position, for overfunded defined benefit pension and other postretirement plans. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of actuarial present value of benefits attributed to service rendered by employee for defined benefit plan. 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 contributions received and expected to be received by defined benefit plan from employer in current fiscal year. 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 asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee. 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/exampleRef
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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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