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Pension and Post-Employment Benefits - Additional Information (Detail) - USD ($) $ in Millions | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Defined Benefit Plan Disclosure [Line Items] |  |
Post-employment obligations European businesses | $ 9.9 | $ 9.0
Pension asset | 0.0 | 2.4
United Kingdom Plan [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Pension asset | 0.0 | 2.4
Europe [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Post-employment obligations European businesses | $ 3.8 | $ 4.2

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