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Defined Benefit Plans - Components of Net Periodic Benefit Income for Pension Benefits (Detail) - Net Periodic Benefit Cost [Member] - Pension Benefits [Member] - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 29, 2024
Jul. 01, 2023
Jun. 29, 2024
Jul. 01, 2023
Defined Benefit Plan Disclosure [Line Items]        
Service cost $ 0.0 $ 0.1 $ 0.0 $ 0.1
Interest cost 6.2 6.7 12.3 13.6
Expected return on plan assets (8.3) (7.1) (16.5) (14.3)
Net periodic benefit income $ (2.1) $ (0.3) $ (4.2) $ (0.6)