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Other (Income) Expense, Net - Components of Other (Income) Expense, Net (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 27, 2025
Dec. 28, 2024
Dec. 30, 2023
Other Income and Expenses [Abstract]      
Defined benefit plan cost (income) $ 0.7 $ 11.7 $ (1.6)
Interest income (6.5) (5.1) (14.2)
Foreign currency losses (gains) 3.4 4.7 (3.4)
Other items, net (1.7) 0.6 (0.3)
Total other (income) expense, net $ (4.1) $ 11.9 $ (19.5)