Income Taxes - Income Before Income Taxes (Detail) - USD ($) $ in Millions	12 Months Ended
Dec. 27, 2024	Dec. 29, 2023	Dec. 30, 2022
Income Tax Disclosure [Abstract]
U.S.	$ 8.5	$ (136.4)	$ 1.0
Non-U.S.	162.2	152.9	116.8
Income before income taxes	$ 170.7	$ 16.5	$ 117.8

Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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+ Details