Income Taxes - Income Before Income Taxes (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 26, 2025	Dec. 27, 2024	Dec. 29, 2023
Income Tax Disclosure [Abstract]
U.S.	$ 2.4	$ 8.5	$ (136.4)
Non-U.S.	128.5	162.2	152.9
Income before income taxes	$ 130.9	$ 170.7	$ 16.5