Income Taxes - Provision for (Benefit from) Income Taxes (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 27, 2024	Dec. 29, 2023	Dec. 30, 2022
Current:
U.S. federal income tax	$ 0.1	$ 0.1	$ 0.3
State	0.7	1.0	0.7
Non-U.S.	24.8	20.8	16.6
Total	25.6	21.9	17.6
Deferred:
U.S. federal income tax	0.3	(1.1)	0.0
State	0.2	(0.2)	0.0
Non-U.S.	3.0	(2.5)	2.5
Total	3.5	(3.8)	2.5
Provision for income taxes	$ 29.1	$ 18.1	$ 20.1