Income Taxes - Differences Between Reported Provision for (Benefit from) Income Taxes and Income Taxes Computed at U.S. Statutory Federal Income Tax Rate (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 27, 2024	Dec. 29, 2023	Dec. 30, 2022
Income Tax Disclosure [Abstract]
Income tax provision computed at the U.S. statutory federal rate	$ 35.9	$ 3.4	$ 24.7
Effect of tax rates on non-U.S. operations	(31.2)	(70.8)	(71.7)
Provision for uncertain tax positions	(1.0)	1.5	1.7
Non-deductible interest	22.3	23.1	0.7
Foreign exchange	(18.2)	8.1	2.8
Non-deductible intercompany charges	0.0	0.0	0.5
Non-deductible differences	1.3	(0.7)	0.9
Non-taxable income/loss	(2.1)	(0.5)	0.6
Non-deductible impairment charges	0.7	5.4	0.0
Other	2.1	0.8	(3.3)
State tax benefit	0.5	(4.4)	0.1
Other taxes in lieu of income	5.8	3.5	5.5
Increase (decrease) in valuation allowance	13.0	48.7	57.6
Provision for income taxes	$ 29.1	$ 18.1	$ 20.1