Credit Losses - Allowance for Credit Losses Related to Trade Accounts Receivable (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 29, 2024	Dec. 31, 2023	Jan. 01, 2023
Allowance for credit losses:
Beginning balance	$ 8.0	$ 7.7	$ 9.4
Current period provision	0.6	2.1	1.3
Currency exchange effects	(0.3)	0.3	(0.2)
Disposition of EMEA staffing operations	(2.4)	0.0	0.0
Write-offs	(1.0)	(2.1)	(2.8)
Ending balance	$ 4.9	$ 8.0	$ 7.7