Revenue - Schedule of Revenue to External Customers (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 02, 2022	Jul. 03, 2021	Jul. 02, 2022	Jul. 03, 2021
Disaggregation of Revenue [Line Items]
Total	$ 571.4	$ 526.1	$ 1,097.5	$ 1,004.5
United States
Disaggregation of Revenue [Line Items]
Total	419.8	378.1	801.6	728.0
United Kingdom
Disaggregation of Revenue [Line Items]
Total	33.4	38.2	74.8	74.9
Canada
Disaggregation of Revenue [Line Items]
Total	17.1	18.6	32.5	34.5
All other countries
Disaggregation of Revenue [Line Items]
Total	$ 101.1	$ 91.2	$ 188.6	$ 167.1