Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Millions	12 Months Ended
Jan. 02, 2021	Dec. 28, 2019	Dec. 29, 2018
Disaggregation of Revenue [Line Items]
Revenue, net	$ 1,953.5	$ 1,795.4	$ 1,791.0
United States
Disaggregation of Revenue [Line Items]
Revenue, net	1,429.6	1,210.0	1,205.0
United Kingdom
Disaggregation of Revenue [Line Items]
Revenue, net	142.2	172.0	173.2
Canada
Disaggregation of Revenue [Line Items]
Revenue, net	64.1	67.0	64.1
All other countries
Disaggregation of Revenue [Line Items]
Revenue, net	$ 317.6	$ 346.4	$ 348.7

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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+ Details