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Significant Accounting Policies - Leases (Details) - USD ($)
$ in Millions
12 Months Ended
Jan. 01, 2022
Jan. 02, 2021
Dec. 28, 2019
Selling, general and administrative      
Lessee, Lease, Description [Line Items]      
Lease impairment loss $ 7.5 $ 27.3 $ 7.9
Restructuring charges      
Lessee, Lease, Description [Line Items]      
Lease impairment loss $ 0.7 $ 2.9 $ 1.7