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Property, Plant and Equipment (Narrative) (Details) - USD ($)
$ in Millions
12 Months Ended
Jan. 01, 2022
Jan. 02, 2021
Dec. 28, 2019
Property, Plant and Equipment [Line Items]      
Construction in process assets $ 48.7 $ 23.7  
Inventory, parts and components, net of reserves 7.0 5.6  
Depreciation $ 24.7 $ 21.4 $ 20.2