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Inventories - Summary of Inventories (Details) - USD ($)
$ in Millions
Sep. 26, 2020
Dec. 28, 2019
Inventory Disclosure [Abstract]    
Raw materials $ 26.0 $ 23.8
Finished goods 35.5 24.2
Resale items 10.8 14.0
Other 7.0 0.9
Total $ 79.3 $ 62.9