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Inventories (Detail) - USD ($)
$ in Millions
Sep. 29, 2018
Dec. 30, 2017
Inventory Disclosure [Abstract]    
Raw materials $ 71.5 $ 68.1
Finished goods 41.7 34.3
Resale items 20.4 21.8
Other 3.0 3.4
Total $ 136.6 $ 127.6