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Inventoried Costs (Details) - USD ($)
$ in Millions
Sep. 29, 2019
Dec. 30, 2018
Inventory Disclosure [Abstract]    
Raw materials $ 43.3 $ 34.7
Work in process 22.8 10.3
Finished goods 2.1 1.8
Total inventoried costs $ 68.2 $ 46.8