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Summary of Significant Accounting Policies Inventories (Details) - USD ($)
$ in Millions
Jan. 02, 2016
Jan. 03, 2015
Accounting Policies [Abstract]    
Capitalized Indirect Costs $ 19.7 $ 19.9
Inventory Valuation Reserves (2.3) (2.2)
Inventory, Reserve for Estimated Inventory Market Value Below Cost $ (4.5) $ (3.5)