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Contingencies (Details)
$ in Millions
12 Months Ended
Jan. 03, 2016
USD ($)
years
Dec. 28, 2014
USD ($)
Dec. 29, 2013
USD ($)
Commitments and Contingencies Disclosure [Abstract]      
Accrual for Environmental Loss Contingencies, Component Amount   $ (2.3) $ 5.7
Management's estimate of total cost of ultimate disposition of known environmental matters $ 11.8 $ 12.3  
Number of years over which estimated environmental cost will be paid | years 10