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Commitments and Contingencies - Summary of Product Warranty Accrual Activity (Detail) - USD ($)
$ in Millions
12 Months Ended
Jan. 02, 2016
Jan. 03, 2015
Dec. 28, 2013
Commitments and Contingencies Disclosure [Abstract]      
Beginning of year $ 17.3 $ 17.0 $ 18.9
Additions 13.3 14.6 9.3
Usage (14.2) (14.3) (11.2)
End of year $ 16.4 $ 17.3 $ 17.0