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Other Income (Expense) - Net - Computation of Other Income (Expense) - Net (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2016
Jan. 02, 2016
Jan. 03, 2015
Other Income and Expenses [Abstract]      
Interest income $ 0.6 $ 0.5 $ 0.5
Net foreign exchange loss (1.3) (2.7) (1.5)
Other 0.1 (0.2) 0.1
Total other income (expense) - net $ (0.6) $ (2.4) $ (0.9)