Other Expense (Income), Net - Schedule of Other Expenses and (Income) (Detail) - USD ($) $ in Millions	1 Months Ended		12 Months Ended
	Feb. 28, 2014	Nov. 30, 2013	Dec. 31, 2016	Jan. 02, 2016	Jan. 03, 2015
Other Income and Expenses [Abstract]
Foreign exchange loss (gain)			$ 1.3	$ (7.8)	$ (0.3)
Proceeds from legal settlement				(1.4)	(3.5)
Gain on recoveries from insurance proceeds			(1.2)
Realized commodity hedging gain			(5.8)
Unrealized commodity hedging loss (gain), net			9.8	(1.2)	1.2
Bond redemption					20.8
Write-off of financing fees and discount	$ 0.3	$ 4.0			4.1
Other (gain) loss			(0.2)	0.9	(1.3)
Total			$ 3.9	$ (9.5)	$ 21.0