Acquisitions (DSS Acquisition) - Allocation of Purchase Price to Fair Value of Assets Acquired and Liabilities Assumed (Parenthetical) (Detail) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Jan. 02, 2016	Jan. 02, 2016	Jan. 03, 2015	Dec. 28, 2013
Business Acquisition [Line Items]
Increase to deferred income tax liabilities		$ 30.4	$ 65.8	$ (0.5)
Decrease to cost of sales	$ 4.8		0.2
Decrease to SG&A expenses	0.2		0.1
DSS Group Inc [Member]
Business Acquisition [Line Items]
property, plant and equipment decrease	22.7
Increase to intangibles and other assets	16.8
Increase to deferred income tax liabilities	5.0
Increase to goodwill	10.9
Decrease to cost of sales	4.8		0.2
Decrease to SG&A expenses	0.2		0.1
Decrease in income tax benefit	$ 1.9		$ 0.1