Income Tax (Benefit) Expense - Deferred Income Tax Assets and Liabilities (Detail) - USD ($) $ in Millions	Jan. 02, 2016	Jan. 03, 2015
Deferred tax assets
Loss carryforwards	$ 136.9	$ 148.9
Leases	0.3	0.1
Property, plant & equipment	5.5	3.3
Liabilities and reserves	42.1	22.3
Stock options	5.9	3.0
Inventories	2.2	2.6
Other	5.6	4.4
Deferred tax assets, gross	198.5	184.6
Deferred tax liabilities
Property, plant & equipment	(105.6)	(127.9)
Intangible assets	(146.4)	(146.4)
Other		(0.5)
Deferred tax liabilities	(252.0)	(274.8)
Valuation allowance	(15.4)	(15.8)
Net deferred tax liability	$ (68.9)	$ (106.0)