Income Tax Expense (Benefit) - Deferred Income Tax Assets and Liabilities (Detail) (USD $) In Millions, unless otherwise specified	Dec. 28, 2013	Dec. 29, 2012
Deferred tax assets
Loss carryforwards	$ 64.1	$ 53.8
Leases	3.8	4.1
Property, plant & equipment	5.9	4.5
Liabilities and reserves	13.4	12.0
Stock options	1.9	0.9
Inventories	1.8	3.7
Other	4.6	4.1
Deferred tax assets, gross	95.5	83.1
Deferred tax liabilities
Property, plant & equipment	(54.2)	(63.6)
Intangible assets	(25.0)	(15.9)
Other	(1.0)	(0.8)
Deferred tax liabilities	(80.2)	(80.3)
Valuation allowance	(45.2)	(27.5)
Net deferred tax liability	$ (29.9)	$ (24.7)