Hedging Transactions and Derivative Financial Instruments - Summary of Reconciliation of Company's Derivatives by Contract Type (Detail) - USD ($) $ in Millions	Jul. 04, 2015	Jan. 03, 2015
Derivative [Line Items]
Assets	$ 1.4	$ 1.2
Liabilities	(5.8)	(2.3)
Foreign Exchange Contract [Member]
Derivative [Line Items]
Assets	1.4	1.0
Aluminum Swaps [Member]
Derivative [Line Items]
Assets		0.2
Liabilities	$ (5.8)	$ (2.3)