Gross amounts of Fair Value of All Derivative Financial Instruments with Counterparties for Which Master Netting Arrangement Utilized (Detail) (USD $)	Jun. 30, 2013	Dec. 30, 2012
Derivatives, Fair Value [Line Items]
Gross Assets	$ 0.7	$ 8.1
Gross Liabilities		(0.2)
Current Assets	0.7	7.9
Gross Assets	1.2	0.5
Gross Liabilities	(2.1)	(1.4)
Current Liabilities	$ (0.9)	$ (0.9)

Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled within one year or normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.

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Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled within one year or normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.

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