Derivatives - Effect of Derivative Instruments on Condensed Consolidated Statements of Earnings (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Apr. 05, 2014	Mar. 30, 2013
Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Amount of Gain or (Loss) Recognized in Earnings on Derivatives	$ 1,386	$ 2,625
Cost of Products Sold [Member] | Commodity Contracts [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Amount of Gain or (Loss), net of tax, Recognized in OCI on Derivatives (Effective Portion)	(1,871)
Amount of Gain or (Loss), net of tax, Reclassified from Accumulated OCI into Earnings (Effective Portion)	(471)
Amount of Gain or (Loss) Recognized in Earnings on Derivatives (Ineffective Portion)
Cost of Products Sold [Member] | Commodity Contracts [Member] | Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Amount of Gain or (Loss) Recognized in Earnings on Derivatives	1,233	2,509
Cost of Products Sold [Member] | Foreign Exchange Contracts [Member] | Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Amount of Gain or (Loss) Recognized in Earnings on Derivatives	$ 153	$ 116