Derivative Financial Instruments (Derivatives In Cash Flow Hedging Relationships) (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jul. 02, 2011	Jun. 30, 2012	Jul. 02, 2011
Not Designated as Hedging Instrument Member
Derivative [Line Items]
Amount of Gain or (Loss) Recognized in Earnings on Derivatives	$ 2,687	$ 3,125	$ 1,394	$ 1,385
Cost of Sales | Commodity Contract | Designated as Hedging Instrument Member
Derivative [Line Items]
Amount of Gain or (Loss) Recognized in OCI on Derivatives (Effective Portion)		(1,613)	(2,264)	(2,699)
Amount of Gain or (Loss) Reclassified from Accumulated OCI into Earnings (Effective Portion)	(10,553)	(9,199)	(21,407)	(18,259)
Amount of Gain or (Loss) Recognized in Earnings on Derivatives (Ineffective Portion)			500
Cost of Sales | Commodity Contract | Not Designated as Hedging Instrument Member
Derivative [Line Items]
Amount of Gain or (Loss) Recognized in Earnings on Derivatives	2,573	3,277	1,223	1,977
Cost of Sales | Foreign Exchange Contract | Not Designated as Hedging Instrument Member
Derivative [Line Items]
Amount of Gain or (Loss) Recognized in Earnings on Derivatives	$ 114	$ (152)	$ 171	$ (592)