Derivative Instruments and Hedging Activities (Details 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 29, 2014	Mar. 30, 2013
Effect of derivative instruments on earnings
Gain (Loss) Recognized in OCI	$ (833)	$ (930)
Gain (Loss) Reclassified from Accumulated OCI into Earnings	9,581	9,069
Reclassified from Accumulated OCI into Earnings
Effect of derivative instruments on earnings
Gain (Loss) Reclassified from Accumulated OCI into Earnings	(437)	(355)
Foreign currency forward contracts
Effect of derivative instruments on earnings
Gain (Loss) Recognized in OCI	(1,191)	(282)
Foreign currency forward contracts | Reclassified from Accumulated OCI into Earnings
Effect of derivative instruments on earnings
Gain (Loss) Reclassified from Accumulated OCI into Earnings	(262)	(35)
Commodity futures contracts
Effect of derivative instruments on earnings
Gain (Loss) Recognized in OCI	358	(648)
Commodity futures contracts | Reclassified from Accumulated OCI into Earnings
Effect of derivative instruments on earnings
Gain (Loss) Reclassified from Accumulated OCI into Earnings	(175)	(320)
Commodity option and future contracts
Effect of derivative instruments on earnings
Recognized earnings (loss) related to mark-to-market accounting	$ (6)	$ (8)