Derivative Instruments and Hedging Activities Part 2 (Details)			12 Months Ended
	Dec. 29, 2012 USD ($)	Dec. 29, 2012 EUR (€)	Dec. 29, 2012 Commodity Contracts [Member] Cash Flow Hedging [Member] USD ($)	Dec. 31, 2011 Commodity Contracts [Member] Cash Flow Hedging [Member] USD ($)	Dec. 29, 2012 Commodity Contracts [Member] Cash Flow Hedging [Member] Cost of Goods Sold [Member] USD ($)	Dec. 31, 2011 Commodity Contracts [Member] Cash Flow Hedging [Member] Cost of Goods Sold [Member] USD ($)	Dec. 29, 2012 Commodity Contracts [Member] Fair Value Hedging [Member] Cost of Goods Sold [Member] USD ($)	Dec. 31, 2011 Commodity Contracts [Member] Fair Value Hedging [Member] Cost of Goods Sold [Member] USD ($)	Dec. 29, 2012 Inventory [Member] Fair Value Hedging [Member] Cost of Goods Sold [Member] USD ($)	Dec. 31, 2011 Inventory [Member] Fair Value Hedging [Member] Cost of Goods Sold [Member] USD ($)
Derivative Instruments, Gain (Loss) [Line Items]
Loss Recognized in Accumulated OCI (Effective Portion), Net of Tax			$ (214,000)	$ (427,000)
(Gain) Loss Reclassified from Accumulated OCI into Income (Effective Portion), Net of Tax					469,000	(561,000)
Fair value of futures contracts gain position	499,000
Gain (loss) on the derivatives in designated and qualifying fair value hedges							(301,000)	4,509,000	182,000	(4,344,000)
Open forward contracts to purchase		8,400,000
Restricted cash related to open futures contracts	$ 1,700,000