FAIR VALUE MEASUREMENTS (Details 1) (USD $) In Thousands, unless otherwise specified	Sep. 23, 2012		Dec. 25, 2011
Commodity derivative assets	$ 7,689	[1]	$ 2,870	[1]
Commodity derivative liabilities	(1,106)		(2,723)
Foreign currency derivative liabilities	(266)	[2]	0	[2]
Forward Contracts [Member]
Foreign currency derivative liabilities	(266)	[2]	0	[2]
Options Held [Member]
Commodity derivative assets	0
Commodity derivative liabilities	0		(603)
Future [Member]
Commodity derivative assets	7,689	[1]	2,870	[1]
Commodity derivative liabilities	(1,106)	[3]	(2,120)	[3]
Fair Value, Inputs, Level 1 [Member] | Forward Contracts [Member]
Foreign currency derivative liabilities	(266)
Fair Value, Inputs, Level 1 [Member] | Future [Member]
Commodity derivative assets	7,689
Commodity derivative liabilities	(1,106)
Fair Value, Inputs, Level 2 [Member] | Forward Contracts [Member]
Foreign currency derivative liabilities	0
Fair Value, Inputs, Level 2 [Member] | Future [Member]
Commodity derivative assets	0
Commodity derivative liabilities	0
Fair Value, Inputs, Level 3 [Member] | Forward Contracts [Member]
Foreign currency derivative liabilities	0
Fair Value, Inputs, Level 3 [Member] | Future [Member]
Commodity derivative assets	0
Commodity derivative liabilities	$ 0

[1] Commodity derivative assets are included in Prepaid expenses and other current assets on the Condensed Consolidated Balance Sheet.

[2] Foreign currency derivative liabilities are included in Accrued expenses and other current liabilities on the Condensed Consolidated Balance Sheet.

[3] Commodity derivative liabilities are included in Accrued expenses and other current liabilities on the Condensed Consolidated Balance Sheet.