Financial Instruments, Changes in Accumulated Other Comprehensive Income (Loss) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended			12 Months Ended
	Dec. 31, 2011	Dec. 25, 2010	Dec. 31, 2011	Dec. 25, 2010	Dec. 31, 2011 Derivatives designated as hedging instruments [Member]	Jun. 25, 2011 Derivatives designated as hedging instruments [Member]
Accumulated other comprehensive income (loss) related to derivative instruments
Beginning balance			$ (14,268)		$ (234)	$ (235)
Loss reclassified to income					597	514
Amount recorded in other comprehensive loss	69	(205)	(256)	43	274	(513)
Ending balance	(12,992)		(12,992)		637	(234)
Estimated net accumulated other comprehensive loss, net of taxes, to be reclassified to earings in the next twelve months			$ 364