Impairment of Long-Lived Assets (Details) (USD $)	3 Months Ended	6 Months Ended	9 Months Ended	12 Months Ended
	Sep. 29, 2012	Dec. 29, 2012	Mar. 31, 2012	Jun. 30, 2012	Jun. 25, 2011
Long Lived Assets Held-for-sale [Line Items]
Impairment of long-lived assets to be disposed of	$ 2,700,000	$ 22,200,000	$ 7,700,000	$ 22,400,000	$ 0