Amended And Restated Agreements (Details) (USD $)	0 Months Ended		9 Months Ended	0 Months Ended			0 Months Ended	9 Months Ended
	Jun. 20, 2011	May 25, 2011	Sep. 24, 2011	May 25, 2011 Maximum [Member]	Sep. 24, 2011 Maximum [Member]	Jun. 25, 2011 Maximum [Member]	May 25, 2011 Minimum [Member]	Sep. 24, 2011 Minimum [Member]	May 25, 2011 Previously Existing Agreement [Member]
Amended And Restated Agreements [Line Items]
Line of credit, amount outstanding		$ 1,000,000,000			$ 12,000,000	$ 17,500,000
Credit agreement, borrowing capacity									1,250,000,000
Reduction in applicable borrowing spread, basis points		50
Fixed charge coverage ratio				187,500,000			125,000,000
Minimum liquidity requirement		600,000,000	500,000,000
Line of credit restricted payments, amount			75,000,000
Fixed charge coverage ratio change			1.25 to 1.10
Line of credit funded reserve	6,000,000
Unfunded accrual, amount	$ 8,000,000
Fixed charge coverage ratio other transactions threshold								1.0