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Income Taxes (Reconciliation Of Statutory Federal Income Tax Rate To Effective Tax Rate) (Details)
12 Months Ended
Aug. 31, 2013
Sep. 01, 2012
Aug. 27, 2011
Income Taxes [Abstract]      
U.S. Federal statutory rate 35.00% 35.00% 35.00%
State income taxes, net of Federal benefit 3.00% 2.70% 2.80%
Other, net (0.10%) (0.50%) (0.40%)
Effective income tax rate 37.90% 37.20% 37.40%