Income Taxes (Provision For Income Taxes) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Aug. 31, 2013	Sep. 01, 2012	Aug. 27, 2011
Income Taxes [Abstract]
Current: Federal	$ 119,470	$ 128,640	$ 99,034
Current: State and local	18,629	18,421	15,986
Current: Total	138,099	147,061	115,020
Deferred: Federal	7,403	4,797	15,385
Deferred: State and local	(68)	1,253	139
Deferred: Total	7,335	6,050	15,524
Total	$ 145,434	$ 153,111	$ 130,544