Income Taxes (Provision For Income Taxes) (Details) - USD ($) $ in Thousands	12 Months Ended
	Aug. 29, 2015	Aug. 30, 2014	Aug. 31, 2013
Income Taxes [Abstract]
Current: Federal	$ 109,575	$ 115,186	$ 119,470
Current: State and local	17,339	16,528	18,629
Current: Total	126,914	131,714	138,099
Deferred: Federal	13,987	10,369	7,403
Deferred: State and local	932	1,375	(68)
Deferred: Total	14,919	11,744	7,335
Total	$ 141,833	$ 143,458	$ 145,434