Income Taxes (Provision For Income Taxes) (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 03, 2016	Aug. 29, 2015	Aug. 30, 2014
Income Taxes [Abstract]
Current: Federal	$ 109,699	$ 109,575	$ 115,186
Current: State and local	15,621	17,339	16,528
Current: Total	125,320	126,914	131,714
Deferred: Federal	13,993	13,987	10,369
Deferred: State and local	1,202	932	1,375
Deferred: Total	15,195	14,919	11,744
Total	$ 140,515	$ 141,833	$ 143,458