Net Income Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Sep. 03, 2016	May 28, 2016	Feb. 27, 2016	Nov. 28, 2015	Aug. 29, 2015	May 30, 2015	Feb. 28, 2015	Nov. 29, 2014	Sep. 03, 2016	Aug. 29, 2015	Aug. 30, 2014
Net Income Per Share [Abstract]
Net income as reported	$ 61,846	$ 64,816	$ 49,525	$ 55,029	$ 59,022	$ 63,342	$ 51,527	$ 57,417	$ 231,216	$ 231,308	$ 236,067
Less: Distributed net income available to participating securities									(308)	(1,350)	(481)
Less: Undistributed net income available to participating securities									(601)		(1,146)
Undistributed and distributed net income available to common shareholders: Basic									230,307	229,958	234,440
Add: Undistributed net income allocated to participating securities									601		1,146
Less: Undistributed net income reallocated to participating securities									(600)		(1,140)
Undistributed and distributed net income available to common shareholders: Diluted									$ 230,308	$ 229,958	$ 234,446
Weighted average shares outstanding for basic net income per share									60,908,000	61,292,000	62,026,000
Effect of dilutive securities									168,000	195,000	313,000
Weighted average shares outstanding for diluted net income per share									61,076,000	61,487,000	62,339,000
Basic	$ 1.03	$ 1.06	$ 0.81	$ 0.89	$ 0.96	$ 1.03	$ 0.84	$ 0.92	$ 3.78	$ 3.75	$ 3.78
Diluted	$ 1.02	$ 1.05	$ 0.80	$ 0.89	$ 0.96	$ 1.03	$ 0.83	$ 0.91	$ 3.77	$ 3.74	$ 3.76
Antidilutive stock options									843	678	0