Net Income Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Dec. 03, 2016	Nov. 28, 2015
Net Income Per Share [Abstract]
Net income as reported	$ 54,103	$ 55,029
Less: Distributed net income available to participating securities	(77)	(89)
Less: Undistributed net income available to participating securities	(114)	(163)
Undistributed and distributed net income available to common shareholders: Basic	53,912	54,777
Add: Undistributed net income allocated to participating securities	114	163
Less: Undistributed net income reallocated to participating securities	(113)	(162)
Undistributed and distributed net income available to common shareholders: Diluted	$ 53,913	$ 54,778
Weighted average shares outstanding for basic net income per share	56,381	61,296
Effect of dilutive securities	191	112
Weighted average shares outstanding for diluted net income per share	56,572	61,408
Basic	$ 0.96	$ 0.89
Diluted	$ 0.95	$ 0.89
Antidilutive stock options	606	1,058