Net Income Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	May 28, 2016	May 30, 2015	May 28, 2016	May 30, 2015
Net Income Per Share [Abstract]
Net income as reported	$ 64,816	$ 63,342	$ 169,370	$ 172,286
Less: Distributed net income available to participating securities	(81)	(101)	(251)	(1,439)
Less: Undistributed net income available to participating securities	(170)	(258)	(442)
Undistributed and distributed net income available to common shareholders: Basic	64,565	62,983	168,677	170,847
Add: Undistributed net income allocated to participating securities	170	258	442
Less: Undistributed net income reallocated to participating securities	(170)	(257)	(441)
Undistributed and distributed net income available to common shareholders: Diluted	$ 64,565	$ 62,984	$ 168,678	$ 170,847
Weighted average shares outstanding for basic net income per share	61,133	61,287	61,206	61,294
Effect of dilutive securities	236	137	158	216
Weighted average shares outstanding for diluted net income per share	61,369	61,424	61,364	61,510
Net income per share Two-class method: Basic	$ 1.06	$ 1.03	$ 2.76	$ 2.79
Net income per share Two-class method: Diluted	$ 1.05	$ 1.03	$ 2.75	$ 2.78
Antidilutive stock options	639	741	1,009	736