Share-Based Compensation (Total Cost Of Share-Based Compensation) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	May 28, 2016	May 30, 2015	May 28, 2016	May 30, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost	$ 1,048	$ 592	$ 2,922	$ 1,602
Performance Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost	902	446	2,492	1,221
Unvested Share Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost	112	113	338	288
Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost	$ 34	$ 33	$ 92	$ 93