Share-Based Compensation (Total Cost Of Share-Based Compensation) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Mar. 01, 2014	Mar. 02, 2013	Mar. 01, 2014	Mar. 02, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost	$ 983	$ 971	$ 2,244	$ 1,445
Performance Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost	873	354	2,008	701
Unvested Share Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost	83	96	183	184
Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost	27	24	53	41
Management Stock Loans [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost		497		497
Fully Vested Share Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost				$ 22