Income Taxes (Components Of Deferred Tax Assets And Liabilities) (Details) - USD ($) $ in Thousands	Sep. 03, 2016	Aug. 29, 2015
Income Taxes [Abstract]
Deferred tax liabilities: Depreciation	$ (53,580)	$ (51,204)
Deferred tax liabilities: Deferred catalog costs	(1,347)	(1,155)
Deferred tax liabilities: Goodwill	(88,607)	(73,996)
Deferred tax liabilities	(143,534)	(126,355)
Deferred tax assets: Accounts receivable	4,089	3,807
Deferred tax assets: Inventory	9,995	9,036
Deferred tax assets: Deferred compensation	1,710	2,409
Deferred tax assets: Stock based compensation	9,813	9,831
Deferred tax assets: Intangible amortization	11,933	11,788
Deferred tax assets: Other	9,087	7,772
Deferred tax assets	46,627	44,643
Deferred tax liabilities	$ (96,907)	$ (81,712)