Schedule II Valuation And Qualifying Accounts (Details) (Allowance for Doubtful Accounts [Member], USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 01, 2012		Aug. 27, 2011		Aug. 28, 2010
Allowance for Doubtful Accounts [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Year	$ 6,184	[1]	$ 5,489	[1]	$ 5,863	[1]
Charged to Costs and Expenses	3,560	[1]	2,733	[1]	1,892	[1]
Charged to Other Accounts		[1]		[1]		[1]
Deductions	2,810	[1],[2]	2,038	[1],[2]	2,266	[1],[2]
Balance at End of Year	$ 6,934	[1]	$ 6,184	[1]	$ 5,489	[1]

[1] Included in accounts receivable.

[2] Comprised of uncollected accounts charged against the allowance.