Schedule II Valuation and Qualifying Accounts (Details) (USD $) In Thousands	12 Months Ended
Aug. 27, 2011	Aug. 28, 2010	Aug. 29, 2009
Reserves for Accounts Receivable [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance, Beginning of Period	$ 4,102	$ 5,567	$ 4,164
Charged to Costs and Expenses	3,751	2,733	5,744
Charges for Which Reserves Were Created or Deductions	(3,652)	(4,198)	(4,341)
Balance, End of Period	4,201	4,102	5,567
Reserve for Obsolete Inventory [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance, Beginning of Period	1,783	1,588	1,722
Charged to Costs and Expenses	52	867	624
Charges for Which Reserves Were Created or Deductions	(425)	(672)	(758)
Balance, End of Period	$ 1,410	$ 1,783	$ 1,588

Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 09

-Article 12

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e24092-122690

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Total of the deductions in a given period to allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs, representing receivables written off as uncollectible and portions of the reserves utilized, respectively.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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