Condensed Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended	12 Months Ended
Nov. 29, 2014	Aug. 30, 2014
Accounts receivable, allowance for doubtful accounts	$ 8,998	$ 9,310
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	5,000,000us-gaap_PreferredStockSharesAuthorized	5,000,000us-gaap_PreferredStockSharesAuthorized
Preferred stock, shares issued	0us-gaap_PreferredStockSharesIssued	0us-gaap_PreferredStockSharesIssued
Preferred stock, shares outstanding	0us-gaap_PreferredStockSharesOutstanding	0us-gaap_PreferredStockSharesOutstanding
Class A treasury stock, shares	7,688,453us-gaap_TreasuryStockShares	7,657,386us-gaap_TreasuryStockShares
Class A Common Stock [Member]
Common stock, voting rights	1	1
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	56,193,479	55,980,199
Class B Common Stock [Member]
Common stock, voting rights	10	10
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	50,000,000	50,000,000
Common stock, shares issued	13,295,747	13,295,747
Common stock, shares outstanding	13,295,747	13,295,747

A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible.

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