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Share Repurchases	12 Months Ended
Share Repurchases	Jul. 29, 2011
Share Repurchases [Abstract]
Share Repurchases	7. Share Repurchases In 2011 and 2010, the Company was authorized to repurchase shares to offset share dilution that results from the issuance of shares under its equity compensation plans. In 2011, the Company repurchased 676,600 shares of its common stock in the open market at an aggregate cost of $33,563. In 2010, the Company repurchased 1,352,000 shares of its common stock in the open market at an aggregate cost of $62,487. In 2012, the Company has been authorized to repurchase shares up to a maximum aggregate cost of $65,000.