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CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)
In Thousands, except Per Share data, unless otherwise specified
Jan. 31, 2015
Aug. 02, 2014
Statement of Financial Position [Abstract]    
Accounts receivable, allowance (in dollars) $ 7,345us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent $ 7,589us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent
Intangible assets, accumulated amortization (in dollars) $ 20,895us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization $ 19,002us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
Preferred stock, par value (in dollars per share) $ 0.01us-gaap_PreferredStockParOrStatedValuePerShare $ 0.01us-gaap_PreferredStockParOrStatedValuePerShare
Preferred stock, authorized shares 5,000us-gaap_PreferredStockSharesAuthorized 5,000us-gaap_PreferredStockSharesAuthorized
Preferred stock, issued shares 0us-gaap_PreferredStockSharesIssued 0us-gaap_PreferredStockSharesIssued
Preferred stock, outstanding shares 0us-gaap_PreferredStockSharesOutstanding 0us-gaap_PreferredStockSharesOutstanding
Common stock, par value (in dollars per share) $ 0.01us-gaap_CommonStockParOrStatedValuePerShare $ 0.01us-gaap_CommonStockParOrStatedValuePerShare
Common stock, authorized shares 100,000us-gaap_CommonStockSharesAuthorized 100,000us-gaap_CommonStockSharesAuthorized
Common stock, issued shares 50,071us-gaap_CommonStockSharesIssued 49,771us-gaap_CommonStockSharesIssued
Common stock, outstanding shares 50,071us-gaap_CommonStockSharesOutstanding 49,771us-gaap_CommonStockSharesOutstanding