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Derivative Instruments and Hedging Activities (Details 3) (USD $)
In Thousands, unless otherwise specified
Aug. 01, 2014
Aug. 02, 2013
Assets    
Gross Amounts of Recognized Assets $ 1,633 $ 3,355
Gross Liabilities Offset in the Balance Sheet (48) (171)
Net Amounts of Assets Presented in the Balance Sheet 1,585 3,184
Liabilities    
Gross Amounts of Recognized Liabilities (1,261) (784)
Gross Assets Offset in the Balance Sheet 86  
Net Amounts of Liabilities Presented in the Balance Sheet (1,175) (784)
Forward currency contracts
   
Assets    
Gross Amounts of Recognized Assets 1,572 3,272
Gross Liabilities Offset in the Balance Sheet (48) (171)
Net Amounts of Assets Presented in the Balance Sheet 1,524 3,101
Liabilities    
Gross Amounts of Recognized Liabilities (560) (356)
Gross Assets Offset in the Balance Sheet 86  
Net Amounts of Liabilities Presented in the Balance Sheet (474) (356)
Cross currency contract
   
Assets    
Gross Amounts of Recognized Assets 61 83
Net Amounts of Assets Presented in the Balance Sheet 61 83
Liabilities    
Gross Amounts of Recognized Liabilities (701) (428)
Net Amounts of Liabilities Presented in the Balance Sheet $ (701) $ (428)