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Fair Value of Derivatives as Defined by Accounting Standard (Detail) - USD ($)
$ in Thousands
May. 01, 2016
May. 03, 2015
Derivatives, Fair Value [Line Items]    
Cash flow hedge foreign currency forward contracts - Other Current Assets   $ 283
Cash flow hedge foreign currency forward contracts - Other Current Liabilities $ (2,160) (426)
Total, net (2,160) (143)
Foreign currency forward contracts - Other Current Assets   262
Foreign currency forward contracts - Other Current liabilities (287)  
Total, net $ (287) $ 262