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Stock-Based Compensation - Additional Information (Detail) (USD $)
In Thousands, except Share data, unless otherwise specified
0 Months Ended 3 Months Ended
Jul. 08, 2013
Aug. 02, 2014
Jul. 27, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of Stock options, forfeited 1,000,000    
Aggregate forfeiture value $ 1,690    
Stock-based compensation expense   4,607 4,222
Restricted Stock Units (RSUs)
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of shares of restricted stock units, vested 275,846    
Restricted stock units, vested, aggregated value 4,968    
Number of shares of restricted stock units, forfeited 166,667    
Aggregate forfeiture value 1,119    
Stock-based compensation expense     $ 1,883