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Stock-Based Compensation (Tables)
6 Months Ended
Oct. 02, 2011
Stock-Based Compensation [Abstract] 
Summary of Stock-Based Compensation Expense
                                 
    Three Months Ended     Six Months Ended  
    October 2,
2011		     September 26,
2010		     October 2,
2011		     September 26,
2010		  
    (In thousands)  

Cost of revenues

   $ 635     $ 629     $ 1,443     $ 1,363  

Engineering and development

     3,592       3,971       8,223       8,978  

Sales and marketing

     1,844       1,929       3,701       4,042  

General and administrative

     1,949       1,740       4,320       4,209  
   

 

 

    

 

 

    

 

 

    

 

 

  
    $ 8,020     $ 8,269     $ 17,687     $ 18,592