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Property And Equipment (Tables)
12 Months Ended
Nov. 30, 2011
Property And Equipment [Abstract]  
Schedule Of Property And Equipment
     November 30,  
     2011     2010  

Buildings

   $ 77,938      $ 77,938   

Equipment and software

     58,021        53,459   

Furniture and fixtures

     6,923        7,237   

Facility improvements

     51,016        47,451   
  

 

 

   

 

 

 
     193,898        186,085   

Less: Accumulated depreciation

     (104,027     (97,562
  

 

 

   

 

 

 
   $ 89,871      $ 88,523