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Property, Plant, and Equipment, Net (Tables)
12 Months Ended
Jan. 31, 2012
Summary Of Property, Plant, And Equipment, Net

A summary of property, plant, and equipment, net follows:

 

As of January 31,

   2012     2011  

Computer equipment and furniture

   $ 284,191      $ 265,450   

Buildings and building equipment

     85,704        75,211   

Land and improvements

     21,179        21,044   

Leasehold improvements

     36,998        35,211   
  

 

 

   

 

 

 
     428,072        396,916   

Less accumulated depreciation and amortization

     (280,053     (257,576
  

 

 

   

 

 

 

Property, plant, and equipment, net

   $ 148,019      $ 139,340