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Property And Equipment, Net (Tables)
6 Months Ended
Jun. 30, 2011
Property And Equipment, Net  
Net Property And Equipment
     June 30
2011
    December 31
2010
 

Building

   $ 39,601      $ 39,003   

Furniture and fixtures

     16,725        15,846   

Machinery and equipment

     8,608        7,181   

Computer equipment

     57,844        54,940   

Computer software

     47,405        43,822   

Leasehold improvements

     17,688        15,438   

Land

     16,317        11,154   
  

 

 

   

 

 

 
     204,188        187,384   

Less accumulated depreciation and amortization

     (123,003     (116,530
  

 

 

   

 

 

 

Property and equipment, net

   $ 81,185      $ 70,854