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Property And Equipment, Net (Tables)
12 Months Ended
Dec. 31, 2010
Property And Equipment, Net [Abstract] 
Property And Equipment
     2010     2009  
     (in thousands)  

Land

   $ 18,405      $ 16,206   

Buildings and leasehold improvements

     476,057        368,341   

Equipment

     539,518        536,328   

Computer software

     1,025,468        1,013,461   
  

 

 

   

 

 

 
     2,059,448        1,934,336   

Accumulated depreciation

     (1,244,111     (1,255,194
  

 

 

   

 

 

 

Property and equipment, net

   $ 815,337      $ 679,142