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

(In thousands)

 

Property and equipment at cost

   $ 1,209,549      $ 1,168,236   

Less accumulated depreciation

     (872,513     (829,458
                

Property and equipment, net

   $ 337,036      $ 338,778