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Income Taxes (Tables)
6 Months Ended
Jun. 30, 2012
Income Taxes [Abstract]  
Schedule Of Income Taxes
                 
    Six months ended  
    June 30,  
    2011     2012  
    (In thousands)  

Expected income tax expense, at statutory rate

  $ 10,559     $ 8,239  

U.S. state income tax expense, net

    1,914       1,019  

Other, net

    16       (305
   

 

 

   

 

 

 

Income tax expense

  $ 12,489     $ 8,953