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Fair Value (Tables)
9 Months Ended
Sep. 30, 2012
Fair Value [Abstract]  
Fair value hierarchy for financial assets and liabilities measured at fair value on a recurring basis
                         

September 30, 2012:

  Level 2     Level 3     Total  
    (In thousands)     (In thousands)     (In thousands)  
    $ 2,938     $ 1,567     $ 4,505  
       

December 31, 2011:

  Level 2     Level 3     Total  
    (In thousands)     (In thousands)     (In thousands)  
    $ 2,487     $ 7,712     $ 10,199  
Schedule of changes in fair value of Level 3 financial instruments
                 
    September 30,     December 31,  
    2012     2011  

Beginning Balance

  $ 7,712     $ 13,306  

Change in fair value

    (6,145 )      (5,594 ) 
   

 

 

   

 

 

 

Ending Balance

  $ 1,567     $ 7,712