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Long-Term Investments (Tables)
9 Months Ended
Sep. 30, 2012
Long-Term Investments [Abstract]  
Summary of available-for-sale securities

The following is a summary of available-for-sale securities (in thousands):

 

                                 

September 30, 2012

  Cost     Gross
Unrealized
Gains
    Gross
Unrealized
Losses
    Estimated
Fair
Value
 

Failed Auction Securities

  $ 6,100     $ 0     $ 1,051     $ 5,049  

Brokered certificates of deposit

    1,370       11       0       1,381  

Certificates of deposit

    465       0       0       465  
   

 

 

   

 

 

   

 

 

   

 

 

 
    $ 7,935     $ 11     $ 1,051     $ 6,895  
   

 

 

   

 

 

   

 

 

   

 

 

 

 

                                 

December 31, 2011

  Cost     Gross
Unrealized
Gains
    Gross
Unrealized
Losses
    Estimated
Fair
Value
 

Failed Auction Securities

  $ 9,100     $ 0     $ 1,628     $ 7,472  

Brokered certificates of deposits

    1,640       8       0       1,648  

Certificates of deposit

    465       0       0       465  
   

 

 

   

 

 

   

 

 

   

 

 

 
    $ 11,205     $ 8     $ 1,628     $ 9,585  
   

 

 

   

 

 

   

 

 

   

 

 

 
Amortized cost and estimated fair value of available-for-sale securities

The amortized cost and estimated fair value of available-for-sale securities on September 30, 2012, by contractual maturities, are shown below (in thousands):

 

                 
     Cost     Estimated
Fair Value
 

Due in one year or less

  $ 593     $ 596  

Due in two to ten years

    1,242       1,250  

Due in ten to twenty years

    0       0  

Due in twenty to forty years

    6,100       5,049  
   

 

 

   

 

 

 
    $ 7,935     $ 6,895  
   

 

 

   

 

 

 
Roll forward of credit loss recognized in earnings on available-for-sale auction rate securities

The following table represents a roll forward of the activity related to the credit loss recognized in earnings on available-for-sale auction rate securities held by the Company for the nine months ended September 30 (in thousands):

 

                 
    2012     2011  

Balance at the beginning of the period

  $ 308     $ 610  

Reductions for securities sold during the period

    (16     (366

Additions for the amount related to credit (gain) loss for which other-than- temporary impairment was not previously recognized

    0       71  
   

 

 

   

 

 

 

Balance at the end of the period

  $ 292     $ 315