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Financial instruments (Tables)
9 Months Ended
Sep. 30, 2012
Schedule to Carrying Value and Estimated Fair Value of Financial Instruments

The following table presents the carrying value and estimated fair value of our financial instruments:

 

     December 31,
2011
     September 30,
2012
 
     Carrying
amount
     Fair
value
     Carrying
amount
     Fair
value
 
     (In thousands)  

Accounts receivable, net

   $ 58,976       $ 58,976       $ 58,329       $ 58,329   

Accounts payable

     14,334         14,334         16,263         16,263   

Debt:

           

Variable-rate debt

     33,630         33,630         26,430         26,430   

Fixed-rate debt

     984         1,029         1,019         1,052