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Financial Instruments (Tables)
9 Months Ended
Sep. 30, 2011
Summary of Carrying Amounts and Estimated Fair Values of Other Financial Instruments
The following table summarizes the carrying amounts and estimated fair values of our other financial instruments at September 30, 2011:

   
Carrying
   
Fair
 
   
Amount
   
Value
 
   
(Dollars in thousands)
 
Assets:
           
Cash and cash equivalents
  $ 140,465     $ 140,465  
                 
Liabilities:
               
Bank debt
    1,185,925       1,185,925  
7¼% Senior Notes
    245,025       263,750  
Interest rate swap agreements
    11,593       11,593  
Natural gas swap agreements
    328       328