XML 32 R24.htm IDEA: XBRL DOCUMENT v2.4.0.6
Financial Instruments (Tables)
3 Months Ended
Mar. 31, 2013
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 March 31, 2013:

   
Carrying
   
Fair
 
   
Amount
   
Value
 
   
(Dollars in thousands)
 
Assets:
           
Cash and cash equivalents
  $ 158,637     $ 158,637  
Natural gas swap agreements
    204       204  
                 
Liabilities:
               
Bank debt
  $ 1,283,649     $ 1,283,649  
5% Senior Notes
    500,000       517,475  
Interest rate swap agreements
    11,357       11,357