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Comprehensive Income (Tables)
6 Months Ended
Jun. 30, 2011
Comprehensive Income  
Components of Comprehensive Income
     For the Three Months Ended     For the Six Months Ended  
     June 30,     June 30,  

(dollars in thousands)

   2011      2010     2011      2010  

Net income

   $ 24,836       $ 27,002      $ 45,283       $ 45,227   

Unrealized foreign currency translation adjustment

     304         (764     1,042         129   

Unrealized (loss) gain - interest rate swaps, net of tax

     1,664         (565 )     3,900         (1,877

Post-retirement medical plan termination, net of tax

     —           (834     —           (834
                                  

Total comprehensive income

   $ 26,804       $ 24,839      $ 50,225       $ 42,645