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Earnings (Loss) Per Share (Tables)
 12 Months Ended
Dec. 31, 2013
Earnings (Loss) Per Share  
Reconciliation of the basic and diluted earnings per share computations

The following is a reconciliation of the basic and diluted earnings per share computations for the years ended December 31 (dollars in thousands, except per share amounts):

 
   2013   2012   20111  

Net income (loss) for basic and diluted earnings per share

   $ 31,085   $ (247,859 ) $ (179,789 )
               
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Shares of common stock and common stock equivalents:

                    

Weighted average shares—basic

     36,788     38,418     40,691  

Effect of dilutive securities

     1,326     —     —  
               
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Weighted average shares—diluted

     38,114     38,418     40,691  
               
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Earnings (loss) per share:

                    

Basic

   $ 0.84   $ (6.45 ) $ (4.42 )
               
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Diluted

   $ 0.82   $ (6.45 ) $ (4.42 )
               
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