Earnings per Share (Tables)
 12 Months Ended
Dec. 31, 2013
Weighted Average Dilutive and Anti-Dilutive Securities

The following table details the potential weighted average dilutive and anti-dilutive securities for the periods presented (in thousands):

 

     Twelve Months Ended December 31,  
     2013      2012      2011  

Potential dilutive warrants

      —           —           32,523   

Potential dilutive restricted stock

      2,529         1,464         1,296   

Anti-dilutive securities

      35,569         37,779         10,757   
Computation of Basic and Diluted Net Income per Share of Common Stock

The following table sets forth the 2013, 2012 and 2011 computation of basic and diluted net income (loss) per share of common stock for the periods presented (in thousands, except per share amounts):

 

     2013     2012      2011  

Net income (loss)

    $ (113,806 )    $ 17,976       $ 30,485   

Basic weighted average common shares outstanding

      68,260        59,424         57,612   

Add: dilutive effect of non-vested restricted stock

      —          28         1,169   

Add: dilutive effect of outstanding warrants

      —          —           6,248   
  

 

 

    

 

 

     

 

 

  

Diluted weighted average common shares outstanding

      68,260        59,452         65,029   
  

 

 

    

 

 

     

 

 

  

Basic earnings (loss) per common share

    $ (1.67 )    $ 0.30       $ 0.53   

Diluted earnings (loss) per common share

    $ (1.67 )    $ 0.30       $ 0.47   
Activity Associated with Warrants

A summary of the activity associated with warrants during 2013, 2012 and 2011 is as follows (in thousands):

 

     Warrants  

Balance at December 31, 2011

      42,676   

Retirement of public warrants

      (9,635 ) 
  

 

 

  

Balance at December 31, 2012 and 2013

      33,041