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Earnings Per Share
 6 Months Ended
Jun. 30, 2011
Earnings Per Share [Abstract]  
Earnings Per Share
 
(10)   Earnings Per Share
 
Basic and diluted earnings per share are computed by dividing net income (loss) attributable to CVR Energy stockholders by weighted-average common shares outstanding. The components of the basic and diluted earnings (loss) per share calculation are as follows:
 
                                 
    For the Three Months
 		    For the Six Months
 		 
    Ended June 30,     Ended June 30,  
    2011     2010     2011     2010  
    (in thousands, except share data)  
 
Net income (loss) attributable to CVR Energy stockholders
  $ 124,865     $ 1,152     $ 170,653     $ (11,211 )
Weighted-average common shares outstanding
    86,422,881       86,336,125       86,418,356       86,332,700  
Effect of dilutive securities:
                               
Non-vested common stock
    1,362,167       170,465       1,364,131       —  
Stock options
    4,303       —       3,801       —  
                                 
Weighted-average common shares outstanding assuming dilution
    87,789,351       86,506,590       87,786,288       86,332,700  
                                 
Basic earnings (loss) per share
  $ 1.44     $ 0.01     $ 1.97     $ (0.13 )
Diluted earnings (loss) per share
  $ 1.42     $ 0.01     $ 1.94     $ (0.13 )
 
Outstanding stock options totaling 19,099 and 29,201 common shares were excluded from the diluted earnings per share calculation for the six months ended June 30, 2011 and 2010, respectively, as they were antidilutive. Outstanding stock options totaling 18,597 and 29,201 common shares were excluded from the diluted earnings per share calculation for the three months ended June 30, 2011 and 2010, respectively, as they were antidilutive. For the six months ended June 30, 2010, 173,715 shares of restricted common stock were excluded from the diluted earnings (loss) per share calculation, as they were antidilutive.