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Earnings Per Share (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
 1 Months Ended 3 Months Ended 6 Months Ended
May 31, 2012
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Earnings Per Share          
Net income attributable to CVR Energy stockholders   $ 154,734 $ 124,865 $ 129,532 $ 170,653
Weighted-average number of shares of common stock outstanding   86,821,224 86,422,881 86,814,687 86,418,356
Effect of dilutive securities:          
Non-vested common stock (in shares)   1,629,790 1,362,167 1,645,254 1,364,131
Stock Options (in shares)   2,992 4,303 4,406 3,801
Weighted-average number of shares of common stock outstanding assuming dilution   88,454,006 87,789,351 88,464,347 87,786,288
Basic earnings per share (in dollars per share)   $ 1.78 $ 1.44 $ 1.49 $ 1.97
Diluted earnings per share (in dollars per share)   $ 1.75 $ 1.42 $ 1.46 $ 1.94
Number of option exercised 22,900