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Earnings Per Share (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
 3 Months Ended 12 Months Ended
Dec. 31, 2011
Sep. 30, 2011
Jun. 30, 2011
Mar. 31, 2011
Dec. 31, 2010
Sep. 30, 2010
Jun. 30, 2010
Mar. 31, 2010
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Earnings Per Share                      
Net income attributable to CVR Energy Stockholders $ 65,858 $ 109,265 $ 124,865 $ 45,788         $ 345,776 $ 14,290 $ 69,354
Weighted-average number of shares of common stock outstanding 86,852,800 86,549,846 86,422,881 86,413,781 86,352,627 86,343,102 86,336,125 86,329,237 86,493,735 86,340,342 86,248,205
Effect of dilutive securities:                      
Non-vested common stock (in shares)                 1,268,471 448,837 94,228
Stock Options (in shares)                 4,367    
Weighted-average number of shares of common stock outstanding assuming dilution 87,746,843 87,743,600 87,789,351 87,783,857 87,121,094 87,013,575 86,506,590 86,329,237 87,766,573 86,789,179 86,342,433
Basic earnings per share (in dollars per share) $ 0.76 $ 1.26 $ 1.44 $ 0.53 $ 0.03 $ 0.27 $ 0.01 $ (0.14) $ 4.00 $ 0.17 $ 0.80
Diluted earnings per share (in dollars per share) $ 0.75 $ 1.25 $ 1.42 $ 0.52 $ 0.03 $ 0.27 $ 0.01 $ (0.14) $ 3.94 $ 0.16 $ 0.80
Antidilutive outstanding stock options excluded from the calculation of diluted earnings per share (in shares)                 18,533 22,900 32,350