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CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Parenthetical) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2014
Common stock, par value (in dollars per share) | $ 0.01 | $ 0.01
Second Underwritten Offering |  |
Issuance of common units, tax impact |  | $ 39.4
CVR Partners, LP |  |
Issuance of common units, tax impact | $ 20.0 |

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