Change of Control	12 Months Ended
Dec. 31, 2012
Change of Control
Change of Control	(3) Change of Control On April 18, 2012, IEP Energy LLC ("IEP Energy"), a majority owned subsidiary of Icahn Enterprises, L.P. ("Icahn Enterprises"), and certain other affiliates of Icahn Enterprises and Carl C. Icahn (collectively, the "IEP Parties"), entered into a Transaction Agreement (the "Transaction Agreement") with CVR, with respect to IEP Energy's tender offer (the "Offer") to purchase all of the issued and outstanding shares of CVR's common stock for a price of $30.00 per share in cash, without interest, less any applicable withholding taxes, plus one CCP, which represents the contractual right to receive an additional cash payment per share if a definitive agreement for the sale of CVR is executed on or prior to August 18, 2013 and such transaction closes. In May 2012, the IEP Parties announced that a majority of CVR's common stock had been acquired through the Offer. As a result of the shares tendered into the Offer and subsequent additional purchases, the IEP Parties owned approximately 82% of CVR's outstanding common stock at December 31, 2012. Pursuant to the Transaction Agreement, all restricted shares scheduled to vest in 2012 were converted to restricted stock units whereby the recipient received cash settlement of the offer price of $30.00 per share in cash plus one CCP upon vesting. Restricted shares scheduled to vest in 2013, 2014 and 2015 were converted to restricted stock units whereby the awards will be settled in cash upon vesting in an amount equal to the lesser of the offer price or the fair market value as determined at the most recent valuation date of December 31 of each year. Additional share-based compensation was incurred due to the modification of the awards and the fair value upon the date of modification. For awards vesting subsequent to 2012, the awards will be remeasured at each subsequent reporting date until they vest. See further discussion at Note 5 ("Share-Based Compensation").

(3) Change of Control

On April 18, 2012, IEP Energy LLC ("IEP Energy"), a majority owned subsidiary of Icahn Enterprises, L.P. ("Icahn Enterprises"), and certain other affiliates of Icahn Enterprises and Carl C. Icahn (collectively, the "IEP Parties"), entered into a Transaction Agreement (the "Transaction Agreement") with CVR, with respect to IEP Energy's tender offer (the "Offer") to purchase all of the issued and outstanding shares of CVR's common stock for a price of $30.00 per share in cash, without interest, less any applicable withholding taxes, plus one CCP, which represents the contractual right to receive an additional cash payment per share if a definitive agreement for the sale of CVR is executed on or prior to August 18, 2013 and such transaction closes.

In May 2012, the IEP Parties announced that a majority of CVR's common stock had been acquired through the Offer. As a result of the shares tendered into the Offer and subsequent additional purchases, the IEP Parties owned approximately 82% of CVR's outstanding common stock at December 31, 2012.

Pursuant to the Transaction Agreement, all restricted shares scheduled to vest in 2012 were converted to restricted stock units whereby the recipient received cash settlement of the offer price of $30.00 per share in cash plus one CCP upon vesting. Restricted shares scheduled to vest in 2013, 2014 and 2015 were converted to restricted stock units whereby the awards will be settled in cash upon vesting in an amount equal to the lesser of the offer price or the fair market value as determined at the most recent valuation date of December 31 of each year. Additional share-based compensation was incurred due to the modification of the awards and the fair value upon the date of modification. For awards vesting subsequent to 2012, the awards will be remeasured at each subsequent reporting date until they vest. See further discussion at Note 5 ("Share-Based Compensation").