Represents the number of non-transferable contingent cash payments right for each restricted stock awards vested.

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Represents the offer price per share on restricted stock awards vested as a result of the Transaction Agreement and change in control at the parent company.

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Represents the number of shares, right to receive cash payment equal to fair value of which is received per unit on vesting of award.

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No definition available.

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Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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Total of the carrying values as of the balance sheet date of obligations incurred through that date and payable for obligations related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Unrecognized cost of unvested share-based compensation awards.

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount of cash paid related to share-based compensation liabilities.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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Percentage of vesting of share-based compensation awards.

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Share-Based Compensation (Details 1) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2015 USD ($) shares	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Apr. 18, 2012 contingent_cash_payment $ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Liability for unvested restricted share awards	$ 45.7	$ 38.3
CVR Energy Long Term Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock authorized for issuance (in shares) \| shares	7,500,000
Shares available for issuance (in shares) \| shares	6,787,341
CVR Energy Long Term Incentive Plan \| Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock authorized for issuance (in shares) \| shares	1,000,000
CVR Energy Long Term Incentive Plan \| Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Number of shares right to receive cash payment on vesting equal to fair market value is received per award (in shares) \| shares	1
Compensation expense	$ 0.8	2.6	$ 13.2
Cash paid to settle liability-classified awards upon vesting	$ 2.5	9.9	23.8
CVR Energy Long Term Incentive Plan \| Restricted stock units \| Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage	33.33%
CVR Energy Long Term Incentive Plan \| Restricted stock units \| Tranche Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage	33.33%
CVR Energy Long Term Incentive Plan \| Restricted stock units \| Tranche Three
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage	33.33%
CVR Energy Long Term Incentive Plan \| Restricted Stock and Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Offer price per share received as cash settlement on restricted stock awards vested in 2012 (in dollars per share) \| $ / shares				$ 30.00
Number of non-transferable contingent cash payments right for each restricted stock awards vested in 2012 (in shares) \| contingent_cash_payment				1
Executive Officer \| CVR Energy Long Term Incentive Plan \| Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	1 year
Chief Executive Officer \| CVR Energy Long Term Incentive Plan \| Performance Unit Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense		4.4	$ 3.9
Cash paid to settle liability-classified awards upon vesting		6.8
Unrecognized compensation cost	$ 3.5
Weighted-average period for amortization of unrecognized compensation cost	1 year
Personnel Accruals \| CVR Energy Long Term Incentive Plan \| Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Liability for unvested restricted share awards		1.7
Personnel Accruals \| Chief Executive Officer \| CVR Energy Long Term Incentive Plan \| Performance Unit Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Liability for unvested restricted share awards		$ 1.7