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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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Share-based Compensation Arrangement by Share-based Payment Award, Vested Award Amount per Performance Factor

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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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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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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 - Long-Term Incentive Plan, CVR Energy (Details)		1 Months Ended	12 Months Ended
	Nov. 01, 2017 USD ($) trading_day $ / shares shares	Dec. 31, 2015 USD ($) shares	Dec. 31, 2017 USD ($) shares	Dec. 31, 2016 USD ($) shares	Dec. 31, 2015 USD ($) shares	Dec. 31, 2014 shares	Dec. 31, 2012 contingent_cash_payment $ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Liability for unvested restricted share awards			$ 55,900,000	$ 45,700,000
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 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
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
Outstanding shares \| shares		599	0	0	599	48,011
Compensation expense			$ 0	$ 0	$ 800,000
Cash paid to settle liability-classified awards upon vesting			$ 0	$ 0	$ 2,500,000
Granted (in shares) \| shares				0	0
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 units \| Personnel Accruals
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Liability for unvested restricted share awards			$ 0	$ 0
CVR Energy Long Term Incentive Plan \| Restricted stock units \| Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period			1 year
CVR Energy Long Term Incentive Plan \| Performance Unit Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares) \| shares	1,500
Award amount per performance factor	$ 1,000
Unrecognized compensation cost			$ 1,500,000
Weighted-average period for amortization of unrecognized compensation cost			1 year
CVR Energy Long Term Incentive Plan \| Performance Unit Awards \| Chief Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense			$ 3,600,000	$ 3,500,000
Granted (in shares) \| shares		3,500
Award amount per performance factor		$ 1,000
Percentage of awards subject to objective relating to average barrels per day throughput		75.00%
Percentage of awards subject to objective relating to average gathered crude barrels per day		25.00%
Liability for unvested restricted share awards			3,600,000
CVR Energy Long Term Incentive Plan \| Performance Unit Awards \| Chief Executive Officer \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance factor percentage		0.00%
CVR Energy Long Term Incentive Plan \| Performance Unit Awards \| Chief Executive Officer \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance factor percentage		110.00%
CVR Energy Long Term Incentive Plan, 2017 Performance Unit Award Agreement \| Performance Unit Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost			$ 10,000,000
Weighted-average period for amortization of unrecognized compensation cost			4 years
Maximum cash payment	$ 10,000,000.0
Period for determination of cash payment value \| trading_day	30
Maximum price per share to trigger maximum cash payment (in dollars per share) \| $ / shares	$ 60