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Related Party Transactions (Details)			1 Months Ended	3 Months Ended	12 Months Ended
	Jun. 10, 2016 USD ($)	Apr. 01, 2016 USD ($)	Apr. 30, 2016 USD ($)	Jun. 30, 2017 railcar	Dec. 31, 2017 USD ($) railcar	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)
Related Party Transaction [Line Items]
Proceeds from issuance of debt					$ 0	$ 628,800,000	$ 0
Coffeyville Resources Pipeline, LLC | Velocity Pipeline Partners, LLC
Related Party Transaction [Line Items]
Joint venture interest					40.00%
Coffeyville Resources Pipeline, LLC | Midway Pipeline LLC
Related Party Transaction [Line Items]
Joint venture interest					50.00%
IEP
Related Party Transaction [Line Items]
Ownership percentage held by controlling stockholder					82.00%
IEP | CVR Partners, LP | CRLLC Facility | Senior Notes
Related Party Transaction [Line Items]
Debt instrument face amount		$ 300,000,000.0
Loan term		2 years
Stated interest rate		12.00%
Interest calculation period		360 days
Proceeds from issuance of debt			$ 300,000,000
Repayments of debt	$ 300,000,000
Payment of accrued interest	$ 7,000,000
American Railcar Leasing LLC | Railcar Lease Agreement [Member] | CVR Partners, LP
Related Party Transaction [Line Items]
Number of railcars leased | railcar					115
Number of railcars to be leased | railcar				70
Rent expense					$ 1,000,000	300,000
Maintenance expense					200,000
Insight Portfolio Group
Related Party Transaction [Line Items]
Payment to related party					$ 200,000	$ 200,000	$ 100,000

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