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Long-Term Debt - Nitrogen Fertilizer Partnership Credit Facility (Details) - Line of Credit - CVR Partners, LP - CRNF Credit Facility - USD ($)
Mar. 31, 2016
Apr. 13, 2011
Term Loan    
Debt Instrument [Line Items]    
Debt instrument face amount   $ 125,000,000.0
Revolving Credit Facility    
Debt Instrument [Line Items]    
Borrowing capacity   25,000,000.0
Uncommitted incremental facility   $ 50,000,000.0
Effective interest rate 3.98%