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Acquisition (Details) - USD ($)
3 Months Ended 9 Months Ended
Apr. 01, 2016
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Business Acquisition [Line Items]        
Payment of revolving debt     $ 0 $ 49,100,000
Second Lien Notes due 2021 | Senior Notes        
Business Acquisition [Line Items]        
Debt instrument face amount $ 320,000,000.0      
Stated interest rate 6.50%      
CVR Nitrogen | East Dubuque Merger        
Business Acquisition [Line Items]        
Unit consideration per CVR Nitrogen common unit (in units) 1.04      
Cash consideration received per outstanding common unit (in dollars per units) $ 2.57      
CVR Partners, LP | East Dubuque Merger        
Business Acquisition [Line Items]        
Number of shares issued (in units) 40,200,000      
Cash payment to CVR Nitrogen common unitholders and certain phantom unit holders $ 99,200,000      
Aggregate merger consideration 802,400,000      
Fair value of common units issued in a business combination 335,700,000      
Fair value of debt assumed 367,500,000      
CVR Partners, LP | East Dubuque Merger | Wells Fargo Credit Agreement | Line of Credit        
Business Acquisition [Line Items]        
Payment of revolving debt $ 49,400,000      
CVR Partners, LP | East Dubuque Merger | Selling, General and Administrative Expenses (Exclusive of Depreciation and Amortization)        
Business Acquisition [Line Items]        
Merger related expenses   $ 700,000   $ 3,100,000