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Commitments and Contingencies (Details 10) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]      
Investment in affiliates $ 5.6 $ 0.0 $ 0.0
Velocity Pipeline Partners, LLC | Coffeyville Resources Pipeline, LLC      
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]      
Noncontrolling ownership interest 40.00%    
Investment in affiliates $ 5.6    
Expected investment $ 9.3    
Velocity Pipeline Partners, LLC | Velocity Central Oklahoma Pipeline LLC      
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]      
Ownership interest 60.00%