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Selected Quarterly Financial Information (unaudited) (Details 2) - USD ($)
$ in Millions
 3 Months Ended 12 Months Ended
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2015
Sep. 30, 2015
Jun. 30, 2015
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Unusual or Infrequent Item [Line Items]                
Turnaround costs           $ 38.1 $ 109.2 $ 6.8
Coffeyville refinery                
Unusual or Infrequent Item [Line Items]                
Turnaround costs $ 2.1 $ 29.4 $ 84.9 $ 15.6 $ 1.7 31.5 102.2 5.5
Nitrogen fertilizer plant                
Unusual or Infrequent Item [Line Items]                
Turnaround costs       $ 6.6 $ 0.4 $ 6.6 $ 7.0 $ 0.0
East Dubuque                
Unusual or Infrequent Item [Line Items]                
Turnaround costs $ 6.6              
Period of shut down 28 days