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Related Party Transactions Quarterly Cash Distributions (Details) - USD ($)
$ in Thousands
1 Months Ended
Jul. 24, 2017
May 12, 2017
Feb. 14, 2017
Nov. 14, 2016
Aug. 12, 2016
May 13, 2016
Feb. 12, 2016
May 31, 2016
Feb. 29, 2016
Related Party Transaction [Line Items]                  
Quarterly cash distributions paid   $ 21,024 $ 20,537 $ 19,302 $ 18,085 $ 17,100 $ 16,100    
Delek US and General Partner                  
Related Party Transaction [Line Items]                  
Quarterly cash distributions paid   $ 14,700 $ 14,200         $ 11,300 $ 10,500
Subsequent Event [Member]                  
Related Party Transaction [Line Items]                  
Quarterly distributions declared $ 21,783                
Subsequent Event [Member] | Delek US and General Partner                  
Related Party Transaction [Line Items]                  
Quarterly distributions declared $ 15,400