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Related Party Transactions Quarterly Cash Distributions (Details) - USD ($)
$ in Thousands
1 Months Ended
Apr. 24, 2017
Feb. 14, 2017
Nov. 14, 2016
Aug. 12, 2016
May 13, 2016
Feb. 28, 2017
Feb. 29, 2016
Related Party Transaction [Line Items]              
Quarterly cash distributions paid   $ 20,537 $ 19,302 $ 18,085 $ 17,095    
Delek US and General Partner              
Related Party Transaction [Line Items]              
Quarterly cash distributions paid           $ 14,200 $ 10,500
Subsequent Event [Member]              
Related Party Transaction [Line Items]              
Quarterly distributions declared $ 21,024            
Subsequent Event [Member] | Delek US and General Partner              
Related Party Transaction [Line Items]              
Quarterly distributions declared $ 14,700