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Related Party Transactions - Summary of Transactions (Details) - Delek US and affiliates [Member] - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Related Party Transaction [Line Items]        
Revenues $ 40,131 $ 36,360 $ 116,574 $ 111,814
General and administrative expenses 2,073 1,641 5,327 4,595
Cost of goods sold [Member]        
Related Party Transaction [Line Items]        
Expenses 9,232 5,247 26,412 24,064
Operating and maintenance expense [Member]        
Related Party Transaction [Line Items]        
Expenses $ 7,275 $ 7,988 $ 20,756 $ 22,738