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Related Party Transactions - Summary of Transactions (Details) - Delek US and affiliates - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Related Party Transaction [Line Items]        
Related Party Transaction, Other Revenues from Transactions with Related Party $ 66,647 $ 63,835 $ 191,530 $ 178,559
General and administrative expenses 4,317 774 7,430 4,236
Cost of goods sold        
Related Party Transaction [Line Items]        
Expenses 66,578 86,944 219,225 269,976
Operating and maintenance expense        
Related Party Transaction [Line Items]        
Expenses $ 18,336 $ 10,314 $ 38,851 $ 29,225