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Related Party Transactions - Omnibus Agreement (Details) - Delek US and affiliates - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Mar. 01, 2018
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Operating and maintenance expense          
Related Party Transaction [Line Items]          
Expenses   $ 10,310 $ 10,590 $ 23,067 $ 20,515
Omnibus Agreement          
Related Party Transaction [Line Items]          
Related Party Annual Service Fee $ 4,100        
Omnibus Agreement | Delek US          
Related Party Transaction [Line Items]          
Reimbursement for costs incurred for asset failures     700   4,100
Omnibus Agreement | Delek US | Operating and maintenance expense          
Related Party Transaction [Line Items]          
Reimbursement for costs incurred for asset failures     2,200 100 5,700
Omnibus Agreement | Delek US | Other long term liabilities          
Related Party Transaction [Line Items]          
Reimbursement of capital expenditures by Delek Holdings     700 600 1,500
DPG Management Agreement, Operating Service And Construction Fee Paid To Partnership          
Related Party Transaction [Line Items]          
Expenses   $ 400 $ 1,000 $ 1,200 $ 2,800