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Equity - Narrative (Details) - shares
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Dec. 31, 2019
Delek US      
Class of Stock [Line Items]      
Ownership Interest in General Partner (as percent) 94.60%    
Affiliates      
Class of Stock [Line Items]      
Ownership Interest in General Partner (as percent) 5.40%    
Limited Partner | Common unitholders - public      
Class of Stock [Line Items]      
Common units outstanding (in shares) 8,679,757   9,131,579
Limited Partner | Common unitholders - Delek      
Class of Stock [Line Items]      
Common units outstanding (in shares) 20,745,868   15,294,046
General Partner      
Class of Stock [Line Items]      
General partner units outstanding (units) 600,523   498,482
Delek US Holdings, Inc.      
Class of Stock [Line Items]      
Delek's limited partner ownership interest (as percent) 69.10%    
General Partnership [Member]      
Class of Stock [Line Items]      
General partner's ownership interest (as percent) 2.00% 2.00%