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Equity - Narrative (Details) - $ / shares
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Limited Partners' Capital Account [Line Items]      
General partner's ownership interest 2.00% 2.00% 2.00%
Maximum percentage increase of cash distributions from operating surplus 48.00%    
Excess per unit of cash distributions (in usd per unit) $ 0.43125    
Delek US      
Limited Partners' Capital Account [Line Items]      
Delek's ownership interest in General Partner 94.60%    
Other Affiliates      
Limited Partners' Capital Account [Line Items]      
Delek's ownership interest in General Partner 5.40%    
Delek US Holdings, Inc.      
Limited Partners' Capital Account [Line Items]      
Delek's Limited Partner interest 61.40%    
Common - Public      
Limited Partners' Capital Account [Line Items]      
Limited Partners' capital account, units outstanding (in units) 9,131,579    
Common - Delek Holdings      
Limited Partners' Capital Account [Line Items]      
Limited Partners' capital account, units outstanding (in units) 15,294,046    
General partner - 498,482 units issued and outstanding at December 31, 2019 (498,038 at December 31, 2018)      
Limited Partners' Capital Account [Line Items]      
General Partner's units 498,482 498,038