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Equity - Units Rollforward (Details) - shares
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Increase (Decrease) in Partners' Capital [Roll Forward]      
Beginning balance (in units) 24,924,107 24,901,891 24,880,237
General partner units issued to maintain 2% interest 102,196 444 434
Unit-based compensation awards (in units) 17,711 21,772 21,220
Big Spring Gathering Assets Acquisition equity issuance 5,000,000    
Delek Holdings unit purchases from public 0    
General Partner units converted to non-economic general partner interest (600,678)    
Common limited partner units issued in IDR Restructuring Transaction 14,000,000    
Ending balance (in units) 43,443,336 24,924,107 24,901,891
Units withheld for taxes (in units) 926 0 598
General Partnership      
Increase (Decrease) in Partners' Capital [Roll Forward]      
General partner's ownership interest 2.00% 2.00% 2.00%
General Partner      
Increase (Decrease) in Partners' Capital [Roll Forward]      
Beginning balance (in units) 498,482 498,038 497,604
General partner units issued to maintain 2% interest 102,196 444 434
Unit-based compensation awards (in units) 0 0 0
Big Spring Gathering Assets Acquisition equity issuance 0    
Delek Holdings unit purchases from public 0    
General Partner units converted to non-economic general partner interest (600,678)    
Common limited partner units issued in IDR Restructuring Transaction 0    
Ending balance (in units) 0 498,482 498,038
Common - Public | Limited Partner      
Increase (Decrease) in Partners' Capital [Roll Forward]      
Beginning balance (in units) 9,131,579 9,109,807 9,088,587
General partner units issued to maintain 2% interest 0 0 0
Unit-based compensation awards (in units) 17,711 21,772 21,220
Big Spring Gathering Assets Acquisition equity issuance 0    
Delek Holdings unit purchases from public (451,822)    
General Partner units converted to non-economic general partner interest 0    
Common limited partner units issued in IDR Restructuring Transaction 0    
Ending balance (in units) 8,697,468 9,131,579 9,109,807
Common - Delek Holdings | Limited Partner      
Increase (Decrease) in Partners' Capital [Roll Forward]      
Beginning balance (in units) 15,294,046 15,294,046 15,294,046
General partner units issued to maintain 2% interest 0 0 0
Unit-based compensation awards (in units) 0 0 0
Big Spring Gathering Assets Acquisition equity issuance 5,000,000    
Delek Holdings unit purchases from public 451,822    
General Partner units converted to non-economic general partner interest 0    
Common limited partner units issued in IDR Restructuring Transaction 14,000,000    
Ending balance (in units) 34,745,868 15,294,046 15,294,046