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Acquisitions - Narrative (Details)
$ / shares in Units, $ in Millions
 9 Months Ended
May 01, 2020
USD ($)
Truck_Trailer
Mar. 31, 2020
USD ($)
storage_tank
mi
bbl
$ / shares
shares
Sep. 30, 2020
shares
Jun. 30, 2020
USD ($)
Schedule of Asset Acquisitions, by Acquisition [Line Items]        
Asset Acquisition, Equity Interest Transfered As Consideration, Shares | shares     5,000,000  
Delek Trucking [Member]        
Schedule of Asset Acquisitions, by Acquisition [Line Items]        
Consideration transferred $ 48.0      
Number Of Trucks and Trailers | Truck_Trailer 150      
Asset Acquisition, Carry Value Of Assets Acquired $ 13.3      
Asset Acquisition, Carry Value Of Assets Acquired, Owned Assets 0.5      
Asset Acquisition, Carry Value Of Assets Acquired, Right-Of-Use Assets 12.8      
Asset Acquisition, Transaction Cost $ 0.3      
Big Spring Gathering Asset        
Schedule of Asset Acquisitions, by Acquisition [Line Items]        
Consideration transferred   $ 100.0    
Asset Acquisition, Equity Interest Transfered As Consideration, Shares | shares   5,000,000.0    
Asset Acquisition, Equity Interest Transfered As Consideration, Market Price | $ / shares   $ 9.10    
Asset Acquisition, Equity Interest Transfered As Consideration, Value   $ 109.5    
Number Of Miles Of Gathering Systems | mi   200    
Number of storage tanks | storage_tank   65    
Total Storage Of Terminals | bbl   650,000    
Asset Acquisition, Carry Value Of Assets Acquired       $ 209.5
Asset Acquisition, Transaction Cost       $ 0.7