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Organization and Principles of Consolidation - Additional Information (Details)
6 Months Ended
Aug. 21, 2015
Apr. 02, 2015
Oct. 01, 2014
Aug. 29, 2014
shares
Sep. 25, 2012
shares
Jun. 30, 2016
Segment
State
Mar. 31, 2016
Jan. 01, 2016
Jul. 31, 2015
Organization Consolidation And Presentation Of Financial Statements [Line Items]                  
Units sold in IPO         10,925,000        
Percentage of membership interest acquired 100.00%                
Number of operating segments | Segment           2      
Susser [Member]                  
Organization Consolidation And Presentation Of Financial Statements [Line Items]                  
Percentage of Non economic general partner interest and incentive distribution rights       100.00%          
Common and subordinated unit, acquired       11,000,000          
Ownership Percentage       50.10%         100.00%
MACS [Member]                  
Organization Consolidation And Presentation Of Financial Statements [Line Items]                  
Percentage of membership interest acquired     100.00%            
Sunoco LLC [Member]                  
Organization Consolidation And Presentation Of Financial Statements [Line Items]                  
Ownership Percentage   50.10%         49.90%    
Percentage of membership interest acquired   31.58%              
Noncontrolling interest, ownership percentage             68.42%    
Sunoco LLC [Member] | Minimum                  
Organization Consolidation And Presentation Of Financial Statements [Line Items]                  
Number of states in which entity operates | State           26      
Sunoco Retail LLC [Member]                  
Organization Consolidation And Presentation Of Financial Statements [Line Items]                  
Ownership Percentage             100.00% 100.00%