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Long-Term Debt (Revolving Credit Agreement) (Details) (USD $)
1 Months Ended 1 Months Ended 1 Months Ended 1 Months Ended
Sep. 30, 2013
Dec. 31, 2012
Sep. 25, 2012
Revolving Credit Agreement [Member]
Susser Petroleum Partners Revolver [Member]
Sep. 30, 2013
Revolving Credit Agreement [Member]
Susser Petroleum Partners Revolver [Member]
Sep. 30, 2013
Revolving Credit Agreement [Member]
Susser Petroleum Partners Revolver [Member]
Standby Letters of Credit [Member]
Sep. 25, 2012
Minimum [Member]
Revolving Credit Agreement [Member]
Susser Petroleum Partners Revolver [Member]
Sep. 30, 2013
Minimum [Member]
Revolving Credit Agreement [Member]
Susser Petroleum Partners Revolver [Member]
Sep. 25, 2012
Minimum [Member]
LIBOR [Member]
Revolving Credit Agreement [Member]
Susser Petroleum Partners Revolver [Member]
Sep. 25, 2012
Minimum [Member]
Applicable Margin Range [Member]
Revolving Credit Agreement [Member]
Susser Petroleum Partners Revolver [Member]
Sep. 25, 2012
Maximum [Member]
Revolving Credit Agreement [Member]
Susser Petroleum Partners Revolver [Member]
Sep. 30, 2013
Maximum [Member]
Revolving Credit Agreement [Member]
Susser Petroleum Partners Revolver [Member]
Sep. 25, 2012
Maximum [Member]
LIBOR [Member]
Revolving Credit Agreement [Member]
Susser Petroleum Partners Revolver [Member]
Sep. 25, 2012
Maximum [Member]
Applicable Margin Range [Member]
Revolving Credit Agreement [Member]
Susser Petroleum Partners Revolver [Member]
Debt Instrument [Line Items]                          
Maximum borrowing capactiy     $ 250,000,000 $ 250,000,000                  
Increase in additional borrowings     100,000,000                    
Basis spread on variable rate               1.00% 2.00%     2.25% 3.25%
Commitment fee percentage           0.375%       0.50%      
Revolving line of credit 142,800,000 35,590,000                      
Consolidated interest coverage ratio             2.50       1.00    
Consolidated total leverage ratio             4.50       1.00    
Consolidated total leverage ratio at end of fiscal quarter             3.00       1.00    
Letters of Credit Outstanding, Amount         10,000,000                
Current borrowing capacity       $ 97,200,000