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Prior Year Acquisitions - Additional Information (Details)
$ in Millions
 12 Months Ended
Apr. 14, 2020
Site
Mar. 25, 2020
USD ($)
Site
Property
Dec. 18, 2018
Site
Dec. 31, 2021
Store
Business Acquisition [Line Items]        
Number of company operated sites | Store       124
CST Fuel Supply Exchange Agreement [Member]        
Business Acquisition [Line Items]        
Number of leased convenience store properties acquired | Property   33    
Proceeds in exchange for investment | $   $ 14.1    
CST Fuel Supply Exchange Agreement [Member] | Wholesale Fuel Supply Contracts/Rights [Member]        
Business Acquisition [Line Items]        
Number of additional sites   331    
Asset Purchase Agreement [Member] | Sellers [Member] | Retail and Wholesale Acquisition [Member]        
Business Acquisition [Line Items]        
Number of retail stores operated 169      
Number of company operated sites 154      
Number of commission sites 15      
Number of newly leased sites 62      
Number of sites under dealer arrangements 107      
Number of wholesale fuel distribution 110      
Number of third-party wholesale dealer contracts 53      
Circle K Stores Inc. [Member]        
Business Acquisition [Line Items]        
Number of sites acquired     191  
Number of real property in exchange for acquisition     56  
Number of sites previously owned and operated by partnership     17  
Collection of rent from real property sites divested     we no longer collect rent from the sites divested in these transactions