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Supplemental Cash Flow Information - Non-cash Investing and Financing Activities (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Schedule Of Supplemental Cash Flow [Line Items]      
Accrued capital expenditures $ 2,048 $ 4,027 $ 1,057
Lease liabilities arising from obtaining right-of-use assets $ 30,460 70,905 2,879
Retail and Wholesale Acquisition [Member]      
Schedule Of Supplemental Cash Flow [Line Items]      
Net assets acquired   (17,092)  
Asset Exchanges [Member] | Circle K Stores Inc. [Member]      
Schedule Of Supplemental Cash Flow [Line Items]      
Net assets acquired   (75,935) $ (35,740)
CST Fuel Supply Exchange Agreement [Member] | Circle K Stores Inc. [Member]      
Schedule Of Supplemental Cash Flow [Line Items]      
Net assets acquired   $ (54,920)