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Commitments and Contingencies - Additional Information (Details) - Assets Held-for-sale [Member] - Circle K Stores Inc. [Member]
$ in Millions
12 Months Ended
Jul. 06, 2020
USD ($)
Dec. 31, 2020
Store
Recorded Third Party Environmental Recoveries [Line Items]    
Number of stores divested | Store   9
Settlement agreement date   July 6, 2020
Civil penalty payment | $ $ 3.5