Segment Reporting - Additional Information (Details)	12 Months Ended
	Dec. 31, 2019 state segment	Apr. 02, 2018 stores	Jan. 18, 2017 stores
Segment Reporting Information [Line Items]
Number of operating segments | segment	2
Number of stores | stores			97
Number of states in which entity operates	30
Fuel Distribution and Marketing [Member]
Segment Reporting Information [Line Items]
Number of states in which entity operates	30
All Other [Member]
Segment Reporting Information [Line Items]
Number of states in which entity operates	20
Commission Agent Revenue [Member]
Segment Reporting Information [Line Items]
Number of stores | stores		207