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Segment Reporting - Summary of Receivables Relating to Revenue Streams (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Segment Reporting Information [Line Items]    
Total accounts receivable $ 36,459 $ 25,857
Receivables from Fuel and Merchandise Sales [Member]    
Segment Reporting Information [Line Items]    
Total accounts receivable 27,141 19,247
Receivables for Rent and Other Lease-related Charges [Member]    
Segment Reporting Information [Line Items]    
Total accounts receivable $ 9,318 $ 6,610