Summary of Significant Accounting Policies - Concentration of Suppliers (Details) - Supplier Concentration Risk - Product Benchmark - Major Suppliers	3 Months Ended		9 Months Ended
	Sep. 30, 2026 store	Sep. 30, 2025 store	Sep. 30, 2026 store company	Sep. 30, 2025 store
Fuel
Accounting Policies [Line Items]
Number of major suppliers \| company			2
Concentration risk percentage	91.00%	87.00%	88.00%	89.00%
Merchandise
Accounting Policies [Line Items]
Number of major suppliers \| store	3	3	3	3
Concentration risk percentage	54.00%	53.00%	54.00%	54.00%

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.