Debt and Financing Obligations - Financing Obligations (Details) $ in Thousands			12 Months Ended
	Jun. 29, 2016 USD ($) location	Jun. 01, 2015 USD ($) item	Dec. 31, 2024 USD ($) item	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Financing Obligations
Financing obligations			$ 134,475	$ 138,485
Number of locations acquired | item		53
Net gain on sale and disposition of assets			(9,494)	(2,626)	$ (79,873)
Sale Leaseback Sites
Financing Obligations
Financing obligations	$ 62,500		59,800
Lease rental payments			5,000	4,900	4,800
Number of sites under financing obligation | location	30
Net gain on sale and disposition of assets			$ 0
Number of 5-year options | item			2
Number of 10-year options | item			1
Capitol Petroleum Group
Financing Obligations
Financing obligations		$ 89,600	$ 78,800
Number of sale-leaseback transactions | item		2
Interest expense			8,600	8,800	9,000
Lease rental payments			11,100	10,900	10,600
Sale-lease transactions
Financing Obligations
Interest expense			$ 4,100	$ 4,200	$ 4,200