Assets and Liabilities Held for Sale - Carrying amounts (Details) - Iowa and Kansas convenience stores - Iowa and Kansas - Held for sale not discontinued operations - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Assets held for sale
Goodwill	$ 1,460	$ 1,460
Property and equipment, net	15,255	15,041
Total assets held for sale	16,715	16,501
Liabilities held for sale
Asset retirement obligations	1,422	1,422
Total liabilities held for sale	$ 1,422	$ 1,422

Amount classified as assets attributable to disposal group held for sale or disposed of.

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