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Inventories - Schedule of Inventories (Details) - USD ($) $ in Millions | Mar. 31, 2025 | Dec. 31, 2024
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Inventory Disclosure [Abstract] |  |
Petroleum products - FIFO basis | $ 337.9 | $ 353.3
Store merchandise for resale - FIFO basis | 225.4 | 226.5
Less LIFO reserve | (209.5) | (189.1)
Total petroleum products and store merchandise inventory | 353.8 | 390.7
Materials and supplies | 10.6 | 10.9
Total inventories | $ 364.4 | $ 401.6

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