Inventories (Schedule of Inventories) (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Inventory Disclosure [Abstract]
Petroleum products - FIFO basis	$ 430.5	$ 367.0
Store merchandise for resale - FIFO basis	203.6	192.1
Less LIFO reserve	(313.7)	(250.7)
Total petroleum products and store merchandise inventory	320.4	308.4
Materials and supplies	15.0	10.7
Inventories, at lower of cost or market	$ 335.4	$ 319.1

Total Inventory

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- Definition

The amount of FIFO (first in first out) inventory present at the reporting date when inventory is also valued using different valuation methods.

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- References

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- Definition

Amount by which inventory stated at last-in first-out (LIFO) is less than (in excess of) inventory stated at other inventory cost methods.

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- Definition

Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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- Definition

Aggregated amount of unprocessed materials to be used in manufacturing or production process and supplies that will be consumed. This amount is net of valuation reserves and adjustments.

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- Definition

Carrying amount as of the balance sheet date of merchandise inventory purchased by a retailer, wholesaler or distributor and held for future sale.

+ References

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