Other Current Assets and Liabilities - Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Millions	Sep. 30, 2025	Dec. 31, 2024
Other Current Assets and Liabilities [Abstract]
Product financing agreements	$ 398.8	$ 185.9
Crude purchase liabilities	212.5	193.9
Employee costs	97.2	43.2
Income and other taxes payable	79.9	101.1
Consolidated Net RINs Obligation deficit	0.0	30.6
Short-term derivative liabilities	39.1	5.6
Deferred revenue	4.3	6.9
Other	88.5	82.3
Total	$ 920.3	$ 649.5