Derivatives - Summary of Gross Fair Values of Derivative Instruments, Presenting the Impact of Offsetting Derivative Assets (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Offsetting Assets
Gross Amounts of Recognized Assets	$ 18.4	$ 0.0
Derivative Asset, Fair Value, Gross Liability	(10.0)	0.0
Net Amounts of Assets Presented in the Condensed Consolidated Balance Sheets	8.4	0.0
Crack spread swaps | Not Designated as Hedging Instrument | Specialty Products and Solutions
Offsetting Assets
Gross Amounts of Recognized Assets	10.3	0.0
Derivative Asset, Fair Value, Gross Liability	(1.9)	0.0
Net Amounts of Assets Presented in the Condensed Consolidated Balance Sheets	8.4	0.0
Inventory Financing Obligations | Not Designated as Hedging Instrument | Montana/Renewables
Offsetting Assets
Gross Amounts of Recognized Assets	8.1	0.0
Derivative Asset, Fair Value, Gross Liability	(8.1)	0.0
Net Amounts of Assets Presented in the Condensed Consolidated Balance Sheets	$ 0.0	$ 0.0