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Derivative Financial Instruments (Details)	3 Months Ended		9 Months Ended
	Oct. 31, 2024 USD ($) bu	Oct. 31, 2023 USD ($)	Oct. 31, 2024 USD ($) bu	Oct. 31, 2023 USD ($)	Jan. 31, 2024 USD ($) bu gal
Derivative Financial Instruments (Details) [Line Items]
Prepaid Expense and Other Assets | $	$ 1,200,000		$ 1,200,000		$ 2,200,000
Assets [Member] | Corn [Member]
Derivative Financial Instruments (Details) [Line Items]
Forward Purchase Contracts Quantity | bu	11,800,000		11,800,000		9,300,000
Liabilities, Total [Member]
Derivative Financial Instruments (Details) [Line Items]
Forward Purchase Contracts Quantity | bu	4,700,000		4,700,000		8,200,000
Liabilities, Total [Member] | Corn [Member] | Short [Member]
Derivative Financial Instruments (Details) [Line Items]
Commodity Futures Quantity | bu	7,000,000		7,000,000		255,000
Liabilities, Total [Member] | Corn [Member] | Long [Member]
Derivative Financial Instruments (Details) [Line Items]
Commodity Futures Quantity | bu	2,100,000		2,100,000		6,900,000
Liabilities, Total [Member] | Ethanol [Member] | Short [Member]
Derivative Financial Instruments (Details) [Line Items]
Commodity Futures Quantity | gal					210,000
Gain (Loss) on Sale of Derivatives | $	$ 0.3		$ 700,000
Corn [Member]
Derivative Financial Instruments (Details) [Line Items]
Gain (Loss) on Derivative Instruments, Net, Pretax | $	$ 3.8	$ 10,600,000
Derivative, Gain (Loss) on Derivative, Net | $			$ (2.4)	$ 15,700,000

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Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

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Aggregate net gain (loss) on all derivative instruments recognized in earnings during the period, before tax effects.

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The difference between the book value and the sale price of options, swaps, futures, forward contracts, and other derivative instruments. This element refers to the gain (loss) included in earnings.

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Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets.

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