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Note 10. Derivative Financial Instruments (Details) - Risk Management - Commodity swap contracts [Member] - Cash Flow Hedging [Member] - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Apr. 30, 2024
Jul. 31, 2022
Derivatives, Fair Value [Line Items]      
Derivative, notional amount   $ 7.6 $ 70.5
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months $ (0.4)