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Derivative Financial Instruments (Schedule of Derivatives Instruments Statements of Financial Position) (Details) - Commodity contract - Futures - Cost of goods sold - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
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Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Designated as hedging instrument |  |  |  |
Amount of gain (loss) recognized in income on derivatives | $ 2,430 | $ 11,956 | $ 2,275 | $ 13,281
Amount of gain (loss) recognized in income on related hedged items | (632) | (10,339) | (16) | (11,915)
Designated as hedging instrument | Firm commitments |  |  |  |
Amount of gain (loss) recognized in income on related hedged items | (264) | (4,343) | 113 | (5,535)
Designated as hedging instrument | Inventory |  |  |  |
Amount of gain (loss) recognized in income on related hedged items | (368) | (5,996) | (129) | (6,380)
Not designated as hedging instrument |  |  |  |
Amount of gain (loss) recognized in income on derivatives | $ 18,639 | $ 27,391 | $ 7,249 | $ 16,170

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