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
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Designated as hedging instrument
Amount of gain (loss) recognized in income on derivatives	$ 11,956	$ 2,184	$ 13,281	$ 9,970
Amount of gain (loss) recognized in income on related hedged items	(10,339)	(4,026)	(11,915)	(6,422)
Designated as hedging instrument | Firm commitments
Amount of gain (loss) recognized in income on related hedged items	(4,343)	(2,319)	(5,535)	(4,217)
Designated as hedging instrument | Inventory
Amount of gain (loss) recognized in income on related hedged items	(5,996)	(1,707)	(6,380)	(2,205)
Not designated as hedging instrument
Amount of gain (loss) recognized in income on derivatives	$ 27,391	$ (15,584)	$ 16,170	$ (45,780)