Segment Information (Summary Of Total Assets For Operating Segments) (Details) - USD ($) $ in Thousands		Dec. 31, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Total assets	[1]	$ 2,159,755	$ 1,578,917
Operating Segments [Member] | Ethanol Production [Member]
Segment Reporting Information [Line Items]
Total assets	[1]	1,101,151	900,963
Operating Segments [Member] | Agribusiness and Energy Services [Member]
Segment Reporting Information [Line Items]
Total assets	[1]	487,164	378,720
Operating Segments [Member] | Partnership [Member]
Segment Reporting Information [Line Items]
Total assets	[1]	100,349	91,205
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Total assets	[1]	(53,115)	(20,045)
Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Total assets	[1]	$ 524,206	$ 228,074

[1] Asset balances by segment exclude intercompany balances