Fair Value Measurements (Quantitative Information Level 3 Measurements ) (Details) - Level 3 - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022	Mar. 31, 2022	Dec. 31, 2021
Convertible preferred securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset fair value	$ 15,410	$ 16,278	$ 15,905	$ 11,618
Implied based on market prices | Convertible preferred securities | Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset fair value	15,410	16,278	15,905
Third party appraisal | Grain Assets | Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset fair value	0	9,000	0
Various | Ethanol Plant Assets | Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset fair value	$ 41,673	$ 0	$ 0