Debt - Narrative (Details) - USD ($)		1 Months Ended		9 Months Ended
	Apr. 30, 2021	Apr. 30, 2021	Apr. 30, 2020	Sep. 30, 2024	Apr. 01, 2024	Dec. 31, 2023	Apr. 15, 2021
Debt Instrument [Line Items]
Proceeds from issuance of long-term debt				$ 68,155,000
Long-term debt				66,955,000		$ 68,118,000
2021 Bonds
Debt Instrument [Line Items]
Aggregate principal amount							$ 68,155,000
Interest rate							1.50%
Effective interest rate (in percent)							1.10%
Debt collateral amount				$ 71,200,000
Debt premium						100,000	$ 800,000
Debt issuance costs						$ 300,000	$ 3,000,000.0
2021 Bonds | Loans Payable
Debt Instrument [Line Items]
Interest rate				3.90%
Remarketed2021 Bonds
Debt Instrument [Line Items]
Interest rate					3.875%
Effective interest rate (in percent)					1.20%
Debt collateral amount				$ 69,600,000
Debt issuance costs				$ 1,300,000	$ 1,700,000
SBA Loans | Loans Payable
Debt Instrument [Line Items]
Interest rate				1.00%
Proceeds from issuance of long-term debt			$ 1,000,000.0
Debt instrument, decrease, forgiveness	$ 600,000
Debt Instrument, monthly payment		$ 8,230
SBA Loans | Loans Payable | Agri-Energy
Debt Instrument [Line Items]
Interest rate	1.00%	1.00%
Long-term debt	$ 200,000	$ 200,000