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Debt - Unsecured Notes Payable (Details) - USD ($)	Feb. 26, 2021	Dec. 31, 2024	Dec. 31, 2023	Feb. 10, 2021
Debt Instrument
Principal balance		$ 56,375,000	$ 53,375,000
Unsecured note payable | Six Percent Unsecured Senior Notes Due May Two Thousand Twenty Six
Debt Instrument
Redemption price	100.00%
Terra BDC | Unsecured note payable
Debt Instrument
Principal balance	$ 3,600,000			$ 34,800,000
Fixed rate (as a percent)	7.00%			7.00%

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