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Governmental Issuer Loans - Summary of Partnership's GIL Investments (Parenthetical) (Details) - Governmental Issuer Loans [Member] - USD ($) $ in Millions | Jun. 30, 2025 | Feb. 01, 2025 | Dec. 31, 2024
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Floor Rate [Member] | Minimum [Member] |  |  |
Governmental Issuer Loans [Line Items] |  |  |
Variable rate |  |  | 0.25%
Floor Rate [Member] | Maximum [Member] |  |  |
Governmental Issuer Loans [Line Items] |  |  |
Variable rate |  |  | 0.50%
Poppy Grove I [Member] | Maximum [Member] |  |  |
Governmental Issuer Loans [Line Items] |  |  |
Partnership subordinate loan amount | $ 3.8 |  | $ 3.8
Poppy Grove II [Member] | Maximum [Member] |  |  |
Governmental Issuer Loans [Line Items] |  |  |
Partnership subordinate loan amount | 2.2 |  | 2.2
Poppy Grove III [Member] | Maximum [Member] |  |  |
Governmental Issuer Loans [Line Items] |  |  |
Partnership subordinate loan amount | $ 4.2 |  | $ 4.2
Sandy Creek Apartments [Member] |  |  |
Governmental Issuer Loans [Line Items] |  |  |
Variable rate |  | 2.80% |
Investment, Variable Interest Rate, Type [Extensible Enumeration] |  | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] |

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