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Governmental Issuer Loans - Summary of Partnership's GIL Investments (Parenthetical) (Details) - USD ($) | Dec. 31, 2022 | Dec. 31, 2021
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Maximum [Member] | Governmental Issuer Loans [Member] | Poppy Grove [Member] |  |
Governmental Issuer Loans [Line Items] |  |
Partnership subordinate loan amount | $ 3,800,000 |
Maximum [Member] | Governmental Issuer Loans [Member] | Poppy Grove II [Member] |  |
Governmental Issuer Loans [Line Items] |  |
Partnership subordinate loan amount | 2,200,000 |
Maximum [Member] | Governmental Issuer Loans [Member] | Poppy Grove III [Member] |  |
Governmental Issuer Loans [Line Items] |  |
Partnership subordinate loan amount | $ 4,200,000 |
Floor Rate [Member] | Minimum [Member] | Governmental Issuer Loans [Member] |  |
Governmental Issuer Loans [Line Items] |  |
Variable rate | 0.00% | 0.00%
Floor Rate [Member] | Maximum [Member] | Governmental Issuer Loans [Member] |  |
Governmental Issuer Loans [Line Items] |  |
Variable rate | 0.85% | 0.85%
SIFMA [Member] |  |
Governmental Issuer Loans [Line Items] |  |
Variable rate |  | 2.25%

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