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Governmental Issuer Loans - Additional Information (Details) | 1 Months Ended | 12 Months Ended |  |
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Dec. 31, 2024 USD ($) Property Entities | Jun. 30, 2024 USD ($) | Nov. 30, 2023 USD ($) | Aug. 31, 2023 USD ($) | Jul. 31, 2023 USD ($) | Jun. 30, 2023 USD ($) | Dec. 31, 2024 USD ($) Property Entities | Dec. 31, 2023 USD ($) Property | Jan. 01, 2023 USD ($)
Governmental Issuer Loans [Line Items] |  |  |  |  |  |  |  |  |
Allowance for credit losses |  |  |  |  |  |  |  |  | $ 5,900,000
Number of Variable Interest Entities | Property | 31 |  |  |  |  |  | 31 | 33 |
Scharbauer Flats Apartments [Member] |  |  |  |  |  |  |  |  |
Governmental Issuer Loans [Line Items] |  |  |  |  |  |  |  |  |
Partnership recognized loan fee |  |  |  |  |  | $ 33,000 |  |  |
Magnolia Heights [Member] |  |  |  |  |  |  |  |  |
Governmental Issuer Loans [Line Items] |  |  |  |  |  |  |  |  |
Partnership recognized loan fee |  | $ 20,000 |  |  |  |  |  |  |
Governmental Issuer Loans [Member] |  |  |  |  |  |  |  |  |
Governmental Issuer Loans [Line Items] |  |  |  |  |  |  |  |  |
Accrued interest receivable | $ 1,400,000 |  |  |  |  |  | $ 1,400,000 | $ 1,500,000 |
Outstanding principal | $ 128,900,000 |  |  |  |  |  | $ 128,900,000 |  |
Number of Variable Interest Entities | Entities | 2 |  |  |  |  |  | 2 |  |
Governmental Issuer Loans [Member] | Legacy Commons at Signal Hills GIL, the Magnolia Heights GIL, the Osprey Village GIL, the Willow Place Apartments GIl and the Willow Place Apartments Supplemental GIL [Member] |  |  |  |  |  |  |  |  |
Governmental Issuer Loans [Line Items] |  |  |  |  |  |  |  |  |
Partnership recognized loan fee |  |  |  |  |  |  | $ 431,000 |  |
Governmental Issuer Loans [Member] | Hope on Avalon GIL [Member] |  |  |  |  |  |  |  |  |
Governmental Issuer Loans [Line Items] |  |  |  |  |  |  |  |  |
Partnership recognized loan fee |  |  |  |  | $ 70,000 |  |  |  |
Governmental Issuer Loans [Member] | Willow Place Apartments [Member] |  |  |  |  |  |  |  |  |
Governmental Issuer Loans [Line Items] |  |  |  |  |  |  |  |  |
Total commitment fully funded |  |  | $ 1,500,000 |  |  |  |  |  |
Governmental Issuer Loans [Member] | Scharbauer Flats Apartments [Member] |  |  |  |  |  |  |  |  |
Governmental Issuer Loans [Line Items] |  |  |  |  |  |  |  |  |
Partnership recognized loan fee |  |  |  |  |  | $ 100,000 |  |  |
Governmental Issuer Loans [Member] | Natchitoches Thomas Apartments [Member] |  |  |  |  |  |  |  |  |
Governmental Issuer Loans [Line Items] |  |  |  |  |  |  |  |  |
Total commitment fully funded | $ 19,000,000 |  |  |  |  |  |  |  |
Governmental Issuer Loans [Member] | Sandy Creek Apartments [Member] |  |  |  |  |  |  |  |  |
Governmental Issuer Loans [Line Items] |  |  |  |  |  |  |  |  |
Total commitment fully funded |  |  |  | $ 12,100,000 |  |  |  |  |
Property Loans [Member] |  |  |  |  |  |  |  |  |
Governmental Issuer Loans [Line Items] |  |  |  |  |  |  |  |  |
Outstanding principal | $ 8,800,000 |  |  |  |  |  | $ 8,800,000 |  |

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- Definition This is the principal amount outstanding for securitized loans only (across all types of loans). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Subparagraph (a) -Paragraph 4 -SubTopic 20 -Topic 860 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481326/860-20-50-4 + Details
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