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Commitments and Contingencies - Summary of Partnership's Total and Remaining Commitments (Details) | 6 Months Ended
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Jun. 30, 2024 USD ($)
Commitments And Other Guarantees [Line Items] |  |
Total Initial Commitment | $ 417,639,233 |
Remaining Commitment as of June 30, 2024 | 263,798,905 |
Mortgage Revenue Bonds and Taxable Mortgage Revenue Bonds [Member] |  |
Commitments And Other Guarantees [Line Items] |  |
Total Initial Commitment | 155,420,000 |
Remaining Commitment as of June 30, 2024 | $ 96,307,106 |
Mortgage Revenue Bonds and Taxable Mortgage Revenue Bonds [Member] | The Residency at the Entrepreneur [Member] | Series J-4 [Member] |  |
Commitments And Other Guarantees [Line Items] |  |
Commitment Date | 2022-04 |
Maturity Date | 2040-03 |
Total Initial Commitment | $ 16,420,000 |
Remaining Commitment as of June 30, 2024 | $ 12,600,000 |
Mortgage Revenue Bonds and Taxable Mortgage Revenue Bonds [Member] | The Residency at the Entrepreneur [Member] | Series J-4 [Member] | SOFR [Member] |  |
Commitments And Other Guarantees [Line Items] |  |
Interest Rate | 3.60% | [1],[2]
Mortgage Revenue Bonds and Taxable Mortgage Revenue Bonds [Member] | The Residency at the Entrepreneur [Member] | Series J-5 [Member] |  |
Commitments And Other Guarantees [Line Items] |  |
Commitment Date | 2023-02 |
Maturity Date | 2025-04 | [3]
Total Initial Commitment | $ 5,000,000 |
Remaining Commitment as of June 30, 2024 | $ 4,000,000 |
Mortgage Revenue Bonds and Taxable Mortgage Revenue Bonds [Member] | The Residency at the Entrepreneur [Member] | Series J-5 [Member] | SOFR [Member] |  |
Commitments And Other Guarantees [Line Items] |  |
Interest Rate | 3.60% | [1]
Mortgage Revenue Bonds and Taxable Mortgage Revenue Bonds [Member] | The Residency at the Entrepreneur [Member] | Series J-T [Member] |  |
Commitments And Other Guarantees [Line Items] |  |
Commitment Date | 2022-04 |
Maturity Date | 2025-04 | [3]
Total Initial Commitment | $ 8,000,000 |
Remaining Commitment as of June 30, 2024 | $ 7,000,000 |
Mortgage Revenue Bonds and Taxable Mortgage Revenue Bonds [Member] | The Residency at the Entrepreneur [Member] | Series J-T [Member] | SOFR [Member] |  |
Commitments And Other Guarantees [Line Items] |  |
Interest Rate | 3.65% | [1]
Mortgage Revenue Bonds and Taxable Mortgage Revenue Bonds [Member] | The Residency at Empire [Member] | Series BB-4 [Member] |  |
Commitments And Other Guarantees [Line Items] |  |
Commitment Date | 2022-12 |
Maturity Date | 2040-12 |
Interest Rate | 6.45% | [1],[4]
Total Initial Commitment | $ 47,000,000 |
Remaining Commitment as of June 30, 2024 | $ 41,500,000 |
Mortgage Revenue Bonds and Taxable Mortgage Revenue Bonds [Member] | The Residency at Empire [Member] | Series BB-T [Member] |  |
Commitments And Other Guarantees [Line Items] |  |
Commitment Date | 2022-12 |
Maturity Date | 2025-12 | [3]
Interest Rate | 7.45% | [1]
Total Initial Commitment | $ 9,404,500 |
Remaining Commitment as of June 30, 2024 | $ 8,404,500 |
Mortgage Revenue Bonds and Taxable Mortgage Revenue Bonds [Member] | Meadow Valley [Member] | Series A [Member] |  |
Commitments And Other Guarantees [Line Items] |  |
Commitment Date | 2021-12 |
Maturity Date | 2029-12 |
Interest Rate | 6.25% | [1]
Total Initial Commitment | $ 44,000,000 |
Remaining Commitment as of June 30, 2024 | $ 14,470,000 |
Mortgage Revenue Bonds and Taxable Mortgage Revenue Bonds [Member] | Village at Hanford Square [Member] | Series H-T [Member] |  |
Commitments And Other Guarantees [Line Items] |  |
Commitment Date | 2023-05 |
Maturity Date | 2030-05 |
Interest Rate | 7.25% | [1]
Total Initial Commitment | $ 10,400,000 |
Remaining Commitment as of June 30, 2024 | $ 6,900,000 |
Mortgage Revenue Bonds and Taxable Mortgage Revenue Bonds [Member] | 40rty On Colony [Member] | Series P-T [Member] |  |
Commitments And Other Guarantees [Line Items] |  |
Commitment Date | 2023-06 |
Maturity Date | 2030-06 |
Interest Rate | 7.45% | [1]
Total Initial Commitment | $ 5,950,000 |
Remaining Commitment as of June 30, 2024 | $ 4,950,000 |
Mortgage Revenue Bonds and Taxable Mortgage Revenue Bonds [Member] | The Safford [Member] |  |
Commitments And Other Guarantees [Line Items] |  |
Commitment Date | 2023-10 |
Maturity Date | 2026-10 |
Interest Rate | 7.59% | [1]
Total Initial Commitment | $ 43,000,000 |
Remaining Commitment as of June 30, 2024 | 23,737,106 |
Taxable Mortgage Revenue Bonds [Member] |  |
Commitments And Other Guarantees [Line Items] |  |
Total Initial Commitment | 33,754,500 |
Remaining Commitment as of June 30, 2024 | 27,254,500 |
Governmental Issuer Loans and Taxable Governmental Issuer Loans [Member] |  |
Commitments And Other Guarantees [Line Items] |  |
Total Initial Commitment | 97,057,835 |
Remaining Commitment as of June 30, 2024 | $ 36,120,535 |
Governmental Issuer Loans and Taxable Governmental Issuer Loans [Member] | Poppy Grove I [Member] |  |
Commitments And Other Guarantees [Line Items] |  |
Commitment Date | 2022-09 |
Maturity Date | 2025-04 | [3]
Interest Rate | 6.78% | [1]
Total Initial Commitment | $ 35,688,328 |
Remaining Commitment as of June 30, 2024 | $ 7,842,328 |
Governmental Issuer Loans and Taxable Governmental Issuer Loans [Member] | Poppy Grove II [Member] |  |
Commitments And Other Guarantees [Line Items] |  |
Commitment Date | 2022-09 |
Maturity Date | 2025-04 | [3]
Interest Rate | 6.78% | [1]
Total Initial Commitment | $ 22,250,000 |
Remaining Commitment as of June 30, 2024 | $ 9,708,700 |
Governmental Issuer Loans and Taxable Governmental Issuer Loans [Member] | Poppy Grove III [Member] |  |
Commitments And Other Guarantees [Line Items] |  |
Commitment Date | 2022-09 |
Maturity Date | 2025-04 | [3]
Interest Rate | 6.78% | [1]
Total Initial Commitment | $ 39,119,507 |
Remaining Commitment as of June 30, 2024 | 18,569,507 |
Taxable Governmental Issuer Loans [Member] |  |
Commitments And Other Guarantees [Line Items] |  |
Total Initial Commitment | 56,579,465 |
Remaining Commitment as of June 30, 2024 | $ 53,579,465 |
Taxable Governmental Issuer Loans [Member] | Poppy Grove I [Member] |  |
Commitments And Other Guarantees [Line Items] |  |
Commitment Date | 2022-09 |
Maturity Date | 2025-04 | [3]
Interest Rate | 6.78% | [1]
Total Initial Commitment | $ 21,157,672 |
Remaining Commitment as of June 30, 2024 | $ 20,157,672 |
Taxable Governmental Issuer Loans [Member] | Poppy Grove II [Member] |  |
Commitments And Other Guarantees [Line Items] |  |
Commitment Date | 2022-09 |
Maturity Date | 2025-04 | [3]
Interest Rate | 6.78% | [1]
Total Initial Commitment | $ 10,941,300 |
Remaining Commitment as of June 30, 2024 | $ 9,941,300 |
Taxable Governmental Issuer Loans [Member] | Poppy Grove III [Member] |  |
Commitments And Other Guarantees [Line Items] |  |
Commitment Date | 2022-09 |
Maturity Date | 2025-04 | [3]
Interest Rate | 6.78% | [1]
Total Initial Commitment | $ 24,480,493 |
Remaining Commitment as of June 30, 2024 | 23,480,493 |
Property Loans [Member] |  |
Commitments And Other Guarantees [Line Items] |  |
Total Initial Commitment | 7,830,000 |
Remaining Commitment as of June 30, 2024 | $ 1,042,008 |
Property Loans [Member] | Sandy Creek Apartments [Member] |  |
Commitments And Other Guarantees [Line Items] |  |
Commitment Date | 2023-08 |
Maturity Date | 2026-09 | [3]
Interest Rate | 8.63% | [1],[5]
Total Initial Commitment | $ 7,830,000 |
Remaining Commitment as of June 30, 2024 | $ 1,042,008 |
Property Loans [Member] | Anaheim & Walnut [Member] | SOFR [Member] |  |
Commitments And Other Guarantees [Line Items] |  |
Interest Rate | 4.85% | [1]
Joint Venture Investments [Member] |  |
Commitments And Other Guarantees [Line Items] |  |
Total Initial Commitment | $ 63,097,433 |
Remaining Commitment as of June 30, 2024 | $ 45,595,291 |
Joint Venture Investments [Member] | Vantage at San Marcos [Member] |  |
Commitments And Other Guarantees [Line Items] |  |
Commitment Date | 2020-11 | [6],[7]
Total Initial Commitment | $ 9,914,529 | [6],[7]
Remaining Commitment as of June 30, 2024 | $ 8,943,914 | [6],[7]
Joint Venture Investments [Member] | Freestone Greeley [Member] |  |
Commitments And Other Guarantees [Line Items] |  |
Commitment Date | 2022-10 | [6]
Total Initial Commitment | $ 16,035,710 | [6]
Remaining Commitment as of June 30, 2024 | $ 10,562,345 | [6]
Joint Venture Investments [Member] | Freestone Cresta Bella [Member] |  |
Commitments And Other Guarantees [Line Items] |  |
Commitment Date | 2023-12 |
Total Initial Commitment | $ 20,049,570 |
Remaining Commitment as of June 30, 2024 | $ 12,639,538 |
Joint Venture Investments [Member] | Freestone Ladera [Member] |  |
Commitments And Other Guarantees [Line Items] |  |
Commitment Date | 2023-12 |
Total Initial Commitment | $ 17,097,624 |
Remaining Commitment as of June 30, 2024 | 13,449,494 |
Bond Purchase Commitment [Member] |  |
Commitments And Other Guarantees [Line Items] |  |
Total Initial Commitment | 3,900,000 |
Remaining Commitment as of June 30, 2024 | $ 3,900,000 |
Bond Purchase Commitment [Member] | Anaheim & Walnut [Member] |  |
Commitments And Other Guarantees [Line Items] |  |
Commitment Date | 2021-09 |
Maturity Date | Q3 2024 | [8]
Total Initial Commitment | $ 3,900,000 |
Remaining Commitment as of June 30, 2024 | $ 3,900,000 |
[1] | The variable index interest rate components are subject to a floor of 0.27%.
[2] | Upon stabilization, the MRB will convert to a fixed rate of 8.0% and become subordinate to the other senior MRBs.
[3] | The borrowers may elect to extend the maturity date for a period ranging between six and twelve months upon meeting certain conditions, which may include payment of a non-refundable extension fee.
[4] | Upon stabilization, the MRB will convert to a fixed rate of 10.0% and become subordinate to the other senior MRBs of the borrower.
[5] | The interest rate will convert to a variable rate of Term SOFR + 3.35% on February 1, 2025.
[6] | A development site has been identified for this property but construction had not commenced as of June 30, 2024.
[7] | The property became a consolidated VIE effective during the fourth quarter of 2021 (Note 3).
[8] | This is the estimated closing date of the associated bond purchase commitment.

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