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Mortgage Revenue Bonds - Schedule of MRBs Acquisitions (Details) | 1 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Jan. 31, 2022 USD ($) Unit | Sep. 30, 2023 USD ($) Unit | Sep. 30, 2022 USD ($) Unit | Jul. 31, 2023 USD ($)
Schedule Of Available For Sale Securities [Line Items] |  |  |  |  |
Initial Principal Funded | $ |  |  | $ 100,445,000 | $ 20,307,000 |
Mortgage Revenue Bonds [Member] |  |  |  |  |
Schedule Of Available For Sale Securities [Line Items] |  |  |  |  |
Initial Principal Funded | $ |  |  |  |  | $ 4,000,000
Residency at the Entrepreneur [Member] | MRB and Taxable MRB Commitments [Member] | Series J-1 [Member] | CA [Member] |  |  |  |  |
Schedule Of Available For Sale Securities [Line Items] |  |  |  |  |
Month Acquired |  |  |  | April |
Units | Unit |  |  |  | 200 |
Maturity Date |  |  |  | Mar. 31, 2040 |
Interest Rate |  |  |  | 6.00% |
Initial Principal Funded | $ |  |  |  | $ 9,000,000 |
Residency at the Entrepreneur [Member] | MRB and Taxable MRB Commitments [Member] | Series J-2 [Member] | CA [Member] |  |  |  |  |
Schedule Of Available For Sale Securities [Line Items] |  |  |  |  |
Month Acquired |  |  |  | April |
Units | Unit |  |  |  | 200 |
Maturity Date |  |  |  | Mar. 31, 2040 |
Interest Rate |  |  |  | 6.00% |
Initial Principal Funded | $ |  |  |  | $ 7,500,000 |
Residency at the Entrepreneur [Member] | MRB and Taxable MRB Commitments [Member] | Series J-3 [Member] | CA [Member] |  |  |  |  |
Schedule Of Available For Sale Securities [Line Items] |  |  |  |  |
Month Acquired | [1] |  |  | April |
Units | Unit | [1] |  |  | 200 |
Maturity Date | [1] |  |  | Mar. 31, 2040 |
Interest Rate | [1] |  |  | 6.00% |
Residency at the Entrepreneur [Member] | MRB and Taxable MRB Commitments [Member] | Series J-4 [Member] | CA [Member] |  |  |  |  |
Schedule Of Available For Sale Securities [Line Items] |  |  |  |  |
Month Acquired | [1] |  |  | April |
Units | Unit | [1] |  |  | 200 |
Maturity Date | [1] |  |  | Mar. 31, 2040 |
Residency at the Entrepreneur [Member] | MRB and Taxable MRB Commitments [Member] | Series J-4 [Member] | CA [Member] | SOFR [Member] |  |  |  |  |
Schedule Of Available For Sale Securities [Line Items] |  |  |  |  |
Interest Rate | [1],[2] |  |  | 3.60% |
Residency at the Entrepreneur [Member] | MRB and Taxable MRB Commitments [Member] | Series J-5 [Member] | CA [Member] |  |  |  |  |
Schedule Of Available For Sale Securities [Line Items] |  |  |  |  |
Month Acquired | [3] |  | February |  |
Units | Unit | [3] |  | 200 |  |
Maturity Date | [3] |  | Apr. 01, 2025 |  |
Initial Principal Funded | $ | [3] |  | $ 1,000,000 |  |
Residency at the Entrepreneur [Member] | MRB and Taxable MRB Commitments [Member] | Series J-5 [Member] | CA [Member] | SOFR [Member] |  |  |  |  |
Schedule Of Available For Sale Securities [Line Items] |  |  |  |  |
Interest Rate | [3],[4] |  | 3.60% |  |
CCBA Senior Garden Apartments [Member] | MRB and Taxable MRB Commitments [Member] | San Diego, CA [Member] |  |  |  |  |
Schedule Of Available For Sale Securities [Line Items] |  |  |  |  |
Month Acquired | [5] |  |  | June |
Units | Unit | [5] |  |  | 45 |
Maturity Date | [5] |  |  | Jul. 01, 2037 |
Interest Rate | [5] |  |  | 4.50% |
Initial Principal Funded | $ | [5] |  |  | $ 3,807,000 |
Live 929 Apartments [Member] | Series 2022A [Member] | Baltimore, MD [Member] |  |  |  |  |
Schedule Of Available For Sale Securities [Line Items] |  |  |  |  |
Month Acquired |  | January |  |  |
Units | Unit |  | 575 |  |  |
Maturity Date |  | Jan. 01, 2060 |  |  |
Interest Rate |  | 4.30% |  |  |
Initial Principal Funded | $ |  | $ 66,365,000 |  |  |
Windsor Shores Apartments [Member] | MRB and Taxable MRB Commitments [Member] | Series A [Member] | Goose Creek, SC [Member] |  |  |  |  |
Schedule Of Available For Sale Securities [Line Items] |  |  |  |  |
Month Acquired |  |  | January |  |
Units | Unit |  |  | 176 |  |
Maturity Date |  |  | Feb. 01, 2030 |  |
Interest Rate |  |  | 6.50% |  |
Initial Principal Funded | $ |  |  | $ 21,545,000 |  |
The Ivy Apartments [Member] | MRB and Taxable MRB Commitments [Member] | Goose Creek, SC [Member] |  |  |  |  |
Schedule Of Available For Sale Securities [Line Items] |  |  |  |  |
Month Acquired |  |  | January |  |
Units | Unit |  |  | 212 |  |
Maturity Date |  |  | Feb. 01, 2030 |  |
Interest Rate |  |  | 6.50% |  |
Initial Principal Funded | $ |  |  | $ 30,500,000 |  |
Handsel Morgan Village Apartments [Member] | MRB and Taxable MRB Commitments [Member] | Buford, GA [Member] |  |  |  |  |
Schedule Of Available For Sale Securities [Line Items] |  |  |  |  |
Month Acquired |  |  | April |  |
Units | Unit |  |  | 45 |  |
Maturity Date |  |  | Mar. 01, 2041 |  |
Interest Rate |  |  | 6.75% |  |
Initial Principal Funded | $ |  |  | $ 2,150,000 |  |
Maryalice Circle Apartments [Member] | MRB and Taxable MRB Commitments [Member] | Buford, GA [Member] |  |  |  |  |
Schedule Of Available For Sale Securities [Line Items] |  |  |  |  |
Month Acquired |  |  | April |  |
Units | Unit |  |  | 98 |  |
Maturity Date |  |  | Mar. 01, 2041 |  |
Interest Rate |  |  | 6.75% |  |
Initial Principal Funded | $ |  |  | $ 5,900,000 |  |
Village at Hanford Square [Member] | MRB and Taxable MRB Commitments [Member] | Series H [Member] | CA [Member] |  |  |  |  |
Schedule Of Available For Sale Securities [Line Items] |  |  |  |  |
Month Acquired |  |  | May |  |
Units | Unit |  |  | 100 |  |
Maturity Date |  |  | May 01, 2030 |  |
Interest Rate |  |  | 6.65% |  |
Initial Principal Funded | $ |  |  | $ 10,400,000 |  |
Village Point [Member] | MRB and Taxable MRB Commitments [Member] | NJ [Member] |  |  |  |  |
Schedule Of Available For Sale Securities [Line Items] |  |  |  |  |
Month Acquired |  |  | May |  |
Units | Unit | [6] |  | 120 |  |
Maturity Date |  |  | Jun. 01, 2030 |  |
Interest Rate |  |  | 6.875% |  |
Initial Principal Funded | $ |  |  | $ 23,000,000 |  |
40rty on Colony [Member] | MRB and Taxable MRB Commitments [Member] | Series P [Member] | CA [Member] |  |  |  |  |
Schedule Of Available For Sale Securities [Line Items] |  |  |  |  |
Month Acquired |  |  | June |  |
Units | Unit |  |  | 40 |  |
Maturity Date |  |  | Jun. 01, 2030 |  |
Interest Rate |  |  | 7.05% |  |
Initial Principal Funded | $ |  |  | $ 5,950,000 |  |
[1] | The Partnership has committed to provide funding for the Series J-3 and Series J-4 MRBs of $26.1 million and $16.4 million, respectively. See Note 19.
[2] | The interest rate is subject to an all-in floor of 3.87%. Upon stabilization, the Series J-4 MRB will become subordinate to the Series J-1, J-2, and J-3 MRBs and will convert to a fixed rate of 8.0%. Upon stabilization of the property, the MRB will be partially repaid and the maximum balance of the MRB after stabilization will not exceed $1.5 million.
[3] | The Partnership has committed to provide funding for the Series J-5 MRB totaling $5.0 million. See Note 19.
[4] | The interest rate is subject to an all-in floor of 3.87%.
[5] | The investment was previously reported as a bond purchase commitment that has converted to an MRB.
[6] | Village Point is a seniors housing property with 120 beds in 92 units.

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