Governmental Issuer Loans - Summary of Partnership's GIL Investments (Details)		6 Months Ended		12 Months Ended
		Jun. 30, 2024 USD ($) Unit		Dec. 31, 2023 USD ($) Unit
Governmental Issuer Loans [Line Items]
Amortized Cost		$ 213,446,300		$ 221,653,300
Governmental Issuer Loans [Member] | TOB Trust [Member]
Governmental Issuer Loans [Line Items]
Units | Unit		1,539		1,627
Amortized Cost		$ 214,557,300		$ 222,947,300
Governmental Issuer Loans [Member] | Legacy Commons at Signal Hills [Member] | TOB Trust [Member] | St. Paul, MN [Member]
Governmental Issuer Loans [Line Items]
Month Acquired	[1]	January 2021		January 2021
Units | Unit	[1]	247		247
Maturity Date	[1]	Aug. 01, 2024	[2]	Feb. 01, 2024	[3]
Current Interest Rate	[1]	8.41%		8.46%
Amortized Cost	[1]	$ 34,620,000		$ 34,620,000
Governmental Issuer Loans [Member] | Legacy Commons at Signal Hills [Member] | TOB Trust [Member] | SOFR [Member] | St. Paul, MN [Member]
Governmental Issuer Loans [Line Items]
Variable rate	[1]	3.07%	[4]	3.07%	[5]
Governmental Issuer Loans [Member] | Willow Place Apartments Supplemental [Member] | TOB Trust [Member] | McDonough, GA [Member]
Governmental Issuer Loans [Line Items]
Month Acquired		November 2023		November 2023
Maturity Date		Oct. 01, 2024	[2]	Oct. 01, 2024	[3]
Current Interest Rate		8.78%		8.76%
Amortized Cost		$ 1,500,000		$ 1,500,000
Governmental Issuer Loans [Member] | Willow Place Apartments Supplemental [Member] | TOB Trust [Member] | SOFR [Member] | McDonough, GA [Member]
Governmental Issuer Loans [Line Items]
Variable rate		3.45%	[4]	3.45%	[5]
Governmental Issuer Loans [Member] | Hope on Avalon [Member]
Governmental Issuer Loans [Line Items]
Maturity Date		Feb. 01, 2024
Governmental Issuer Loans [Member] | Hope on Avalon [Member] | TOB Trust [Member] | Los Angeles, CA [Member]
Governmental Issuer Loans [Line Items]
Month Acquired				January 2021
Units | Unit				88
Maturity Date	[3]			Feb. 01, 2024
Current Interest Rate				7.62%
Amortized Cost				$ 23,390,000
Governmental Issuer Loans [Member] | Hope on Avalon [Member] | TOB Trust [Member] | SIFMA [Member] | Los Angeles, CA [Member]
Governmental Issuer Loans [Line Items]
Variable rate	[5]			3.75%
Governmental Issuer Loans [Member] | Osprey Village [Member] | TOB Trust [Member] | Kissimmee FL [Member]
Governmental Issuer Loans [Line Items]
Month Acquired		July 2021	[1]	July 2021	[6]
Units | Unit		383	[1]	383	[6]
Maturity Date		Aug. 01, 2024	[1],[2]	Aug. 01, 2024	[3],[6]
Current Interest Rate		8.40%	[1]	8.38%	[6]
Amortized Cost		$ 60,000,000	[1]	$ 60,000,000	[6]
Governmental Issuer Loans [Member] | Osprey Village [Member] | TOB Trust [Member] | SOFR [Member] | Kissimmee FL [Member]
Governmental Issuer Loans [Line Items]
Variable rate		3.07%	[1],[4]	3.07%	[5],[6]
Governmental Issuer Loans [Member] | Willow Place Apartments [Member] | TOB Trust [Member] | McDonough, GA [Member]
Governmental Issuer Loans [Line Items]
Month Acquired		September 2021	[1]	September 2021	[6]
Units | Unit		182	[1]	182	[6]
Maturity Date		Oct. 01, 2024	[1],[2]	Oct. 01, 2024	[3],[6]
Current Interest Rate		8.63%	[1]	8.61%	[6]
Amortized Cost		$ 25,000,000	[1]	$ 25,000,000	[6]
Governmental Issuer Loans [Member] | Willow Place Apartments [Member] | TOB Trust [Member] | SOFR [Member] | McDonough, GA [Member]
Governmental Issuer Loans [Line Items]
Variable rate		3.30%	[1],[4]	3.30%	[5],[6]
Governmental Issuer Loans [Member] | Magnolia Heights [Member] | TOB Trust [Member] | Covington, GA [Member]
Governmental Issuer Loans [Line Items]
Month Acquired		June 2022	[1]	June 2022	[6]
Units | Unit		200	[1]	200	[6]
Maturity Date		Oct. 01, 2024	[1],[2]	Jul. 01, 2024	[3],[6]
Current Interest Rate		9.18%	[1]	9.16%	[6]
Amortized Cost		$ 20,400,000	[1]	$ 20,400,000	[6]
Governmental Issuer Loans [Member] | Magnolia Heights [Member] | TOB Trust [Member] | SOFR [Member] | Covington, GA [Member]
Governmental Issuer Loans [Line Items]
Variable rate		3.85%	[1],[4]	3.85%	[5],[6]
Governmental Issuer Loans [Member] | Poppy Grove I [Member] | TOB Trust [Member] | Elk Grove, CA [Member]
Governmental Issuer Loans [Line Items]
Month Acquired		September 2022	[1],[7]	September 2022	[6],[8]
Units | Unit		147	[1],[7]	147	[6],[8]
Maturity Date		Apr. 01, 2025	[1],[2],[7]	Apr. 01, 2025	[3],[6],[8]
Variable rate		6.78%	[1],[4],[7]	6.78%	[5],[6],[8]
Current Interest Rate		6.78%	[1],[7]	6.78%	[6],[8]
Amortized Cost		$ 27,846,000	[1],[7]	$ 19,846,000	[6],[8]
Governmental Issuer Loans [Member] | Poppy Grove II [Member] | TOB Trust [Member] | Elk Grove, CA [Member]
Governmental Issuer Loans [Line Items]
Month Acquired		September 2022	[1],[7]	September 2022	[6],[8]
Units | Unit		82	[1],[7]	82	[6],[8]
Maturity Date		Apr. 01, 2025	[1],[2],[7]	Apr. 01, 2025	[3],[6],[8]
Variable rate		6.78%	[1],[4],[7]	6.78%	[5],[6],[8]
Current Interest Rate		6.78%	[1],[7]	6.78%	[6],[8]
Amortized Cost		$ 12,541,300	[1],[7]	$ 9,541,300	[6],[8]
Governmental Issuer Loans [Member] | Poppy Grove III [Member] | TOB Trust [Member] | Elk Grove, CA [Member]
Governmental Issuer Loans [Line Items]
Month Acquired		September 2022	[1],[7]	September 2022	[6],[8]
Units | Unit		158	[1],[7]	158	[6],[8]
Maturity Date		Apr. 01, 2025	[1],[2],[7]	Apr. 01, 2025	[3],[6],[8]
Variable rate		6.78%	[1],[4],[7]	6.78%	[5],[6],[8]
Current Interest Rate		6.78%	[1],[7]	6.78%	[6],[8]
Amortized Cost		$ 20,550,000	[1],[7]	$ 16,550,000	[6],[8]
Governmental Issuer Loans [Member] | Sandy Creek Apartments [Member] | TOB Trust [Member] | Bryan, TX [Member]
Governmental Issuer Loans [Line Items]
Month Acquired		August 2023	[1]	August 2023	[6]
Units | Unit		140	[1]	140	[6]
Maturity Date		Sep. 01, 2026	[1],[2]	Sep. 01, 2026	[3],[6]
Variable rate		7.83%	[1],[4],[9]	7.83%	[5],[6],[10]
Current Interest Rate		7.83%	[1]	7.83%	[6]
Amortized Cost		$ 12,100,000	[1]	$ 12,100,000	[6]

[1] The Freddie Mac servicer that has forward committed to purchase the GIL at maturity is an affiliate of the Partnership (Note 19).

[2] The borrowers may elect to extend the maturity dates by six months upon meeting certain conditions, which may include payment of a non-refundable extension fee.

[3] The borrowers may elect to extend the maturity dates by six months upon meeting certain conditions, which may include payment of a non-refundable extension fee.

[4] The variable index interest rate components are typically subject to floors that range from 0.25% to 0.50%.

[5] The variable index interest rate components are typically subject to floors that range from 0% to 0.85%.

[6] The Freddie Mac servicer that has forward committed to purchase the GIL at maturity is an affiliate of the Partnership (Note 19).

[7] The Partnership has agreed to provide a subordinate GIL after the execution of Freddie Mac’s forward purchase commitment if needed by the property. The potential subordinate GIL amounts are up to $3.8 million, $2.2 million, and $4.2 million for Poppy Grove I, Poppy Grove II, and Poppy Grove III, respectively.

[8] The Partnership has agreed to provide a subordinate GIL after the execution of Freddie Mac’s forward purchase commitment if needed by the property. The potential subordinate GIL amounts are up to $3.8 million, $2.2 million, and $4.2 million for Poppy Grove I, Poppy Grove II, and Poppy Grove III, respectively.

[9] The interest rate will convert to a variable rate of Term SOFR + 2.80% on February 1, 2025.

[10] The interest rate will convert to a variable rate of Term SOFR + 2.80% on February 1, 2025.