Governmental Issuer Loans - Summary of Partnership's GIL Investments (Parenthetical) (Details) - USD ($)	Dec. 31, 2022	Dec. 31, 2021
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%