Transactions with Related Parties - Additional Information (Details) - USD ($)		3 Months Ended	9 Months Ended
		Sep. 30, 2021	Sep. 30, 2021	Dec. 31, 2020
Related Party Transaction [Line Items]
Fee paid	[1]	$ 9,750	$ 9,750
Receivables due from unconsolidated entities		136,000	136,000	$ 53,000
Outstanding liabilities due to related parties		412,000	412,000	$ 344,000
Greystone Select [Member]
Related Party Transaction [Line Items]
Fee paid		$ 0	$ 0

[1] The Partnership has an agreement with an affiliate of Greystone, in which the Greystone affiliate is entitled to receive a referral fee equal to 0.25% of the original principal amount of executed tax-exempt loan or tax-exempt bond transactions introduced to the Partnership by the Greystone affiliate. The term of the agreement ends December 31, 2021, unless the parties mutually agree to extend the term.