Fair Value of Financial Instruments - Summary of Activity Related to Level 3 Assets and Liabilities (Details) - Fair Value, Inputs, Level 3 [Member] - USD ($)		3 Months Ended
		Mar. 31, 2023		Mar. 31, 2022
Schedule of Available-for-sale Securities [Line Items]
Assets at Fair Value, beginning balance		$ 816,370,069		$ 798,246,109
Total gains (losses) (realized/unrealized) [Abstract]
Total gain (losses) included in earnings (interest income and interest expense)		$ 1,388,828		$ 1,989,038
Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]		Interest Income (Expense), Net		Interest Income (Expense), Net
Fair Value, Net Derivative Asset (Liability), Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]		Interest Income (Expense), Net		Interest Income (Expense), Net
Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Asset, Gain (Loss), Statement of Other Comprehensive Income or Comprehensive Income [Extensible Enumeration]		OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, after Tax		OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, after Tax
Total gain (losses) included in other comprehensive (loss) income		$ 20,510,089		$ (48,570,737)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases		62,427,813		75,690,000
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements		(14,670,016)		(81,459,036)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Other	[1]			(860,533)
Assets at Fair Value, ending balance		886,026,783		745,034,841
Total amount of gains (losses) for the period included in earnings attributable to the change in unrealized gains (losses) relating to assets or liabilities held		10,943		139,663
Interest Rate Derivative Instruments [Member]
Schedule of Available-for-sale Securities [Line Items]
Derivative Assets (Liabilities) at Fair Value, beginning balance		331,240		343,418
Total gains (losses) (realized/unrealized) [Abstract]
Total gain (losses) included in earnings (interest income and interest expense)		1,317,385		1,874,738
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Settlements		(1,363,480)		(1,820,498)
Derivative Assets (Liabilities) at Fair Value, ending balance		285,145		397,658
Total amount of gains (losses) for the period included in earnings attributable to the change in unrealized gains (losses) relating to assets or liabilities held		(6,024)		134,384
Bond Purchase Commitment [Member]
Schedule of Available-for-sale Securities [Line Items]
Assets at Fair Value, beginning balance		98,929		964,404
Total gains (losses) (realized/unrealized) [Abstract]
Total gain (losses) included in other comprehensive (loss) income		112,547		(819,081)
Assets at Fair Value, ending balance		211,476		145,323
Taxable Mortgage Revenue Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Assets at Fair Value, beginning balance		16,531,896		3,428,443
Total gains (losses) (realized/unrealized) [Abstract]
Total gain (losses) included in earnings (interest income and interest expense)		(6,050)
Total gain (losses) included in other comprehensive (loss) income		(181,509)		(214,923)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases		1,805,000		6,325,000
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements		(2,797)		(2,558)
Assets at Fair Value, ending balance		18,146,540		9,535,962
Mortgage Revenue Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Assets at Fair Value, beginning balance		799,408,004	[2]	793,509,844	[3]
Total gains (losses) (realized/unrealized) [Abstract]
Total gain (losses) included in earnings (interest income and interest expense)		77,493	[2]	114,300	[3]
Total gain (losses) included in other comprehensive (loss) income		20,579,051	[2]	(47,536,733)	[3]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases		60,622,813	[2]	69,365,000	[3]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements		(13,303,739)	[2]	(79,635,980)	[3]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Other	[1],[3]			(860,533)
Assets at Fair Value, ending balance		867,383,622	[2]	734,955,898	[3]
Total amount of gains (losses) for the period included in earnings attributable to the change in unrealized gains (losses) relating to assets or liabilities held		$ 16,967	[2]	$ 5,279	[3]

[1] The other line is related to a re-allocation of the loan loss allowance upon restructuring of the Live 929 Apartments MRBs and property loan.

[2] Mortgage revenue bonds includes both bonds held in trust as well as those held by the Partnership.

[3] Mortgage revenue bonds includes both bonds held in trust as well as those held by the Partnership.