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Fair Value of Financial Instruments - Summary of Assets Measured at Fair Value on Recurring Basis (Details) - USD ($) | Sep. 30, 2023 | Dec. 31, 2022
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Schedule of Available-for-sale Securities [Line Items] |  |
Total Assets at Fair Value, net | $ 890,880,857 | $ 823,569,267
Fair Value Inputs Level 2 [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Total Assets at Fair Value, net | 14,110,679 | 7,199,198
Fair Value, Inputs, Level 3 [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Total Assets at Fair Value, net | 876,770,178 | 816,370,069
Mortgage Revenue Bonds Held In Trust [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Assets at Fair Value | 842,828,122 | 763,208,945
Mortgage Revenue Bonds Held In Trust [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Assets at Fair Value | 842,828,122 | 763,208,945
Mortgage Revenue Bonds [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Assets at Fair Value | 16,217,828 | 36,199,059
Mortgage Revenue Bonds [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Assets at Fair Value | 16,217,828 | 36,199,059
Bond Purchase Commitment [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Assets at Fair Value |  | 98,929
Liabilities at Fair Value | (112,448) |
Bond Purchase Commitment [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Assets at Fair Value |  | 98,929
Liabilities at Fair Value | (112,448) |
Taxable Mortgage Revenue Bonds [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Assets at Fair Value | 17,611,663 | 16,531,896
Taxable Mortgage Revenue Bonds [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Assets at Fair Value | 17,611,663 | 16,531,896
Derivative Instruments (Reported within Other Assets) [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Assets at Fair Value | 14,348,619 | 7,530,438
Derivative Instruments (Reported within Other Assets) [Member] | Fair Value Inputs Level 2 [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Assets at Fair Value | 14,123,606 | 7,199,198
Derivative Instruments (Reported within Other Assets) [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Assets at Fair Value | 225,013 | $ 331,240
Derivative Swap Liability (reported within other liabilities) |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Liabilities at Fair Value | (12,927) |
Derivative Swap Liability (reported within other liabilities) | Fair Value Inputs Level 2 [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Liabilities at Fair Value | $ (12,927) |

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