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Fair Value of Financial Instruments - Summary of Range of Effective Yields and Weighted Average Effective Yields of Partnership's Investments (Details) | Dec. 31, 2022 | Dec. 31, 2021
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Taxable Mortgage Revenue Bonds [Member] |  |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |  |
Weighted Average Effective Yields | [1] | 7.60% | 5.90%
Taxable Mortgage Revenue Bonds [Member] | Effective rate - minimum [Member] |  |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |  |
Range of Effective Yields |  | 6.50% | 4.00%
Taxable Mortgage Revenue Bonds [Member] | Effective rate - maximum [Member] |  |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |  |
Range of Effective Yields |  | 11.40% | 8.10%
Bond Purchase Commitment [Member] |  |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |  |
Range of Effective Yields |  | 4.50% |
Weighted Average Effective Yields | [1] | 4.50% | 3.20%
Bond Purchase Commitment [Member] | Effective rate - minimum [Member] |  |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |  |
Range of Effective Yields |  |  | 3.20%
Bond Purchase Commitment [Member] | Effective rate - maximum [Member] |  |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |  |
Range of Effective Yields |  |  | 3.30%
Mortgage Revenue Bonds [Member] |  |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |  |
Weighted Average Effective Yields | [1] | 5.10% | 3.10%
Mortgage Revenue Bonds [Member] | Effective rate - minimum [Member] |  |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |  |
Range of Effective Yields |  | 2.60% | 0.90%
Mortgage Revenue Bonds [Member] | Effective rate - maximum [Member] |  |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |  |
Range of Effective Yields |  | 20.30% | 19.10%
[1] | Weighted by the total principal outstanding of all the respective securities as of the reporting date.

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