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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, 2024 | Dec. 31, 2023
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Mortgage Revenue Bonds [Member] |  |  |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |  |  |
Weighted Average Effective Yields | [1] | 5.50% | 4.80% | [2]
Mortgage Revenue Bonds [Member] | Effective rate - minimum [Member] |  |  |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |  |  |
Range of Effective Yields |  | 3.70% | 2.30% | [2]
Mortgage Revenue Bonds [Member] | Effective rate - maximum [Member] |  |  |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |  |  |
Range of Effective Yields |  | 8.40% | 7.70% | [2]
Taxable Mortgage Revenue Bonds [Member] |  |  |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |  |  |
Weighted Average Effective Yields | [1] | 8.70% | 8.80% |
Taxable Mortgage Revenue Bonds [Member] | Effective rate - minimum [Member] |  |  |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |  |  |
Range of Effective Yields |  | 7.10% | 6.50% |
Taxable Mortgage Revenue Bonds [Member] | Effective rate - maximum [Member] |  |  |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |  |  |
Range of Effective Yields |  | 11.90% | 11.90% |
Bond Purchase Commitment [Member] |  |  |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |  |  |
Range of Effective Yields |  |  | 4.10% |
Weighted Average Effective Yields | [1] |  | 4.10% |
[1] | Weighted by the total principal outstanding of all the respective securities as of the reporting date.
[2] | Mortgage revenue bonds excludes the Provision Center 2014-1 MRB as the bankruptcy process was nearly complete.

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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