Fair Value of Financial Instruments - Summary of Range of Effective Yields and Weighted Average Effective Yields of Partnership's Investments (Details)

Mar. 31, 2026

Dec. 31, 2025

Mortgage Revenue Bonds [Member]

Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]

Weighted Average Effective Yields

^[1]

5.20%

5.50%

Mortgage Revenue Bonds [Member] | Effective rate - minimum [Member]

Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]

Range of Effective Yields

2.70%

2.40%

Mortgage Revenue Bonds [Member] | Effective rate - maximum [Member]

Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]

Range of Effective Yields

9.70%

9.80%

Taxable Mortgage Revenue Bonds [Member]

Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]

Weighted Average Effective Yields

^[1]

7.50%

7.60%

Taxable Mortgage Revenue Bonds [Member] | Effective rate - minimum [Member]

Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]

Range of Effective Yields

6.40%

6.20%

Taxable Mortgage Revenue Bonds [Member] | Effective rate - maximum [Member]

Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]

Range of Effective Yields

12.60%

12.70%

Bond Purchase Commitment [Member]

Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]

Range of Effective Yields

5.60%

5.40%

Weighted Average Effective Yields

^[1]

5.60%

5.40%

[1]	Weighted by the total principal outstanding of all the respective securities as of the reporting date.