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Investments in Affiliates (Tables) | 12 Months Ended
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Dec. 31, 2025
Investments in and Advances to Affiliates, Schedule of Investments [Abstract] |
Summary of Transactions in, and Earnings from, Investments in Affiliates | The following is a summary of the transactions in, and earnings from, investments in affiliates for the year ended December 31, 2025.
|  | Value 12/31/2024 |  | Purchases at Cost |  | Proceeds from Sales |  | Change in Unrealized Appreciation (Depreciation) |  | Realized Gain (Loss) |  | Value 12/31/2025 |  | Dividend Income |
Investments in Affiliated Money Market Funds: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Invesco Government & Agency Portfolio, Institutional Class |  | $ | 36,311,736 |  | $ | 132,560,246 |  | $ | (37,426,367 | ) | $ | — |  | $ | — |  | $ | 131,445,615 |  | $ | 4,573,297 |
The following is a summary of the transactions in, and earnings from, investments in affiliates for the year ended December 31, 2024.
|  | Value 12/31/2023 |  | Purchases at Cost |  | Proceeds from Sales |  | Change in Unrealized Appreciation (Depreciation) |  | Realized Gain (Loss) |  | Value 12/31/2024 |  | Dividend Income |
Investments in Affiliated Money Market Funds: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Invesco Government & Agency Portfolio, Institutional Class |  | $ | 35,846,173 |  | $ | 50,056,201 |  | $ | (49,590,638 | ) | $ | — |  | $ | — |  | $ | 36,311,736 |  | $ | 1,585,659 |
The following is a summary of the transactions in, and earnings from, investments in affiliates for the year ended December 31, 2023.
|  | Value 12/31/2022 |  | Purchases at Cost |  | Proceeds from Sales |  | Change in Unrealized Appreciation (Depreciation) |  | Realized Gain (Loss) |  | Value 12/31/2023 |  | Dividend Income |
Investments in Affiliated Money Market Funds: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Invesco Government & Agency Portfolio, Institutional Class |  | $ | 68,087,284 |  | $ | 105,429,033 |  | $ | (137,670,144 | ) | $ | — |  | $ | — |  | $ | 35,846,173 |  | $ | 1,944,661 |

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- Definition Tabular disclosure of investments in and advances to affiliates. Does not include the tabular disclosure of the disaggregation of investments in and advances to affiliates across legal entities. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Section S99 -Paragraph 6 -Subparagraph (SX 210.12-14) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477271/946-320-S99-6 + Details
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