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Investments in Affiliates (Tables) | 9 Months Ended
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Sep. 30, 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 three and nine months ended September 30, 2025.
|  | Value 06/30/2025 |  | Purchases at Cost |  | Proceeds from Sales |  | Change in Unrealized Appreciation (Depreciation) |  | Realized Gain (Loss) |  | Value 09/30/2025 |  | Dividend Income |
Investments in Affiliated Money Market Funds: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Invesco Government & Agency Portfolio, Institutional Class |  | $ | 203,374,505 |  | $ | 66,394,889 |  | $ | (124,810,619 | ) | $ | — |  | $ | — |  | $ | 144,958,775 |  | $ | 1,873,948 |
|  | Value 12/31/2024 |  | Purchases at Cost |  | Proceeds from Sales |  | Change in Unrealized Appreciation (Depreciation) |  | Realized Gain (Loss) |  | Value 09/30/2025 |  | Dividend Income |
Investments in Affiliated Money Market Funds: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Invesco Government & Agency Portfolio, Institutional Class |  | $ | 279,113,690 |  | $ | 639,916,156 |  | $ | (774,071,071 | ) | $ | — |  | $ | — |  | $ | 144,958,775 |  | $ | 6,659,666 |
The following is a summary of the transactions in, and earnings from, investments in affiliates for the three and nine months ended September 30, 2024.
|  | Value 06/30/2024 |  | Purchases at Cost |  | Proceeds from Sales |  | Change in Unrealized Appreciation (Depreciation) |  | Realized Gain (Loss) |  | Value 09/30/2024 |  | Dividend Income |
Investments in Affiliated Money Market Funds: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Invesco Government & Agency Portfolio, Institutional Class |  | $ | 243,373,418 |  | $ | 196,908,586 |  | $ | (320,324,707 | ) | $ | — |  | $ | — |  | $ | 119,957,297 |  | $ | 2,009,653 |
|  | Value 12/31/2023 |  | Purchases at Cost |  | Proceeds from Sales |  | Change in Unrealized Appreciation (Depreciation) |  | Realized Gain (Loss) |  | Value 09/30/2024 |  | Dividend Income |
Investments in Affiliated Money Market Funds: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Invesco Government & Agency Portfolio, Institutional Class |  | $ | 111,534,057 |  | $ | 686,047,529 |  | $ | (677,624,289 | ) | $ | — |  | $ | — |  | $ | 119,957,297 |  | $ | 7,219,100 |

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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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