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v3.25.4

Summary of Significant Accounting Policies - Additional Information (Details) - USD ($) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2025 | Dec. 31, 2024
Line of Credit Facility [Line Items] |  |  |  |
Investment aggregate capitalization | 5.00% |  |  |
Investments aggregating capitalization valuations of percentage | 5.00% |  |  |
Minimum aggregate percentage of assets required for applicability of foregoing investment policies | 5.00% |  |  |
Restricted cash | $ 0 |  | $ 0 |
Percentage of foreign currency denominated investments | 0.004 |  | 0.004 |
Fair Value | $ 1,533,302,472 |  | $ 1,794,758,336 |
Cash and cash equivalents | 61,075,494 |  | 91,589,702 |
Income Approach | Five Senior Debt |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Fair Value | 37,900,000 |  |  |
Income Approach | One Senior Debt |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Fair Value | 7,600,000 |  |  |
Income Approach | Two Equity Positions |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Fair Value | 15,900,000 |  |  |
Valuation Technique, Consensus Pricing Model | One Senior Debt |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Fair Value | 5,600,000 |  |  |
Paid in Capital in Excess of Par |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Paid-in capital | 2,252,164 |  | 487,501,546 |
Distributable earnings (loss) |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Accumulated Earnings (Loss) | (2,252,164) |  | (487,501,546) |
BlackRock Capital Investment Corporation |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Reclassification between accumulated earnings and paid-in-capital including merger |  |  | 488,077,104 |
Interest Rate Swap |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Notional amount of interest rate swap | $ 35,000,000 |  |  |
Fixed interest rate | 2.633% |  |  |
Debt Investments |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Fair Value | $ 1,418,443,590 | [1] | 1,642,572,999 | [2],[3]
JPMorgan U.S. Government Money Market Fund |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Cash and cash equivalents | $ 3,800,000 |  |  |
Percentage of cash and cash equivalents net assets held | 0.60% |  |  |
Yield percentage of cash equivalents | 3.66% |  |  |
JPMorgan U.S. Treasury Plus Money Market Fund |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Cash and cash equivalents |  |  | $ 1,400,000 |
Percentage of cash and cash equivalents net assets held |  |  | 0.20% |
Yield percentage of cash equivalents |  |  | 4.42% |
Allspring Government Money Market Fund |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Cash and cash equivalents | $ 47,600,000 |  | $ 59,200,000 |
Percentage of cash and cash equivalents net assets held | 8.00% |  | 7.50% |
Yield percentage of cash equivalents | 3.65% |  | 4.36% |
[1] | Debt investments include investments in bank debt that generally are bought and sold among institutional investors in transactions not subject to registration under the Securities Act of 1933 (the “Securities Act”). Such transactions are generally subject to contractual restrictions, such as approval of the agent or borrower.
[2] | Debt investments include investments in bank debt that generally are bought and sold among institutional investors in transactions not subject to registration under the Securities Act. Such transactions are generally subject to contractual restrictions, such as approval of the agent or borrower.
[3] | Inputs in the valuation of this investment included certain unobservable inputs that were significant to the valuation as a whole.

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