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Fair Value Measurements - Additional Information (Details) - USD ($) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Fair value, assets, level 1 to level 2 transfers, amount | $ 0 | $ 0 | $ 0 | $ 0 |
Fair value, assets, level 2 to level 1 transfers, amount | $ 0 | 0 | 0 | 0 |
Fair value, assets, transfers into level 3, amount |  |  | 0 | 0 |
Fair value, assets, transfers out of level 3, amount |  |  | $ 0 | 0 |
16 and 21 Portfolio Company Investment |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Percentage of portfolio investments at fair value | 34.10% |  | 34.10% |  | 27.50%
Level 3 |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Net change in unrealized appreciation (depreciation) on investments | $ (521,000) | $ (2,861,000) | $ (6,578,000) | $ 1,099,000 |
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] | Unrealized Gain (Loss), Investment and Derivative, Operating, before Tax | Unrealized Gain (Loss), Investment and Derivative, Operating, before Tax | Unrealized Gain (Loss), Investment and Derivative, Operating, before Tax | Unrealized Gain (Loss), Investment and Derivative, Operating, before Tax |

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