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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