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Portfolio Company Investments - Schedule of Investments Type With Corresponding Percentage of Total Portfolio Investments (Parenthetical) (Details) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2024 | Dec. 31, 2023
Summary of Investment Holdings [Line Items] |  |
Percentage of Fair Value | 100.00% | 100.00%
Percentage of Cost | 100.00% | 100.00%
Unitranche Investments [Member] |  |
Summary of Investment Holdings [Line Items] |  |
Percentage of Fair Value | 37.30% | 37.60%
Percentage of Cost | 38.00% | 38.50%

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