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ORGANIZATION AND BASIS OF PRESENTATION - Schedule of Error Corrections and Prior Period Adjustments (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |
Net investment income before taxes |  | $ 17,030 | $ 14,182 | $ 51,124 | $ 43,093
Excise tax benefit (expense) |  |  | (491) |  | (570)
Federal and state income and other tax expenses |  | (492) | (775) | (2,253) | (2,201)
Net investment income |  | $ 16,577 | $ 12,916 | $ 48,631 | $ 40,322
Net investment income per share— basic (in dollars per share) | [1] | $ 0.35 | $ 0.32 | $ 1.05 | $ 1.00
Net investment income per share— diluted (in dollars per share) | [1] | $ 0.35 | $ 0.32 | $ 1.05 | $ 1.00
Income tax benefit (provision) on net realized gain (loss) and net unrealized appreciation (depreciation) |  | $ (1,201) | $ (1,168) | $ 317 | $ (3,379)
Total income tax (provision) benefit |  |  | 0 |  | 0
As Previously Reported |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |
Net investment income before taxes |  |  | 14,182 |  | 43,093
Excise tax benefit (expense) |  |  | 0 |  | 0
Federal and state income and other tax expenses |  |  | 0 |  | 0
Net investment income |  |  | $ 14,182 |  | $ 43,093
Net investment income per share— basic (in dollars per share) |  |  | $ 0.35 |  | $ 1.07
Net investment income per share— diluted (in dollars per share) |  |  | $ 0.35 |  | $ 1.07
Income tax benefit (provision) on net realized gain (loss) and net unrealized appreciation (depreciation) |  |  | $ 0 |  | $ 0
Total income tax (provision) benefit |  |  | (2,434) |  | (6,150)
Adjustments |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |
Net investment income before taxes |  |  | 0 |  | 0
Excise tax benefit (expense) |  |  | (491) |  | (570)
Federal and state income and other tax expenses |  |  | (775) |  | (2,201)
Net investment income |  |  | $ (1,266) |  | $ (2,771)
Net investment income per share— basic (in dollars per share) |  |  | $ (0.03) |  | $ (0.07)
Net investment income per share— diluted (in dollars per share) |  |  | $ (0.03) |  | $ (0.07)
Income tax benefit (provision) on net realized gain (loss) and net unrealized appreciation (depreciation) |  |  | $ (1,168) |  | $ (3,379)
Total income tax (provision) benefit |  |  | $ 2,434 |  | $ 6,150
[1] | As discussed in Note A.3. — Reverse Stock Split, the Fund completed a two-for-one reverse stock split, effective as of December 16, 2024.

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