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BORROWINGS - Fair Value Narrative (Details) - USD ($) $ in Thousands |  | 12 Months Ended
--- | --- | ---
Apr. 10, 2023 | Mar. 31, 2024 | Mar. 31, 2023
Debt Instrument [Line Items] |  |  |  |  |
Investments owned, fair value |  | $ 920,504 | [1] | $ 753,543 | [2]
Collateral Pledged |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Investments owned, fair value |  | $ 717,300 |  | $ 639,500 |
Credit Facility | Line of Credit |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Unused fee percentage |  | 1.00% |  | 1.00% |
Credit Facility | Revolving Line of Credit | Line of Credit | SOFR |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt instrument, variable rate floor |  | 0.35% |  |  |
Debt instrument, basis spread on variable rate | 0.11% | 3.25% |  |  |
Credit Facility | Revolving Line of Credit | Line of Credit | LIBOR |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt instrument, variable rate floor |  |  |  | 0.50% |
Debt instrument, basis spread on variable rate |  |  |  | 2.94% |
[1] | Cumulative gross unrealized appreciation for federal income tax purposes is $180.5 million; cumulative gross unrealized depreciation for federal income tax purposes is $115.8 million. Cumulative net unrealized appreciation is $64.7 million, based on a tax cost of $855.8 million.
[2] | Cumulative gross unrealized appreciation for federal income tax purposes is $150.4 million; cumulative gross unrealized depreciation for federal income tax purposes is $119.3 million. Cumulative net unrealized appreciation is $31.1 million, based on a tax cost of $722.4 million.

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