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BORROWINGS - Schedule of Recurring Fair Value Measurements of Borrowings Using Significant Unobservable Level 3 Inputs (Details) - Significant Unobservable Inputs (Level 3) - Fair Value, Recurring - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2024 | Dec. 31, 2023 | Mar. 31, 2024
Debt Instrument [Line Items] |  |  |  |  |
Credit Facility | $ 91,500 |  | $ 91,500 |  | $ 67,000
Long-Term Debt |  |  |  |  |
Fair Value Measurements of Borrowings Using Significant Unobservable Inputs (Level 3) Reported in Consolidated Statements of Assets and Liabilities |  |  |  |  |
Beginning balance | 8,900 | $ 79,208 | 67,000 | $ 35,171 |
Borrowings | 144,200 | 104,900 | 192,000 | 231,900 |
Repayments | (61,600) | (101,600) | (167,500) | (184,500) |
Unrealized appreciation |  | 92 |  | 29 |
Ending balance | $ 91,500 | $ 82,600 | $ 91,500 | $ 82,600 |

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