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BORROWINGS - Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation (Details) - Significant Unobservable Inputs (Level 3) - Fair Value, Recurring - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
Debt Instrument [Line Items] |  |
Credit Facility | $ 67,000 | $ 35,171
Long-Term Debt |  |
Fair Value Measurements of Borrowings Using Significant Unobservable Inputs (Level 3) Reported in Consolidated Statements of Assets and Liabilities |  |
Beginning balance | 35,171 | 0
Borrowings | 242,300 | 102,500
Repayments | (210,500) | (67,300)
Unrealized appreciation (depreciation) | 29 | (29)
Ending balance | $ 67,000 | $ 35,171

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