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INCOME TAXES - Net Assets Resulting from Operations to Estimated RIC Taxable Income (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2024 | Dec. 31, 2023
Income Tax Disclosure [Abstract] |  |  |  |
Net increase in net assets from operations | $ 16,268 | $ 23,484 | $ 52,987 | $ 69,920
Net unrealized depreciation (appreciation) on investments |  |  | 14,574 | (9,906)
(Expense/loss) income/gain recognized for tax on pass-through entities |  |  | (80) | (4,123)
Realized loss (gain) book/tax differences |  |  | 8,580 | (678)
Capital loss carryover |  |  | 12,987 | 24,429
Net operating income - wholly-owned subsidiary |  |  | (2,705) | (4,931)
Dividend income from wholly-owned subsidiary |  |  | (962) | 0
Non-deductible tax expense |  |  | 1,016 | 640
Loss on extinguishment of debt |  |  | (2,045) | (2,045)
Non-deductible compensation |  |  | 5,164 | 2,772
Compensation related book/tax differences |  |  | (3,887) | (466)
Interest on non-accrual loans |  |  | 10,513 | 3,959
Other book/tax differences |  |  | (237) | 1,434
Estimated distributable income before deductions for distributions |  |  | 95,905 | $ 81,005
Capital loss carryover | $ 72,300 |  | $ 72,300 |

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