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