INCOME TAXES - Net Assets Resulting From Operations To Estimated RIC Taxable Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Income Tax Disclosure [Abstract]
Net increase in net assets from operations	$ 14,035	$ 23,812
Net unrealized depreciation (appreciation) on investments	15,535	(12,038)
(Expense/loss) income/gain recognized for tax on pass-through entities	(7)	(4,202)
Loss (gain) recognized on dispositions	324	(1,641)
Capital loss carryover	(1,551)	17,932
Net operating loss (income) - wholly-owned subsidiary	51	(1,796)
Non-deductible tax expense	217	93
Loss on extinguishment of debt	(682)	(682)
Non-deductible compensation	1,514	892
Compensation related book/tax differences	(7,823)	(5,824)
Interest on non-accrual loans	1,633	1,415
Other book/tax differences	574	1,610
Estimated distributable income before deductions for distributions	23,820	$ 19,571
Capital loss carryover	$ 58,500