EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Earnings Per Share [Abstract]
Numerator for basic earnings per share	$ 25,619	$ 22,684	$ 52,620	$ 36,719
Adjustment for income allocated to participating securities	(286)	0	(587)	0
Numerator for basic earnings per common share	$ 25,333	$ 22,684	$ 52,033	$ 36,719
Denominator for basic weighted average common share (in shares)	55,544,095	47,242,863	54,536,084	46,458,435
Basic earnings per common share (in usd per share)	$ 0.46	$ 0.48	$ 0.95	$ 0.79
Numerator for increase in net assets per share	$ 25,333	$ 22,684	$ 52,033	$ 36,719
Adjustment for interest and amortization on 2029 Convertible Notes	3,317	0	6,633	0
Numerator for diluted earnings per common share	$ 28,650	$ 22,684	$ 58,666	$ 36,719
Weighted average common shares outstanding – basic (in shares)	55,544,095	47,242,863	54,536,084	46,458,435
Adjustment for dilutive effect of 2029 Convertible Notes	9,286,000	0	9,273,000	0
Denominator for diluted weighted average common shares (in shares)	64,830,413	47,242,863	63,809,345	46,458,435
Diluted earnings per common share (in usd per share)	$ 0.44	$ 0.48	$ 0.92	$ 0.79
Anti-dilutive securities	0	0	0	0