Quarterly report [Sections 13 or 15(d)]

INVESTMENTS - Schedule of Investment Principal Repayments (Details)

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INVESTMENTS - Schedule of Investment Principal Repayments (Details) - USD ($)
$ in Thousands
Sep. 30, 2025
Mar. 31, 2025
 [1]
Investments, Debt and Equity Securities [Abstract]    
Remainder of fiscal year $ 15,000  
2027 61,186  
2028 120,282  
2029 269,844  
2030 159,506  
Thereafter 111,680  
Total contractual repayments 737,498  
Investments in equity securities 299,702  
Total cost basis of investments held as of September 30, 2025: $ 1,037,200 $ 939,066
[1] Cumulative gross unrealized appreciation for federal income tax purposes is $183.3 million; cumulative gross unrealized depreciation for federal income tax purposes is $144.9 million. Cumulative net unrealized appreciation is $38.5 million, based on a tax cost of $940.9 million.