Quarterly report pursuant to Section 13 or 15(d)

BORROWINGS - Schedule of Line of Credit Facilities (Details)

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BORROWINGS - Schedule of Line of Credit Facilities (Details) - USD ($)
3 Months Ended 9 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2023
Dec. 31, 2022
Oct. 30, 2023
Oct. 29, 2023
Mar. 31, 2023
Debt Instrument [Line Items]              
Borrowings outstanding at cost $ 82,600,000   $ 82,600,000       $ 35,200,000
Credit Facility | Revolving Line of Credit | Line of Credit              
Debt Instrument [Line Items]              
Commitment amount 135,000,000   135,000,000   $ 135,000,000 $ 180,000,000 180,000,000
Borrowings outstanding at cost 82,600,000   82,600,000       35,200,000
Availability 52,400,000   52,400,000       144,800,000
Weighted-average borrowings outstanding $ 77,359,000 $ 26,054,000 $ 57,135,000 $ 12,621,000      
Effective interest rate 9.20% 12.80% 10.20% 19.80%      
Commitment (unused) fees incurred $ 113,000 $ 394,000 $ 777,000 $ 1,279,000      
Adjusted availability $ 52,400,000   $ 52,400,000       $ 144,800,000