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 6 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Mar. 31, 2023
Debt Instrument [Line Items]          
Borrowings outstanding at cost $ 79,300,000   $ 79,300,000   $ 35,200,000
Credit Facility | Revolving Line of Credit | Line of Credit          
Debt Instrument [Line Items]          
Commitment amount 180,000,000   180,000,000   180,000,000
Borrowings outstanding at cost 79,300,000   79,300,000   35,200,000
Availability 100,700,000   100,700,000   144,800,000
Weighted-average borrowings outstanding $ 50,373,000 $ 11,671,000 $ 46,967,000 $ 5,867,000  
Effective interest rate 10.90% 20.10% 11.00% 35.50%  
Commitment (unused) fees incurred $ 319,000 $ 431,000 $ 664,000 $ 886,000  
Adjusted availability $ 100,700,000   $ 100,700,000   $ 144,800,000