Quarterly report [Sections 13 or 15(d)]

BORROWINGS - Schedule of Line of Credit Facilities (Details)

v3.26.1
BORROWINGS - Schedule of Line of Credit Facilities (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2026
Mar. 31, 2025
Sep. 30, 2025
Debt Instrument [Line Items]          
Line of credit outstanding, at cost $ 199,800   $ 199,800   $ 0
Credit Facility | Revolving Line of Credit | Line of Credit          
Debt Instrument [Line Items]          
Commitment amount 365,000   365,000   320,000
Line of credit outstanding, at cost 199,800   199,800   0
Availability 151,078   151,078   $ 307,467
Weighted average borrowings outstanding, at cost $ 183,708 $ 53,680 $ 152,429 $ 39,787  
Weighted average interest rate 6.90% 11.40% 7.40% 13.90%  
Commitment (unused) fees incurred $ 257 $ 611 $ 677 $ 1,289