Annual report [Section 13 and 15(d), not S-K Item 405]

BORROWINGS - Schedule of Recurring Fair Value Measurements of Borrowings Using Significant Unobservable Level 3 Inputs (Details)

v3.26.1
BORROWINGS - Schedule of Recurring Fair Value Measurements of Borrowings Using Significant Unobservable Level 3 Inputs (Details) - Significant Unobservable Inputs (Level 3) - Fair Value, Recurring - USD ($)
$ in Thousands
 12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Debt Instrument [Line Items]    
Credit Facility $ 23,946 $ 0
Long-Term Debt    
Fair Value Measurements of Borrowings Using Significant Unobservable Inputs (Level 3) Reported in Consolidated Statements of Assets and Liabilities    
Beginning balance 0 67,000
Borrowings 295,400 214,100
Repayments (271,500) (281,100)
Unrealized appreciation (depreciation) 46 0
Ending balance $ 23,946 $ 0