Quarterly report [Sections 13 or 15(d)]

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

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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
 3 Months Ended 9 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2025
Dec. 31, 2024
Mar. 31, 2025
Debt Instrument [Line Items]          
Credit Facility $ 128,961   $ 128,961   $ 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 98,053 $ 8,900 0 $ 67,000  
Borrowings 125,300 144,200 278,600 192,000  
Repayments (94,400) (61,600) (150,000) (167,500)  
Unrealized appreciation 8   361    
Ending balance $ 128,961 $ 91,500 $ 128,961 $ 91,500