Quarterly report pursuant to Section 13 or 15(d)

BORROWINGS - Schedule of Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation (Details)

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BORROWINGS - Schedule of Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation (Details) - Significant Unobservable Inputs (Level 3) - Fair Value, Recurring - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2023
Dec. 31, 2022
Mar. 31, 2023
Debt Instrument [Line Items]          
Recurring Fair Value Measurements Reported in Consolidated Statements of Assets and Liabilities Using Significant Unobservable Inputs (Level 3) $ 82,600   $ 82,600   $ 35,171
Long-Term Debt          
Fair Value Measurements of Borrowings Using Significant Unobservable Inputs (Level 3) Reported in Consolidated Statements of Assets and Liabilities          
Beginning balance 79,208 $ 16,600 35,171 $ 0  
Borrowings 104,900 41,400 231,900 82,900  
Repayments (101,600) (28,400) (184,500) (53,300)  
Unrealized appreciation (depreciation) 92 0 29 0  
Ending balance $ 82,600 $ 29,600 $ 82,600 $ 29,600