Annual report pursuant to Section 13 and 15(d)

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

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BORROWINGS - Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation (Details) - Significant Unobservable Inputs (Level 3) - Fair Value, Recurring - USD ($)
$ in Thousands
12 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Debt Instrument [Line Items]    
Credit Facility $ 35,171 $ 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 22,400
Borrowings 102,500 111,700
Repayments (67,300) (134,100)
Unrealized depreciation (29)  
Ending balance $ 35,171 $ 0