Quarterly report pursuant to Section 13 or 15(d)

BORROWINGS - Fair Value Narrative (Details)

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BORROWINGS - Fair Value Narrative (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2023
Sep. 30, 2023
Debt Instrument [Line Items]    
Fair Value $ 749,985 $ 704,815 [1]
Collateral Pledged    
Debt Instrument [Line Items]    
Fair Value $ 678,900 $ 628,300
Credit Facility | Line of Credit | Revolving Line of Credit    
Debt Instrument [Line Items]    
Unused fee percentage 0.75% 1.00%
Credit Facility | Line of Credit | Revolving Line of Credit | Secured Overnight Financing Rate (SOFR)    
Debt Instrument [Line Items]    
Debt instrument, basis spread on variable rate 3.10% 3.10%
[1] Investment was exited subsequent to December 31, 2023. Refer to Note 12 – Subsequent Events in the accompanying Notes to the Consolidated Financial Statements for additional information.