Quarterly report pursuant to Section 13 or 15(d)

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)

v3.24.0.1
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)
$ in Thousands
 3 Months Ended
Dec. 31, 2023
USD ($)
investment
loan
Dec. 31, 2022
USD ($)
Sep. 30, 2023
USD ($)
loan
investment
Schedule of Investments [Line Items]      
Cost $ 759,634   $ 722,269 [1]
Fair Value 749,985   $ 704,815 [1]
Total interest income (excluding PIK interest income) 21,588 $ 17,369  
PIK interest income 1,408 998  
OID      
Schedule of Investments [Line Items]      
Fair Value $ 700    
Number of loans | loan 4   4
Total interest income (excluding PIK interest income) $ 52 49  
PIK      
Schedule of Investments [Line Items]      
Number of investments | investment 10   8
Proceeds from interest received $ 0 $ 400  
Edge Adhesives Holdings Inc      
Schedule of Investments [Line Items]      
Cost $ 6,100   $ 6,100
Cost percentage 0.90%   0.90%
Fair Value $ 2,800   $ 2,900
Fair value percentage 0.40%   0.50%
[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.