v3.26.3
INVESTMENTS - Concentration of Credit Risk and Investments Denominated in Foreign Currencies (Details) - investment
9 Months Ended 12 Months Ended
Sep. 30, 2026
Dec. 31, 2025
Investment Denominated in Canadian Dollars    
Schedule of Investments [Line Items]    
Number of investments 3 2
Investment Denominated in Danish Kroner    
Schedule of Investments [Line Items]    
Number of investments 2 2
Investment Denominated in Australian Dollars    
Schedule of Investments [Line Items]    
Number of investments 12 11
Investment Denominated in New Zealand Dollars    
Schedule of Investments [Line Items]    
Number of investments 2 2
Investment Denominated in Norwegian Krone    
Schedule of Investments [Line Items]    
Number of investments 1 1
Investment Denominated in Swiss Francs    
Schedule of Investments [Line Items]    
Number of investments 1 2
Investment Denominated in Swedish Krone    
Schedule of Investments [Line Items]    
Number of investments 1 1
Investment Denominated in Euros    
Schedule of Investments [Line Items]    
Number of investments 73 68
Investment Denominated in British Pounds Sterling    
Schedule of Investments [Line Items]    
Number of investments 35 31
Single Portfolio Company | Percentage of Total Portfolio, at Fair Value | Portfolio Company Investment Risk    
Schedule of Investments [Line Items]    
Concentration risk, percent 6.40% 6.40%