Quarterly report [Sections 13 or 15(d)]

FAIR VALUE HIERARCHY FOR INVESTMENTS???PORTFOLIO COMPOSITION - Percentage of Portfolio Investments by Geographical Regions (Details)

v3.25.3
FAIR VALUE HIERARCHY FOR INVESTMENTS—PORTFOLIO COMPOSITION - Percentage of Portfolio Investments by Geographical Regions (Details)
 9 Months Ended 12 Months Ended
Sep. 30, 2025
Dec. 31, 2024
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Concentration risk, percentage (as a percent) 100.00% 100.00%
Investment Owned, At Cost | Geographic Concentration Risk    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Concentration risk, percentage (as a percent) 100.00% 100.00%
Investment Owned, At Fair Value | Geographic Concentration Risk    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Concentration risk, percentage (as a percent) 100.00% 100.00%
Midwest | Investment Owned, At Cost | Geographic Concentration Risk    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Concentration risk, percentage (as a percent) 21.30% 21.50%
Midwest | Investment Owned, At Fair Value | Geographic Concentration Risk    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Concentration risk, percentage (as a percent) 21.80% 22.70%
West | Investment Owned, At Cost | Geographic Concentration Risk    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Concentration risk, percentage (as a percent) 20.80% 18.70%
West | Investment Owned, At Fair Value | Geographic Concentration Risk    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Concentration risk, percentage (as a percent) 20.80% 18.40%
Southwest | Investment Owned, At Cost | Geographic Concentration Risk    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Concentration risk, percentage (as a percent) 20.10% 18.20%
Southwest | Investment Owned, At Fair Value | Geographic Concentration Risk    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Concentration risk, percentage (as a percent) 22.50% 20.40%
Northeast | Investment Owned, At Cost | Geographic Concentration Risk    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Concentration risk, percentage (as a percent) 18.60% 22.40%
Northeast | Investment Owned, At Fair Value | Geographic Concentration Risk    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Concentration risk, percentage (as a percent) 17.50% 22.60%
Southeast | Investment Owned, At Cost | Geographic Concentration Risk    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Concentration risk, percentage (as a percent) 17.10% 17.00%
Southeast | Investment Owned, At Fair Value | Geographic Concentration Risk    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Concentration risk, percentage (as a percent) 15.40% 13.80%
Canada | Investment Owned, At Cost | Geographic Concentration Risk    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Concentration risk, percentage (as a percent) 1.10% 1.20%
Canada | Investment Owned, At Fair Value | Geographic Concentration Risk    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Concentration risk, percentage (as a percent) 1.00% 1.10%
Other Non-United States | Investment Owned, At Cost | Geographic Concentration Risk    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Concentration risk, percentage (as a percent) 1.00% 1.00%
Other Non-United States | Investment Owned, At Fair Value | Geographic Concentration Risk    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Concentration risk, percentage (as a percent) 1.00% 1.00%