v3.25.2
Investments - Industry and Geographic Dispersion of Investment Portfolio as Percentage of Total Fair Value of Investments (Detail)
Jun. 30, 2025
Dec. 31, 2024
Investment Holdings [Line Items]    
Percentage of total fair value of investment 100.00% 100.00%
Healthcare Supplies    
Investment Holdings [Line Items]    
Percentage of total fair value of investment 14.10% 17.00%
Commercial and Professional Services    
Investment Holdings [Line Items]    
Percentage of total fair value of investment 11.30% 13.00%
Insurance Services    
Investment Holdings [Line Items]    
Percentage of total fair value of investment 11.20% 0.00%
Engineered Products    
Investment Holdings [Line Items]    
Percentage of total fair value of investment 10.60% 12.40%
Retirement Plan Services    
Investment Holdings [Line Items]    
Percentage of total fair value of investment 9.40% 10.10%
Legal Services    
Investment Holdings [Line Items]    
Percentage of total fair value of investment 9.30% 0.00%
Visual Safety Solutions    
Investment Holdings [Line Items]    
Percentage of total fair value of investment 8.70% 7.90%
Franchise Consulting Services    
Investment Holdings [Line Items]    
Percentage of total fair value of investment 8.30% 0.00%
Information Services and Advisory Solutions    
Investment Holdings [Line Items]    
Percentage of total fair value of investment 5.90% 12.20%
Real Estate Services    
Investment Holdings [Line Items]    
Percentage of total fair value of investment 5.40% 6.30%
Sanitation Products    
Investment Holdings [Line Items]    
Percentage of total fair value of investment 3.70% 4.70%
Hobby Goods and Supplies    
Investment Holdings [Line Items]    
Percentage of total fair value of investment 2.10% 2.50%
Insurance Services    
Investment Holdings [Line Items]    
Percentage of total fair value of investment 0.00% 13.90%