v3.26.3
Net Increase (Decrease) in Net Assets per Common Share - Narrative (Details) - shares
 3 Months Ended
Aug. 03, 2020
Sep. 30, 2026
Sep. 30, 2025
Class of Stock [Line Items]      
Antidilutive securities excluded from computation (in shares)   47,505,179  
5.50% Preferred Stock      
Class of Stock [Line Items]      
Dividend rate 5.50% 5.50% 5.50%
6.50% Preferred Stock      
Class of Stock [Line Items]      
Dividend rate 6.50% 6.50% 6.50%