v3.25.2
Significant Accounting Policies (Details)
 3 Months Ended 12 Months Ended
Jan. 17, 2025
Dec. 27, 2024
Oct. 30, 2020
Aug. 03, 2020
Dec. 31, 2024
Jun. 30, 2025
USD ($)
investment
Jun. 30, 2024
USD ($)
investment
Jun. 30, 2023
USD ($)
Investments in and Advances to Affiliates, Activity [Line Items]                
Interest Income           $ 671,109,000 $ 770,312,000 $ 760,785,000
Qualifying assets           85.27% 83.78%  
Number of asset going through foreclosure | investment           0 0  
Total assets at fair value are in non-accrual status           0.30% 0.30%  
Excise tax expense           $ 0    
Registration expenses           $ 0 $ 0  
Temporary Equity [Line Items]                
Time dividends have remained unpaid           2 years    
Control investments                
Investments in and Advances to Affiliates, Activity [Line Items]                
Interest Income           $ 281,307,000 280,537,000  
Control investments | Previously Reported                
Investments in and Advances to Affiliates, Activity [Line Items]                
Interest Income             770,312,000 760,785,000
Non-control/non-affiliate investments | Previously Reported                
Investments in and Advances to Affiliates, Activity [Line Items]                
Interest Income             $ 770,312,000 $ 760,785,000
5.50% Preferred Stock                
Temporary Equity [Line Items]                
Dividend rate       5.50%   5.50% 5.50%  
Dividend rate   5.50% 5.50% 5.50%   5.50% 5.50%  
6.50% Preferred Stock                
Temporary Equity [Line Items]                
Dividend rate     6.50% 6.50%   6.50% 6.50%  
Dividend rate       6.50%   6.50% 6.50%  
5.35% Series A Preferred Stock                
Temporary Equity [Line Items]                
Dividend rate           5.35%    
7.50% Preferred Stock                
Temporary Equity [Line Items]                
Dividend rate   7.50%   7.50%        
Dividend rate 7.50%       7.50% 7.50%