v3.26.3
Transactions with Controlled Companies - Nationwide Loan Company LLC (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Jun. 20, 2025
Sep. 30, 2026
Sep. 30, 2025
Jun. 30, 2026
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]        
Interest Income   $ 132,608 $ 152,394  
Interest Receivable   $ 23,039   $ 17,350
Nationwide Loan Company LLC | Members of Nationwide Management        
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]        
Ownership interest   5.78%    
Converted to equity $ 29,091      
Nationwide Loan Company LLC | Nationwide Loan Company LLC        
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]        
Ownership interest   94.22%   94.22%
Reportable Legal Entities | Subsidiaries | Nationwide Loan Company LLC        
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]        
Interest Income   $ 282 255  
Interest Income Capitalized as PIK   282 254  
Interest Receivable   3   $ 3
Other Receivables   55   $ 55
Reportable Legal Entities | Subsidiaries | Nationwide Loan Company LLC | Prospect Administration        
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]        
Managerial Assistance   100 100  
Reimbursement of Legal, Tax, etc   $ 0 $ 3  
Reportable Legal Entities | Subsidiaries | Nationwide Loan Company LLC        
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]        
Ownership interest   100.00%   100.00%