v3.26.1
Significant Accounting Policies and Recent Accounting Updates (Details)
$ in Thousands
3 Months Ended 9 Months Ended 33 Months Ended
May 16, 2025
Jun. 30, 2026
USD ($)
security
shares
Jun. 30, 2025
USD ($)
shares
Jun. 30, 2026
USD ($)
segment
security
shares
Jun. 30, 2025
USD ($)
shares
Jun. 30, 2026
USD ($)
security
shares
Sep. 30, 2025
USD ($)
security
Aug. 01, 2025
USD ($)
Oct. 06, 2023
USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]                  
Amortization of deferred loan origination fees, net   $ 2,641 $ 5,122 $ 8,003 $ 22,662        
Interest income, operating, accretion of discounts   8,348 6,449 20,632 19,404        
Payment-in-kind interest income   16,351 13,516 48,002 38,577        
Payment-in-kind interest capitalized   16,439 12,518 49,157 40,439        
Investment company, premium prepayment fees   197 81 958 1,378        
Interest and fee income   163,844 188,717 511,112 587,500        
Dividend income, operating, paid in kind   4,232 8,020 17,424 23,091        
Non-cash dividend income   4,232 8,020 17,424 23,091        
Proceeds from dividends received   123 739 358 4,288        
Dividend income   1 204 788 1,497        
Return of capital   54 1 556 344        
Fair value non-accrual loan   $ 73,326   $ 73,326   $ 73,326 $ 27,321    
Number of preferred equity securities on non-accrual status | security   5   5   5 1    
Preferred equity securities aggregate amount in nonaccrual status   $ 85,316   $ 85,316   $ 85,316 $ 0    
Amortization of debt premium   (2,256) (3,602) (7,944) (13,880)        
Excise tax   0 0 0 475        
Income tax   0 0 0 0        
Stock repurchase program, authorized amount               $ 150,000  
Offering costs, partnership interests                 $ 288,043
Deferred debt issuance cost   24,247   24,247   $ 24,247 $ 26,005    
Amortization of debt issuance costs   $ 2,724 $ 2,413 $ 7,903 $ 7,537        
Number of operating segment | segment       1          
Number of reporting segment | segment       1          
Equity Distribution Agreement Plan 2023                  
New Accounting Pronouncements or Change in Accounting Principle [Line Items]                  
Number of shares issued under equity distribution agreements (in shares) | shares   0 0 0 2,408,940 2,408,940      
Consideration received           $ 38,043      
Maximum percentage of gross sales, commission received, percentage 1.50%