v3.25.0.1
Borrowings - 2024 Debt Securitization (Narrative) (Details)
$ in Thousands
3 Months Ended
Nov. 18, 2024
USD ($)
Dec. 31, 2024
USD ($)
portfolioCompany
Sep. 30, 2024
USD ($)
[2]
Debt Instrument [Line Items]      
Investments, at fair value   $ 8,685,231 [1] $ 8,235,411
2024 Debt Securitization      
Debt Instrument [Line Items]      
Debt instrument, face amount $ 2,200,500    
Debt instrument, basis spread on variable rate   4.50%  
Number of investment portfolio company | portfolioCompany   114  
Investments, at fair value   $ 2,147,119  
2024 Debt Securitization | Subordinated debt      
Debt Instrument [Line Items]      
Debt instrument, face amount 517,500    
2024 Debt Securitization | AAA/AAA Class A -1R 2024 Notes      
Debt Instrument [Line Items]      
Debt instrument, face amount $ 1,192,400    
Debt instrument, basis spread on variable rate 1.56%    
2024 Debt Securitization | AAA Class A-2RR 2024 Notes      
Debt Instrument [Line Items]      
Debt instrument, face amount $ 171,600    
Debt instrument, basis spread on variable rate 1.75%    
2024 Debt Securitization | AA Class B-R 2024 Notes      
Debt Instrument [Line Items]      
Debt instrument, face amount $ 165,000    
Debt instrument, basis spread on variable rate 1.70%    
2024 Debt Securitization | A Class C-R 2024 Notes      
Debt Instrument [Line Items]      
Debt instrument, face amount $ 154,000    
Debt instrument, basis spread on variable rate 2.10%    
[1] The fair values of investments were valued using significant unobservable inputs, unless noted otherwise. See “Note 6. Fair Value Measurements”.
[2] The fair values of investments were valued using significant unobservable inputs, unless noted otherwise. See “Note 6. Fair Value Measurements”.