v3.26.1
Fair Value Measurements - Schedule of Fair Value Measurements of Investments (Details) - USD ($)
$ in Thousands
Mar. 31, 2026
Sep. 30, 2025
Assets, at fair value:    
Fair Value $ 397,083 [1] $ 390,128 [2]
Money market funds 652 12,875
Forward currency contracts 25  
Total assets, at fair value: 397,760 403,003
Liabilities, at fair value:    
Forward currency contracts   (285)
Total liabilities, at fair value:   (285)
Debt Investments    
Assets, at fair value:    
Fair Value 390,005 383,033
Equity Investments    
Assets, at fair value:    
Fair Value 7,078 7,095
Level 1    
Assets, at fair value:    
Money market funds 652 12,875
Forward currency contracts 0  
Total assets, at fair value: 652 12,875
Liabilities, at fair value:    
Forward currency contracts   0
Total liabilities, at fair value:   0
Level 1 | Debt Investments    
Assets, at fair value:    
Fair Value 0 0
Level 1 | Equity Investments    
Assets, at fair value:    
Fair Value 0 0
Level 2    
Assets, at fair value:    
Money market funds 0 0
Forward currency contracts 25  
Total assets, at fair value: 25 0
Liabilities, at fair value:    
Forward currency contracts   (285)
Total liabilities, at fair value:   (285)
Level 2 | Debt Investments    
Assets, at fair value:    
Fair Value 0 0
Level 2 | Equity Investments    
Assets, at fair value:    
Fair Value 0 0
Level 3    
Assets, at fair value:    
Money market funds 0 0
Forward currency contracts 0  
Total assets, at fair value: 397,083 390,128
Liabilities, at fair value:    
Forward currency contracts   0
Total liabilities, at fair value:   0
Level 3 | Debt Investments    
Assets, at fair value:    
Fair Value 390,005 383,033
Level 3 | Equity Investments    
Assets, at fair value:    
Fair Value $ 7,078 $ 7,095
[1] The fair values of investments were valued using significant unobservable inputs, unless otherwise noted. See Note 7. The fair value of loan investments may include the impact of the unfunded commitment being valued below par.
[2] The fair values of investments were valued using significant unobservable inputs, unless otherwise noted. See Note 7. The fair value of loan investments may include the impact of the unfunded commitment being valued below par.