v3.26.1
Derivatives - Schedule of Realized and Unrealized Gain (Loss) on Forward Currency Contract (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Open Forward Foreign Currency Contract [Line Items]        
Change in unrealized appreciation (depreciation) on forward currency contracts recognized in income $ 62 $ (807) $ 361 $ (966)
Foreign exchange        
Open Forward Foreign Currency Contract [Line Items]        
Realized gain (loss) on forward currency contracts recognized in income 0 0 0 0
Change in unrealized appreciation (depreciation) on forward currency contracts recognized in income $ 62 $ (807) $ 361 $ (966)