v3.26.1
Derivatives - Schedule of Impact of Derivative Transactions (Details) - Foreign exchange - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Derivative Instruments and Hedging Activities Disclosures [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 $ 1,515 $ (12,446) $ 7,373 $ (12,744)