v3.26.1
Derivatives - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Sep. 30, 2025
Open Forward Foreign Currency Contract [Line Items]          
Net gain (loss) related to the fair value hedge $ 46 $ 155 $ (125) $ (4,541)  
Macquarie Bank Limited          
Open Forward Foreign Currency Contract [Line Items]          
Collateral (Received) / Pledged $ 0   $ 0   $ 4,890