v3.25.2
Derivative Instruments and Hedging Activities - Narrative (Details) - USD ($)
3 Months Ended 9 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Derivative [Line Items]        
Hedge percentage for foreign exchange transactional exposures, minimum     70.00%  
Hedge percentage for foreign exchange transactional exposures, maximum     90.00%  
Net Investment Hedging        
Derivative [Line Items]        
Pre-tax gains (losses) related to net investment hedges reclassified from other comprehensive income $ 0 $ 0 $ 0 $ 0