v3.26.1
Leasing Arrangements - Additional Information (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Lessee Lease Description [Line Items]        
Right-of-use assets exchanged for new operating lease obligations $ 1 $ 3 $ 5 $ 5