v3.26.1
Organization Restructuring (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Jun. 30, 2026
Jun. 30, 2026
Jun. 30, 2025
Restructuring Reserve [Roll Forward]      
Beginning balance   $ 1.1  
Amounts accrued   18.9 $ 5.1
Ending balance $ 2.0 2.0  
Portfolio Optimization Costs $ 3.1 $ 3.1 $ 4.1