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Pay vs Performance Disclosure - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Pay vs Performance Disclosure        
Net Income (Loss) $ 6.1 $ 32.3 $ (7.4) $ 28.3