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Pay vs Performance Disclosure - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Pay vs Performance Disclosure        
Net earnings available to common stockholders $ 44.3 $ 39.1 $ 119.4 $ 48.6