Earnings per Share (Tables)

6 Months Ended

Mar. 31, 2023

Earnings Per Share [Abstract]

Schedule of Weighted-Average Shares Outstanding

The following is the reconciliation between the number of weighted-average shares used in the basic and diluted earnings per share calculation:    

	Three Months Ended March 31,		Six Months Ended March 31,
	2023	2022	2023	2022
Basic weighted-average shares outstanding	51.4	53.6	51.5	54.0
Effect of dilutive securities:
Options, RSE and PRSE awards	0.6	0.7	0.5	0.6
Total dilutive securities	0.6	0.7	0.5	0.6
Diluted weighted-average shares outstanding	52.0	54.3	52.0	54.6