Earnings Per Share (Tables)

3 Months Ended

Dec. 31, 2023

Earnings Per Share [Abstract]

Computation of basic and diluted earnings per share

	Three Months Ended December 31,
	2023		2022
Net earnings	$	43.9	$	44.2
Weighted-average shares for basic earnings per share	131.2		134.9
Effect of dilutive securities:
Stock options	0.2		—
Restricted stock units	0.3		0.2
Performance-based restricted stock units	1.3		—
Weighted-average shares for diluted earnings per share	133.0		135.1
Basic earnings per common share	$	0.33	$	0.33
Diluted earnings per common share	$	0.33	$	0.33

Antidilutive securities excluded from computation of earnings per share

	Three Months Ended December 31,
	2023	2022
Restricted stock units	—	0.2
Performance-based restricted stock units	—	0.5