Net Earnings (Loss) Per Share (Tables)

3 Months Ended

Mar. 31, 2023

Earnings Per Share [Abstract]

Calculations of Net Earnings (Loss) Per Share - Basic and Diluted

The calculations of net earnings per share - basic and net earnings per share - diluted were as follows:

	Three Months Ended
	March 31,
	2023		2022
Net earnings available to common shareholders	$	77.8	$	91.6
Weighted-average common shares outstanding (in millions)
Weighted-average common shares outstanding - basic		50.9		53.6
Effect of dilutive securities - stock options		0.1		0.1
Effect of other share-based awards		0.6		0.7
Weighted-average common shares outstanding - diluted		51.6		54.4
Net earnings per share - basic	$	1.53	$	1.71
Net earnings per share - diluted	$	1.51	$	1.68