Net Earnings (Loss) Per Share (Tables)

6 Months Ended

Jun. 30, 2022

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				Six Months Ended
	June 30,				June 30,
	2022		2021		2022		2021
Net earnings available to common shareholders	$	122.2	$	111.6	$	213.8	$	173.6
Weighted-average common shares outstanding (in millions)
Weighted-average common shares outstanding - basic		52.7		54.5		53.2		54.8
Effect of dilutive securities - stock options		0.1		0.2		—		0.1
Effect of other share-based awards		0.6		0.7		0.6		0.6
Weighted-average common shares outstanding - diluted		53.4		55.4		53.8		55.5
Net earnings per share - basic	$	2.32	$	2.05	$	4.02	$	3.17
Net earnings per share - diluted	$	2.29	$	2.02	$	3.97	$	3.13