Net Earnings (Loss) Per Share

9 Months Ended

Sep. 30, 2022

(8) Net Earnings Per Share

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


	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2022		2021		2022		2021
Net earnings available to common shareholders	$	111.3	$	97.7	$	325.1	$	271.3
Weighted-average common shares outstanding (in millions)
Weighted-average common shares outstanding - basic		51.7		54.3		52.6		54.7
Effect of dilutive securities - stock options		—		0.2		0.1		0.1
Effect of other share-based awards		0.6		0.7		0.6		0.6
Weighted-average common shares outstanding - diluted		52.3		55.2		53.3		55.4
Net earnings per share - basic	$	2.15	$	1.80	$	6.18	$	4.96
Net earnings per share - diluted	$	2.13	$	1.77	$	6.10	$	4.90

There were 0.7 million and 0.1 million share-based awards excluded from the calculation of net earnings per share - diluted for the three months ended September 30, 2022 and 2021, respectively, because their impact was anti-dilutive. There were 0.5 million and 0.2 million share-based awards excluded from the calculation of net earnings per share - diluted for the nine months ended September 30, 2022 and 2021, respectively, because their impact was anti-dilutive.