Net Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2025

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,
	2025		2024
Net earnings available to common shareholders	$	5.6	$	39.7
Weighted-average common shares outstanding (in millions)
Weighted-average common shares outstanding - basic		46.8		48.3
Effect of dilutive securities - share-based awards		0.5		0.6
Weighted-average common shares outstanding - diluted		47.3		48.9
Net earnings per share - basic	$	0.12	$	0.82
Net earnings per share - diluted	$	0.12	$	0.81