Basic earnings per share is computed by dividing net earnings attributable to the Company by the weighted average number of common shares outstanding. Diluted earnings per share is computed by dividing net earnings including the impact of dilutive adjustments by the weighted average number of common shares outstanding plus potentially dilutive shares, as if they had been issued at the earlier of the date of issuance or the beginning of the period presented. Potentially dilutive common shares result primarily from the Company’s outstanding stock options, restricted stock awards, restricted stock units (“RSUs”), and performance stock units (“PSUs”).


	Three Months Ended March 31,
	2026					2025
	Earnings		Shares	Per Share Amount		Earnings		Shares	Per Share Amount
Basic and diluted earnings (loss) per share:
Net earnings (loss)	$	(23.6)	93.6	$	(0.25)	$	(562.9)	90.1	$	(6.25)

Diluted earnings per share represent the potential dilution that could occur if securities or other contracts to issue common stock were exercised or converted into common stock. These potential shares include dilutive stock options and unissued restricted stock awards. Potential common shares are also considered antidilutive in the event of a net loss from operations. There were no dilutive common shares for any period presented as the inclusion would be antidilutive.

The following table summarizes the potential common shares not included in the computation of diluted earnings per share because their impact would have been antidilutive:


	Three Months Ended March 31,
	2026	2025
Employee stock options and awards	0.6	2.5
Antidilutive employee stock options and awards excluded based on reporting a net loss for the period	4.5	1.1