Equity and Earnings (Loss) Per Share

12 Months Ended

Dec. 31, 2019

Earnings Per Share [Abstract]

Equity and Earnings (Loss) Per Share

Equity Earnings Per Share

Earnings Per Share

Basic earnings per share has been computed based upon the weighted average number of common shares outstanding. Diluted earnings per share has been computed based upon the weighted average number of common shares outstanding plus the effect of all potentially dilutive common stock equivalents, except when the effect would be anti-dilutive.

The following table sets forth the computation of basic and diluted earnings per share (in millions, except per share data).

	Year Ended December 31,
	2019		2018		2017
Basic and diluted earnings per share:
Numerator:
Net income, basic and diluted	$	47.5	$	69.1	$	160.3
Denominator:
Basic weighted average common shares	28.7		28.4		28.3
Stock options, RSUs and PSUs	0.4		0.5		0.3
Weighted average shares used to calculate diluted earnings (loss) per share	29.1		28.9		28.6
Earnings per share:
Basic	$	1.66	$	2.43	$	5.66
Diluted	$	1.63	$	2.39	$	5.60
Antidilutive stock options, RSUs and PSUs	0.3		0.2		0.4