EARNINGS PER SHARE

3 Months Ended

Mar. 31, 2018

Basic and diluted net income per share are computed by dividing net income by the weighted-average number of common shares outstanding. Diluted net income per share reflects the dilutive effect of stock-based compensation.



	Three Months Ended March 31,
	2018		2017
Computation of Income per Share	(In millions, except per share data)
Net income	$	20.9	$	13.4
Basic shares	167.2		165.6
Basic net income per share	$	0.13	$	0.08
Diluted shares:
Basic shares	167.2		165.6
Stock-based compensation	2.0		2.3
Diluted shares	169.2		167.9
Diluted net income per share	$	0.12	$	0.08

The computation of dilutive shares from stock-based compensation does not include 2.5 million and 2.4 million shares for the three months ended March 31, 2018 and 2017, respectively, as their effect would have been anti-dilutive.