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Earnings Per Share (Notes)

3 Months Ended

Mar. 31, 2019

Earnings Per Share [Abstract]

Earnings per share

9. Earnings per Share 

The following is a reconciliation of the shares used to compute basic and diluted earnings per share (in millions):

		Three Months Ended
		March 31,
		2019			2018
Weighted average number of common shares outstanding used to compute basic earnings per share		52.6			52.2
Dilutive effect of stock-based awards		0.6			0.6
Number of shares used to compute diluted earnings per share		53.2			52.8

There were 0.3 million share equivalents outstanding during the three months ended March 31, 2019 that were anti-dilutive when applying the treasury stock method and thus were excluded from the number of shares used to compute diluted earnings per share. The number of anti-dilutive share equivalents outstanding during the three months ended March 31, 2018 was insignificant.

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- Definition

The entire disclosure for earnings per share.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-URI http://asc.fasb.org/topic&trid=2144383

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