Earnings Per Share

9 Months Ended

Sep. 30, 2019

Earnings Per Share [Abstract]

Earnings Per Share

Earnings per Share

We compute basic earnings per share by dividing net income available to our common shareholders by the weighted-average number of shares of our common stock outstanding. We weight shares issued or reacquired for the portion of the period that they were outstanding. Our diluted earnings per share reflect the impacts of our potentially dilutive securities, which include our equity compensation awards.

The following table shows the computation of our basic and diluted net income per common share (in millions, except per share amounts):

	Three Months Ended September 30				Nine Months Ended September 30
	2019		2018		2019		2018
Numerator:
Net income	$	45.1	$	47.0	$	154.6	$	162.1
Denominator:
Weighted-average shares outstanding - basic	35.4		37.7		35.9		37.8
Effect of dilutive securities:
Equity compensation plans	0.6		0.8		0.7		0.7
Weighted-average shares outstanding - diluted	36.0		38.5		36.6		38.5
Basic earnings per share	$	1.28	$	1.25	$	4.30	$	4.29
Diluted earnings per share	$	1.25	$	1.22	$	4.22	$	4.21