Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2020

Earnings Per Share [Abstract]

Computation of basic and diluted net income per common share

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 March 31
	2020		2019
Numerator:
Net income	$	46.3	$	41.5
Denominator:
Weighted-average shares outstanding - basic	34.9		36.5
Effect of dilutive securities:
Equity compensation plans	0.5		0.6
Weighted-average shares outstanding - diluted	35.4		37.1
Basic earnings per share	$	1.33	$	1.14
Diluted earnings per share	$	1.31	$	1.12