Earnings Per Share (Tables)

12 Months Ended

Dec. 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 for the years ended December 31 (in millions, except per share amounts):

	2020		2019		2018
Numerator:
Net income from continuing operations	$	150.2	$	180.8	$	190.5
Net income from discontinued operations	1.1		30.4		20.8
Net income	$	151.3	$	211.2	$	211.3
Denominator:
Weighted-average shares outstanding - basic	35.0		35.7		37.6
Effect of dilutive securities:
Equity compensation plans	0.4		0.7		0.7
Weighted-average shares outstanding - diluted	35.4		36.4		38.3
Basic earnings per share from continuing operations	$	4.30	$	5.07	$	5.07
Basic earnings per share from discontinued operations	0.03		0.85		0.55
Basic earnings per share from consolidated operations	$	4.33	$	5.92	$	5.62
Diluted earnings per share from continuing operations	$	4.24	$	4.97	$	4.98
Diluted earnings per share from discontinued operations	0.03		0.84		0.54
Diluted earnings per share from consolidated operations	$	4.27	$	5.81	$	5.52