Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2015

Earnings Per Share [Abstract]

Computation of basic and diluted net income per common share

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

	Three Months Ended June 30				Six Months Ended June 30
	2015		2014		2015		2014
Numerator:
Net income	$	45.4	$	53.1	$	107.6	$	95.2
Denominator:
Weighted average shares outstanding - basic	43.5		45.5		43.8		45.7
Effect of dilutive securities:
Equity compensation plans	0.7		0.8		0.7		0.8
Weighted average shares outstanding - diluted	44.2		46.3		44.5		46.5
Basic earnings per share	$	1.04	$	1.17	$	2.46	$	2.08
Diluted earnings per share	$	1.03	$	1.15	$	2.42	$	2.05