Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2012

Computation of Basic and Diluted Net Income Per Common Share

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

	Three Months  Ended September 30				Nine Months  Ended September 30
	2012		2011		2012		2011
Numerator:
Net income	$	53.8	$	32.9	$	107.6	$	79.2
Denominator:
Weighted average shares outstanding - basic		46.9		46.5		46.8		46.4
Effect of dilutive securities:
Equity compensation plans		0.6		0.6		0.6		0.6
Convertible preferred stock		0.1		0.1		0.1		0.1
Weighted average shares outstanding - diluted		47.6		47.2		47.5		47.1
Basic earnings per share	$	1.15	$	0.71	$	2.30	$	1.71
Diluted earnings per share	$	1.13	$	0.70	$	2.26	$	1.68