EARNINGS PER SHARE

6 Months Ended

Jun. 30, 2013

Earnings Per Share [Abstract]

EARNINGS PER SHARE

EARNINGS PER SHARE

Basic and diluted net income per share are computed by dividing net income by the weighted average number of common shares outstanding.  Diluted net income per share reflects the dilutive effect of stock-based compensation.

	Three Months Ended June 30,				Six Months Ended June 30,
	2013		2012		2013		2012
Computation of Income per Share	($ and shares in millions, except per share data)
Net income	$	43.7	$	47.6	$	84.2	$	86.3
Basic shares	80.2		80.1		80.2		80.1
Basic net income per share	$	0.54	$	0.59	$	1.05	$	1.08
Diluted shares:
Basic shares	80.2		80.1		80.2		80.1
Stock-based compensation	1.0		0.6		1.0		0.7
Diluted shares	81.2		80.7		81.2		80.8
Diluted net income per share	$	0.54	$	0.59	$	1.04	$	1.07

The computation of dilutive shares from stock-based compensation does not include 0.6 million shares and 1.8 million shares for the three months ended June 30, 2013 and 2012, respectively, and 1.4 million shares and 0.8 million shares for the six months ended June 30, 2013 and 2012, respectively, as their effect would have been anti-dilutive.