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(Loss) Earnings per Common Share (Tables)
 6 Months Ended
Jun. 30, 2012
Earnings Per Share [Abstract]  
Schedule of Earnings Per Share, Basic and Diluted
The following table sets forth the computation of the weighted average basic and diluted (loss) earnings per share:
 
 
Three Months Ended
 
Six Months Ended
 
 
June 30,
 
June 30,
(In millions, except for per share amounts)
 
2012
 
2011
 
2012
 
2011
Numerator:
 
 
 
 
 
 
 
 
Net loss
 
$
(12.0
)
 
$
(12.5
)
 
$
(24.2
)
 
$
(19.7
)
Denominator:
 
 
 
 
 
 
 
 
Weighted average number of common shares outstanding during the period
 
37.7

 
37.8

 
37.6

 
37.9

Dilutive effect of stock-based compensation plans
 
—

 
—

 
—

 
—

Weighted average number of diluted shares outstanding during the period
 
37.7

 
37.8

 
37.6

 
37.9

 
 
 
 
 
 
 
 
 
(Loss) earnings per common share — basic
 
(0.32
)
 
(0.33
)
 
(0.64
)
 
(0.52
)
(Loss) earnings per common share — diluted
 
(0.32
)
 
(0.33
)
 
(0.64
)
 
(0.52
)
Anti-dilutive options excluded from calculation
 
6.4

 
5.3

 
6.2

 
4.4