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EARNINGS PER SHARE
 3 Months Ended 12 Months Ended
Mar. 31, 2016
Dec. 31, 2015
Earnings Per Share [Abstract]    
EARNINGS PER SHARE
EARNINGS PER SHARE

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

 
 
Three Months Ended
March 31,
 
 
2016
 
2015
Computation of Income (Loss) per Share
 
(In millions, except per share data)
Net (loss) income
 
$
(37.9
)
 
$
13.1

Basic shares
 
165.1

 
77.4

Basic net (loss) income per share
 
$
(0.23
)
 
$
0.17

Diluted shares:
 
 
 
 
Basic shares
 
165.1

 
77.4

Stock-based compensation
 
—

 
1.1

Diluted shares
 
165.1

 
78.5

Diluted net (loss) income per share
 
$
(0.23
)
 
$
0.17


The computation of dilutive shares from stock-based compensation does not include 7.0 million shares and 1.4 million shares for the three months ended March 31, 2016 and 2015, respectively, as their effect would have been anti-dilutive.
EARNINGS PER SHARE

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

 
Years ended December 31,
 
2015
 
2014
 
2013
Computation of Income (loss) per Share
(In millions, except per share data)
Income (loss) from continuing operations, net
$
(1.4
)
 
$
105.0

 
$
178.6

Income from discontinued operations, net
—

 
0.7

 
—

Net (loss) income
$
(1.4
)
 
$
105.7

 
$
178.6

Basic shares
103.4

 
78.6

 
79.9

Basic (loss) income per share:
 
 
 
 
 
Income (loss) from continuing operations
$
(0.01
)
 
$
1.33

 
$
2.24

Income from discontinued operations, net
—

 
0.01

 
—

Net (loss) income
$
(0.01
)
 
$
1.34

 
$
2.24

Diluted shares:
 
 
 
 
 
Basic shares
103.4

 
78.6

 
79.9

Stock-based compensation
—

 
1.1

 
1.0

Diluted shares
103.4

 
79.7

 
80.9

Diluted (loss) income per share:
 
 
 
 
 
Income (loss) from continuing operations
$
(0.01
)
 
$
1.32

 
$
2.21

Income from discontinued operations, net
—

 
0.01

 
—

Net (loss) income
$
(0.01
)
 
$
1.33

 
$
2.21



The computation of dilutive shares from stock-based compensation does not include 5.2 million shares in 2015 and 0.6 million shares in both 2014 and 2013 as their effect would have been anti-dilutive.