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Earnings (Loss) Per Share (Tables)
 12 Months Ended
Dec. 31, 2018
Earnings Per Share [Abstract]  
Schedule of Basic and diluted earnings (loss) per share
The following table shows the basic and diluted earnings (loss) per share for 2018, 2017, and 2016:
 
For the year ended December 31, 2018
 
Net (Loss)
 
Shares
(in millions)
 
Per Share
Net loss
$
(66.2
)
 
 
 
 
Amount allocated to common stockholders
100
%
 
 

 
 
Basic and Diluted EPS:(1)
$
(66.2
)
 
87.6

 
$
(0.76
)

 
For the year ended December 31, 2017
 
Net Income
 
Shares
(in millions)
 
Per Share
Net income
$
48.6

 
 
 
 
Amount allocated to common stockholders
92
%
 
 

 
 
Basic EPS:
 

 
 

 
 
Net income allocated to common stockholders
$
44.7

 
87.3

 
$
0.51

Effect of dilutive securities:
 
 
 
 
 
Share-based compensation
 
 
0.7

 
 
Diluted EPS:
$
44.7

 
88.0

 
$
0.51

 
 
For the year ended December 31, 2016
 
Net (Loss)
 
Shares
(in millions)
 
Per Share
Net loss
$
(252.4
)
 
 
 
 
Amount allocated to common stockholders
100
%
 
 

 
 
Basic and Diluted EPS:(1)
$
(252.4
)
 
87.1

 
$
(2.90
)
Schedule of Antidilutive securities excluded from calculation of diluted EPS
Securities excluded from the calculation of diluted EPS (in millions):
2018(1)
 
2017
 
2016(1)
Share-based compensation
1.4

 
0.6

 
0.9


(1) 
In periods when we report a net loss, all share-based compensation awards are excluded from the calculation of diluted weighted average shares outstanding because of their anti-dilutive effect on earnings (loss) per share.