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BASIC AND DILUTED EARNINGS PER COMMON SHARE
 6 Months Ended
Jun. 30, 2018
Earnings Per Share, Basic and Diluted [Abstract]  
BASIC AND DILUTED EARNINGS PER COMMON SHARE
BASIC AND DILUTED EARNINGS PER COMMON SHARE
Shares used in basic (loss) earnings per share are computed using the weighted-average number of common shares outstanding during each period. Shares used in diluted (loss) earnings per share include the dilutive effect of unvested restricted stock under the Company’s Stock Plan using the treasury stock method. For the three and six months ended June 30, 2018, diluted loss per share equals basic loss per share as the assumed vesting of restricted stock would have an anti-dilutive effect. At June 30, 2018 and 2017, there were no outstanding stock options under the Company's Stock Plan.

Following are the components of basic and diluted (loss) earnings per common share for the periods presented:
 
Three months ended June 30,
 
Six months ended June 30,
 
2018
 
2017
 
2018
 
2017
Numerator:
 
 
 
 
 
 
 
Loss from continuing operations, net of taxes
$
(121.4
)
 
$
(37.1
)
 
$
(213.1
)
 
$
(74.8
)
(Loss) income from discontinued operations, net of taxes
(1.1
)
 
0.6

 
0.3

 
0.9

Net loss
$
(122.5
)
 
$
(36.5
)
 
$
(212.8
)
 
$
(73.9
)
Denominator:
 
 
 
 
 
 
 
Weighted-average common shares outstanding – Basic
52,823,326

 
53,096,935

 
52,748,913

 
52,569,473

Effect of dilutive restricted stock
—

 
—

 
—

 
—

Weighted-average common shares outstanding – Diluted
52,823,326

 
53,096,935

 
52,748,913

 
52,569,473

Basic (loss) earnings per common share:
 
 
 
 
 
 
 
Continuing operations
$
(2.30
)
 
$
(0.70
)
 
$
(4.04
)
 
$
(1.42
)
Discontinued operations
(0.02
)
 
—

 
0.01

 
0.01

Net loss per common share
$
(2.32
)
 
$
(0.70
)
 
$
(4.03
)
 
$
(1.41
)
Diluted (loss) earnings per common share:
$
—

 
 
 
 
 
 
Continuing operations
$
(2.30
)
 
$
(0.70
)
 
$
(4.04
)
 
$
(1.42
)
Discontinued operations
(0.02
)
 
—

 
0.01

 
0.01

Net loss per common share
$
(2.32
)
 
$
(0.70
)
 
$
(4.03
)
 
$
(1.41
)
 
 
 
 
 
 
 
 
Unvested restricted stock awards under the Stock Plan(a)
10,733

 
—

 
53,981

 
43,120


(a) 
These are outstanding common stock equivalents that were not included in the computation of diluted earnings per common share because their inclusion would have had an anti-dilutive effect.