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Earnings (Loss) Per Share (Tables)
 12 Months Ended
Dec. 31, 2017
Earnings Per Share [Abstract]  
Components of basic and diluted earnings per common share
Basic and diluted earnings (loss) per common share are as follows (in thousands, except per share data):
 
Year ended December 31,
 
2017
 
2016
 
2015
(Loss) income from continuing operations
$
(13,053
)
 
$
1,907

 
$
7,158

Loss from discontinued operations, net of tax
(14,342
)
 
(51,037
)
 
(20,620
)
Net loss - Basic and Diluted
$
(27,395
)
 
$
(49,130
)
 
$
(13,462
)
 
 
 
 
 
 
Weighted average common shares outstanding - Basic
57,580

 
56,087

 
54,459

Assumed conversions:
 
 
 
 
 
Incremental common shares from stock options
—

 
197

 
527

Incremental common shares from restricted stock units
—

 
66

 
6

Weighted average common shares outstanding - Diluted
57,580

 
56,350

 
54,992

 
 
 
 
 
 
Basic earnings (loss) per common share:
 
 
 
 
 
Continuing operations
$
(0.23
)
 
$
0.03

 
$
0.13

Discontinued operations, net of tax
(0.25
)
 
(0.91
)
 
(0.38
)
Basic earnings (loss) per common share
$
(0.48
)
 
$
(0.88
)
 
$
(0.25
)
Diluted earnings (loss) per common share:
 
 
 
 
 
Continuing operations
$
(0.23
)
 
$
0.03

 
$
0.13

Discontinued operations, net of tax
(0.25
)
 
(0.91
)
 
(0.37
)
Diluted earnings (loss) per common share
$
(0.48
)
 
$
(0.88
)
 
$
(0.24
)