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Earnings Per Share (Tables)
 9 Months Ended
Sep. 30, 2017
Earnings Per Share [Abstract]  
Schedule of earnings per share, basic and diluted
The following table presents the reconciliation of the numerator and denominator for calculating net income (loss) per share:
 
Third Quarter
 
First Nine Months
(In thousands, except per share data)
2017
 
2016
 
2017
 
2016
Numerator
 
 
 
 
 
 
 
Basic - net income (loss)
$
2,653

 
$
(13,451
)
 
$
3,302

 
$
(40,655
)
Assumed conversions of 2017 Convertible Notes
—

 
—

 
—

 
—

Diluted - adjusted net income (loss)
$
2,653

 
$
(13,451
)
 
$
3,302

 
$
(40,655
)
 
 
 
 
 
 
 
 
Denominator
 
 
 
 
 
 
 
Basic - weighted average common shares outstanding
85,426

 
83,998

 
84,749

 
83,573

Dilutive effect of stock options and restricted stock awards
2,251

 
—

 
2,545

 
—

Dilutive effect of 2017 Convertible Notes
—

 
—

 
—

 
—

Dilutive effect of 2021 Convertible Notes
—

 
—

 
—

 
—

Diluted - weighted average common shares outstanding
87,677

 
83,998

 
87,294

 
83,573

 
 
 
 
 
 
 
 
Net income (loss) per common share
 
 
 
 
 
 
 
Basic
$
0.03

 
$
(0.16
)
 
$
0.04

 
$
(0.49
)
Diluted
$
0.03

 
$
(0.16
)
 
$
0.04

 
$
(0.49
)
Schedule of diluted net income (loss) per share
We excluded the following weighted-average potential shares from the calculations of diluted net income (loss) per share during the applicable periods because their inclusion would have been anti-dilutive:
 
Third Quarter
 
First Nine Months
(In thousands)
2017
 
2016
 
2017
 
2016
Stock options and restricted stock-based awards
1,693

 
8,279

 
2,149

 
7,258

2017 Convertible Notes
7,569

 
14,666

 
7,569

 
14,869

2021 Convertible Notes
—

 
—

 
—

 
—