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Earnings Per Share (Tables)
 6 Months Ended
Jun. 30, 2015
Earnings Per Share [Abstract]  
Schedule of Earnings Per Share, Basic and Diluted
The calculation of basic and diluted earnings per share was as follows (in thousands, except per share data):
 
Three Months Ended June 30,
 
Six Months Ended June 30,
 
2015
 
2014
 
2015
 
2014
Numerator
 
 
 
 
 
 
 
Net loss
$
(9,220
)
 
$
(17,415
)
 
$
(17,046
)
 
$
(26,396
)
Denominator
 
 
 
 
 
 
 

Weighted-average common shares outstanding
53,403

 
34,320

 
49,852

 
34,246

Basic and diluted net loss per share
$
(0.17
)
 
$
(0.51
)
 
$
(0.34
)
 
$
(0.77
)