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Weighted Average Shares Outstanding and Net Incomer (Loss) Per Share
 3 Months Ended
Mar. 31, 2016
Earnings Per Share [Abstract]  
Earnings Per Share [Text Block]
Weighted Average Shares Outstanding and Net Loss Per Share
The following table presents a reconciliation of the weighted average shares outstanding used in calculating basic and diluted net loss per share as well as the calculation of basic and diluted net loss per share:
 
 
Three Months Ended March 31,
(in thousands, except per share amounts)
 
2016
 
2015
Numerator (basic and diluted):
 
 
 
 

Net loss allocated to common shareholders for basic calculation
 
$
(11,188
)
 
$
(8,560
)
Denominator:
 
 
 
 

Weighted average common shares outstanding, basic 
 
39,433

 
39,215

Dilutive effect of common stock options and restricted stock units1
 
—

 
—

Weighted average common shares outstanding, diluted
 
39,433

 
39,215

Net loss per share, basic
 
$
(0.28
)
 
$
(0.22
)
Net loss per share, diluted
 
$
(0.28
)
 
$
(0.22
)

1Due to the net loss for the three months ended March 31, 2016 and 2015, restricted stock units and common stock options representing approximately 544,000 and 598,000, respectively, have been excluded from the number of shares used in calculating diluted net loss per share, as their inclusion would be antidilutive.