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Net Loss Per Share (Tables)
 12 Months Ended
Dec. 31, 2016
Earnings Per Share [Abstract]  
Schedule of Weighted Average Number of Shares Outstanding
Net loss per share was computed by dividing net loss by the weighted average number of common shares outstanding for the years ended December 31, 2016, 2015, and 2014:

Year Ended December 31,

2016

2015

2014
Net loss
$
(154,677
)

(50,424
)

(32,418
)
Shares used in computing basic and diluted net loss per share
80,976


67,671


$
65,225

Basic and diluted net loss per share
$
(1.91
)

$
(0.75
)

(0.50
)
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share
The potential dilutive effect of these securities is shown in the chart below:

Year Ended December 31,

2016

2015

2014
Conversion of the Senior Notes
14,767

14,767

3,588
The following outstanding Company securities, using the treasury stock method, were excluded from the above calculations of net loss per share because their impact would have been anti-dilutive due to the net losses during the years ended December 31, 2016, 2015, and 2014:

 Year Ended December 31,

2016

2015

2014
Common stock options
1,248

1,651

1,822
Restricted stock awards
129

133

321
Restricted stock units
370

230

182
  Total
1,747

2,014

2,325