Net Loss Per Share

12 Months Ended

Dec. 31, 2016

Earnings Per Share [Abstract]

Net Loss Per Share

NET LOSS PER SHARE

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	$	(68,512	)	$	(50,785	)	$	(45,719	)
Weighted average shares—basic	72,824,070			64,882,417			64,708,163
Net loss per share—basic	$	(0.94	)	$	(0.78	)	$	(0.71	)
Weighted average shares—diluted	72,824,070			64,882,417			64,708,163
Net loss per share—diluted	$	(0.94	)	$	(0.78	)	$	(0.71	)

The below outstanding securities were excluded from the above calculation of net loss per share because their impact would have been anti-dilutive due to net loss per share, for the years ended, as summarized below:

	Year Ended December 31,
	2016	2015	2014
2018 Convertible Notes	10,454,799	11,401,284	11,401,284
Common stock options	1,294,594	1,441,086	2,173,916
Restricted stock awards	2,147,157	2,173,615	824,217
Common stock warrants	—	9,357	120,702
Preferred stock	—	40,000	40,000
Total	13,896,550	15,065,342	14,560,119