Net Loss Per Share (Tables)

3 Months Ended

Mar. 31, 2018

Schedule of Calculation of Net Loss Per Share

Net loss per share was calculated by dividing net loss by the weighted average number of common shares outstanding for the three months ended March 31, 2018 and 2017.



	Three Months Ended
	March 31,
	2018			2017
Net loss	$	(19,767	)	$	(21,314	)
Shares used in computing basic and diluted net loss per share	83,706			82,928
Basic and diluted net loss per share	$	(0.24	)	$	(0.26	)

Schedule of Antidilutive Securities Excluded from Computation of Loss Per Share

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:



	Three Months Ended
	March 31,
	2018	2017
Common stock options	270	696
Restricted stock awards	118	120
Restricted stock units	307	252
Total	695	1,068

The potential dilutive effect of these securities is shown in the chart below:



	Three Months Ended
	March 31,
	2018	2017
Conversion of the Notes	11,939	14,767
Deerfield Warrants	6,470	—