Net Loss Per Share (Tables)

9 Months Ended

Sep. 30, 2018

Earnings Per Share [Abstract]

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 endedSeptember 30, 2018 and 2017.

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2018			2017			2018			2017
Net loss	$	(10,116	)	$	(14,273	)	$	(53,759	)	$	(51,879	)
Shares used in computing basic and diluted net loss per share	85,226			83,496			84,487			83,225
Basic and diluted net loss per share	$	(0.12	)	$	(0.17	)	$	(0.64	)	$	(0.62	)

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		Nine Months Ended
	September 30,		September 30,
	2018	2017	2018	2017
Common stock options	80	338	181	543
Restricted stock awards	120	117	121	119
Restricted stock units	148	98	344	205
Total	348	553	646	867

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

	Three Months Ended		Nine Months Ended
	September 30,		September 30,
	2018	2017	2018	2017
Conversion of the Notes	8,317	11,939	8,317	11,939
Deerfield Warrants	6,470	6,470	6,470	6,470
New Deerfield Warrants	8,750	—	8,750	—