Net Loss Per Share (Tables)

9 Months Ended

Sep. 30, 2018

A reconciliation of the numerators and denominators used in computing net loss from continuing operations per share is as follows (in thousands, except per share amounts):


	Three Months Ended September 30,						Nine Months Ended September 30,
	2018		2017		2018		2017
Numerator:
Net loss from continuing operations	$	(42,264)	$	(42,660)	$	(101,283)	$	(86,239)

Denominator:
Shares used in per share calculation	39,242		25,431		36,485		25,024

Net loss from continuing operations per share, basic and diluted	$	(1.08)	$	(1.68)	$	(2.78)	$	(3.45)

Schedule of Antidilutive Securities Excluded from Computation of Diluted Net Loss per Share

The following table presents the potential shares of common stock outstanding that were excluded from the computation of diluted net loss from continuing operations per share for the periods presented because including them would have been anti-dilutive (in thousands):


	Three Months Ended September 30,			Nine Months Ended September 30,
	2018	2017	2018	2017
Shares subject to outstanding common stock options	3,957	4,121	3,752	3,879
Shares subject to outstanding restricted stock units	303	271	287	228
Shares subject to outstanding warrants to purchase common stock	28	1,251	35	1,522
Total	4,288	5,643	4,074	5,629