Net Loss Per Share (Tables)

9 Months Ended

Sep. 30, 2020

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


	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
Numerator:
Net loss	$	(60,089)	$	(290,478)	$	(139,213)	$	(363,443)

Denominator:
Shares used in per share calculation	55,548		43,029		53,039		42,577

Net loss per share, basic and diluted	$	(1.08)	$	(6.75)	$	(2.62)	$	(8.54)

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 calculation of diluted net loss 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,
	2020	2019	2020	2019
Shares subject to outstanding stock options	5,149	4,172	4,848	4,040
Shares subject to outstanding restricted stock units	422	402	487	371
Shares subject to outstanding warrants to purchase common stock	28	28	28	28
Shares issuable upon conversion of Convertible Senior Notes	269	—	90	—
Total	5,868	4,602	5,453	4,439