Net Loss per Share

12 Months Ended

Dec. 31, 2019

Earnings Per Share [Abstract]

Net Loss per Share

17. Net Loss per Share

The following table sets forth the computation of the Company’s basic and diluted net loss per share for the periods presented (in thousands, except share and per share data):

	Year Ended December 31,
	2019			2018			2017
Net loss attributable to common stockholders, basic and diluted	$	(120,199	)	$	(79,124	)	$	(72,176	)
Weighted-average common shares used in    computing net loss per share, basic and diluted		102,001,954			81,123,140			58,457,868
Net loss per share, basic and diluted	$	(1.18	)	$	(0.98	)	$	(1.23	)

Since the Company was in a loss position for all periods presented, diluted net loss per common share is the same as basic net loss per common share, because the inclusion of any potential common shares outstanding would have an anti-dilutive effect. The following weighted-average common stock equivalents were excluded from the calculation of diluted net loss per share for the periods presented, because including them would have had an anti-dilutive effect:

	Year Ended December 31,
	2019		2018		2017
Convertible preferred stock (if converted)		—		369,934		—
Options to purchase common stock		10,352,702		10,486,468		7,914,067
Common stock warrant		4,052,705		4,464,965		3,345,674
Restricted stock units		2,126,017		903,163		108,107