Net Loss Per Share (Tables)

12 Months Ended

Dec. 31, 2019

Schedule of Earnings Per Share, Basic and Diluted

A reconciliation of the denominator used in the calculation of basic and diluted loss per share is as follows (in thousands, except share and per share data):


	Year ended
	December 31, 2019						December 31, 2018						December 31, 2017
	Class A		Class B		Class A		Class B		Class A		Class B
Numerator
Net loss	$	(38,661)	$	(9,473)	$	(38,733)	$	(11,338)	$	(33,016)	$	(11,410)

Denominator
Weighted-average common shares outstanding - basic and diluted	37,190,224		9,112,432		33,758,623		9,881,785		30,929,899		10,688,939
Basic and diluted net loss per share	$	(1.04)	$	(1.04)	$	(1.15)	$	(1.15)	$	(1.07)	$	(1.07)

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

The anti-dilutive securities excluded from the weighted-average shares used to calculate the diluted net loss per common share were as follows:


	As of December 31,
	2019	2018	2017
Shares subject to outstanding common stock options	4,353,167	6,400,175	8,145,777
Shares subject to unvested restricted stock awards	—	—	163,332
Shares subject to unvested restricted stock units	3,039,020	2,359,261	574,072
Shares issuable pursuant to the ESPP	76,466	105,583	85,509