Net Loss Per Share (Tables)

12 Months Ended

Dec. 31, 2020

Summary of Calculation of Basic and Diluted Net Loss Per Share

The table presents the calculation of basic and diluted net loss per share as follows (in thousands, except per share data):

	Years Ended December 31,
	2020			2019			2018
Numerator:
Net loss attributable to common stockholders	$	(17,507	)	$	(59,937	)	$	(8,857	)
Denominator:
Weighted-average shares used in computing net loss per share, basic and diluted		123,978			115,218			104,618
Net loss per share, basic and diluted	$	(0.14	)	$	(0.52	)	$	(0.08	)

Schedule of Antidilutive Securities Excluded from Calculation of Diluted Net Loss Per Share

The potential common shares that were excluded from the calculation of diluted net loss per share because their effect would have been antidilutive for the periods presented are as follows (in thousands):

	Years Ended December 31,
	2020		2019		2018
Equity awards to purchase common stock		13,088		15,668		20,057
Unvested shares of common stock issued upon early exercise of stock options and business acquisition		1		31		70
Total		13,089		15,699		20,127