Net Loss Per Share (Tables)

9 Months Ended

Sep. 30, 2020

Earnings Per Share Basic And Diluted [Abstract]

Summary of Computation of Basic and Diluted Net Loss Per Share

The following table sets forth the computation of basic and diluted net loss per share attributable to common stockholders:

	Three Months Ended September 30,						Nine Months Ended September 30,
(in thousands, except share and per share amounts)	2019			2020			2019			2020
Net loss	$	(39,764	)	$	(37,850	)	$	(100,243	)	$	(142,137	)
Accretion of redeemable convertible preferred stock		(65,686	)		—			(109,529	)		—
Net loss attributable to common stockholders	$	(105,450	)	$	(37,850	)	$	(209,772	)	$	(142,137	)
Weighted-average number of shares outstanding used to compute net loss per share attributable to common stockholders, basic and diluted		8,615,682			121,123,472			8,591,554			53,731,475
Net loss per share attributable to common stockholders, basic and diluted	$	(12.24	)	$	(0.31	)	$	(24.42	)	$	(2.65	)

Summary of Calculation of Diluted Shares Outstanding

The following potentially dilutive shares were not included in the calculation of diluted shares outstanding for the periods presented as the effect would have been anti-dilutive:

	As of September 30,
	2019		2020
Redeemable convertible preferred stock		66,825,300		—
Warrants		161,136		—
Stock options		6,144,500		6,251,226
Restricted stock awards		3,836,442		3,249,382
Restricted stock units		408,000		2,205,952
Total		77,375,378		11,706,560