Net Loss Per Common Share (Tables)

12 Months Ended

Dec. 31, 2021

Earnings Per Share [Abstract]

Schedule of Net Loss Per Common Share, Basic and Diluted

The following table sets forth the computation of basic and diluted net loss per common share attributable to common stockholders (in thousands, except share and per share data):

	Year Ended December 31,
	2021			2020			2019
Numerator:
Net loss	$	(93,981	)	$	(106,780	)	$	(51,661	)
Denominator:
Weighted average shares used to compute basic and diluted net loss per share		133,917,571			17,858,976			7,390,456
Net loss per common share—basic and diluted	$	(0.70	)	$	(5.98	)	$	(6.99	)

Schedule of Antidilutive Securities Excluded from Computation of Net Loss Per Common Share

The following outstanding shares of potentially dilutive securities were excluded from the computation of diluted net loss per share attributable to common stockholders for the periods presented because including them would have been antidilutive:​​​​​​​

	Year Ended December 31,
	2021		2020		2019
Redeemable convertible preferred stock		—		88,434,754		4,384,348
Options to purchase common stock		22,675,729		25,732,503		1,599,645
Unvested RSA		17,466		146,675		34,865
Restricted stock units		10,106,993		—		—
Unvested early exercised common stock options		2,043,288		6,212,254		120,984
Vested and early exercised options subject to nonrecourse notes		—		2,151,100		—
Preferred stock warrants		15,999,900		4,443,862		37,285
Total		50,843,376		127,121,148		6,177,127