Net Loss Per Share Attributable to Common Stockholders (Tables)

9 Months Ended

Sep. 30, 2020

Earnings Per Share [Abstract]

Summary of Outstanding Anti-dilutive Shares Excluded from Calculation of Diluted Net Loss Per Share

The following outstanding potentially dilutive shares have been excluded from the calculation of diluted net loss per share, as their effect is anti-dilutive:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
Convertible Preferred Stock		48,958,829		33,645,447		48,958,829		33,645,447
Stock options to purchase common stock		7,001,747		3,011,891		7,001,747		3,011,891
Non-vested restricted stock		200,000		200,000		200,000		200,000