Net Loss per Share (Tables)

6 Months Ended

Jun. 30, 2021

Earnings Per Share [Abstract]

Potentially Dilutive Securities that were Not Included in Diluted Net Loss per Share Calculations

The following securities were not included in the diluted net loss per share calculations because their effect was anti-dilutive:

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Options to purchase common stock		3,739,404		3,574,452		3,739,404		3,574,452
Restricted stock units		3,352,273		2,866,882		3,352,273		2,866,882
Total		7,091,677		6,441,334		7,091,677		6,441,334