Net Loss Per Share Attributable to Common Shareholders (Tables)

3 Months Ended

Mar. 31, 2021

Earnings Per Share [Abstract]

Schedule of Antidilutive Securities not Include in Computation of Net Loss per Share

The following common stock equivalents were excluded from the calculation of diluted net loss per share for the periods indicated because including them would have had an anti-dilutive effect (in thousands):

	Three Months Ended March 31,
	2021		2020
Outstanding options		8,572,663		8,495,315
Unvested restricted common shares		1,052,379		967,060
ESPP		10,594		—
Total		9,635,636		9,462,375