Net loss per share (Tables)

3 Months Ended

Mar. 31, 2019

Earnings Per Share [Abstract]

Common Stock Equivalents Excluded from Calculation of Diluted 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):

	For the three months ended
	March 31,
	2019		2018
Outstanding stock options		5,384		4,446
Restricted stock units		1,128		920
ESPP shares		15		6
		6,527		5,372