Net loss per share

3 Months Ended

Mar. 31, 2018

Earnings Per Share [Abstract]

Net loss per share

13. 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,
	2018		2017
Outstanding stock options		4,446		4,203
Restricted stock units		920		426
ESPP shares		6		11
		5,372		4,640