Net income (loss) per share

9 Months Ended

Sep. 30, 2021

The following table sets forth the computation of the basic and diluted net income (loss) per share for the periods indicated (in thousands, except per share amounts):


	Three Months Ended September 30,				Nine Months Ended September 30,
	2021		2020		2021		2020
Numerator:
Net income (loss)	$	(1,860)	$	(4,903)	$	(29,984)	$	7,129
Denominator:
Weighted average shares used to compute per share amount:
Basic	52,427		49,936		51,599		49,212
Diluted	52,427		49,936		51,599		51,411

Basic net income (loss) per share	$	(0.04)	$	(0.10)	$	(0.58)	$	0.14
Diluted net income (loss) per share	$	(0.04)	$	(0.10)	$	(0.58)	$	0.14

The Company has excluded the impact of the following outstanding employee stock options and restricted stock units as well as the shares expected to be issued under its employee stock purchase plan from the computation of diluted net income (loss) per share, as their effect would have been antidilutive (in thousands):


	Three Months Ended September 30,		Nine Months Ended September 30,
	2021	2020	2021	2020
Employee stock options	1,604	2,282	1,604	658
Restricted stock units	3,274	3,622	3,274	80
Market-based restricted stock units	134	612	134	612
Performance-based restricted stock units	240	90	240	90
Employee stock purchase plan	125	169	125	—
	5,377	6,775	5,377	1,440