NET (LOSS) INCOME PER SHARE

9 Months Ended

Sep. 30, 2020

Earnings Per Share [Abstract]

Net (Loss) Income Per Share

NET (LOSS) INCOME PER SHARE

Basic net (loss) income per share is computed using the weighted-average number of outstanding shares of common stock during the period. Diluted net (loss) income per share is computed using the weighted-average number of outstanding shares of common stock and, when dilutive, potential shares of common stock outstanding during the period. Potential common shares consist of the incremental shares of common stock issuable upon the exercise of stock options, shares issuable upon the vesting of RSUs and, to a lesser extent, purchase rights related to the ESPP.

The following table presents the calculation of basic and diluted net (loss) income per share for the periods presented (in thousands, except per share data):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
Basic net (loss) income per share:
Net (loss) income	$	(1,020)	$	10,061	$	(40,513)	$	23,729
Shares used in computation:
Weighted-average common shares outstanding	73,514		70,773		72,495		75,975
Basic net (loss) income per share attributable to common stockholders	$	(0.01)	$	0.14	$	(0.56)	$	0.31

	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
Diluted net (loss) income per share:
Net (loss) income	$	(1,020)	$	10,061	$	(40,513)	$	23,729
Shares used in computation:
Weighted-average common shares outstanding	73,514		70,773		72,495		75,975
Stock options	—		2,345		—		2,429
Restricted stock units	—		478		—		870
Employee stock purchase program	—		116		—		41
Number of shares used in diluted calculation	73,514		73,712		72,495		79,315
Diluted net (loss) income per share attributable to common stockholders	$	(0.01)	$	0.14	$	(0.56)	$	0.30

The following stock-based instruments were excluded from the calculation of diluted net (loss) income per share because their effect would have been anti-dilutive for the periods presented (in thousands):

	Three Months Ended September 30,		Nine Months Ended September 30,
	2020	2019	2020	2019
Stock options	5,889	2,718	5,889	2,629
Restricted stock units	7,248	2,718	7,248	2,530
ESPP	228	—	228	—