Net Income Per Share (Tables)

6 Months Ended

Jun. 30, 2017

Net Income Per Share

Schedule of computation of basic and diluted net income per share

	Three Months Ended June 30,				Six Months Ended June 30,
(In thousands except per share data)	2017		2016		2017		2016
Numerator:
Net income, basic	$	35,146	$	14,597	$	51,991	$	19,032
Add: interest expense on 2023 Notes	1,414		1,457		2,821		—
Net income, diluted	$	36,560	$	16,054	$	54,812	$	19,032
Denominator:
Weighted-average shares used to compute basic net income per share	107,614		111,359		107,468		112,005
Dilutive effect of 2023 Notes	12,189		12,602		12,189		—
Dilutive effect of options and awards granted under equity incentive plan and employee stock purchase plan	660		355		660		526
Weighted-average shares used to compute diluted net income per share	120,463		124,316		120,317		112,531
Net income per share
Basic	$	0.33	$	0.13	$	0.48	$	0.17
Diluted	$	0.30	$	0.13	$	0.46	$	0.17

Schedule of anti-dilutive securities

	Three Months Ended June 30,		Six Months Ended June 30,
(In thousands)	2017	2016	2017	2016
Outstanding options and awards granted under equity incentive plan and employee stock purchase plan	2,019	4,276	2,541	4,383
Shares issuable upon conversion of 2023 Notes	—	—	—	12,753
	2,019	4,276	2,541	17,136