Net Income per Share (Tables)

9 Months Ended

Sep. 30, 2018

Earnings Per Share [Abstract]

Computation Of Basic And Diluted Net Income Per Share

The following table sets forth the computation of basic and diluted net income per share (in thousands, except per share data):

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	Three months ended September 30,				Nine months Ended September 30,
	2018		2017		2018		2017
Numerator for basic net income per share:
Net income	$	2,124	$	9,063	$	24,067	$	45,398
Denominator for basic net income per share:
Weighted-average common shares outstanding	39,853		39,641		39,843		38,028
Basic net income per share	$	0.05	$	0.23	$	0.60	$	1.19
Numerator for diluted net income per share:
Net income	$	2,124	$	9,063	$	24,067	$	45,398
Denominator for diluted net income per share:
Weighted-average common shares outstanding	39,853		39,641		39,843		38,028
Dilutive stock options, restricted stock and performance restricted stock units and employee stock purchase plan shares	639		623		620		1,078
Diluted weighted-average common shares outstanding	40,492		40,264		40,463		39,106
Diluted net income per share	$	0.05	$	0.23	$	0.59	$	1.16