Net Income (Loss) Per Share (Tables)

9 Months Ended

Sep. 30, 2016

Earnings Per Share [Abstract]

Basic and Diluted Net Income Per Share

The calculation of basic and diluted net income per share is as follows:

	Three months ended September 30,				Nine months ended September 30,
	2016		2015		2016		2015
	(In thousands, except per share data)
Net income	$	1,983	$	8,036	$	446	$	23,105
Weighted-average shares outstanding — basic	36,332		35,806		36,020		35,983
Effect of dilutive securities from stock award plans	747		807		675		887
Weighted-average shares outstanding — diluted	$	37,079	$	36,613	$	36,695	$	36,870
Net income per share — basic	$	0.05	$	0.22	$	0.01	$	0.64
Net income per share — diluted	$	0.05	$	0.22	$	0.01	$	0.63
Anti-dilutive weighted-average shares related to stock award plans	326		478		1,255		380