Net Income (Loss) Per Share (Tables)

6 Months Ended

Jun. 30, 2017

Earnings Per Share [Abstract]

Basic and Diluted Net Income (loss) Per Share

The following is a reconciliation of the numerators and denominators used in computing basic and diluted net income (loss) per share (in thousands, except per share data):

	Three Months Ended				Six Months Ended
	June 30,		June 24,		June 30,		June 24,
	2017		2016		2017		2016
Numerator:
Net income (loss)	$	20,179	$	723	$	34,520	$	(2,516	)
Denominator:
Shares used in computation — basic:
Weighted average common shares    outstanding		33,433		32,565		33,247		32,437
Shares used in computation — diluted:
Shares used in computing basic net income    (loss) per share		33,433		32,565		33,247		32,437
Dilutive effect of common shares    outstanding subject to repurchase		622		184		749		—
Dilutive effect of options outstanding		9		43		21		—
Weighted average shares used in computing    diluted net income (loss) per share		34,064		32,792		34,017		32,437
Net income (loss) per share — basic	$	0.60	$	0.02	$	1.04	$	(0.08	)
Net income (loss) per share — diluted	$	0.59	$	0.02	$	1.01	$	(0.08	)