Changes in Stockholders' Equity and Accumulated Other Comprehensive Loss (Tables)

6 Months Ended

Jul. 02, 2016

Stockholders' Equity Note [Abstract]

Schedule of Changes in Stockholders' Equity and Accumulated other Comprehensive Loss

(In thousands)	Common stock		Additional Paid-in  capital		Accumulated deficit			Accumulated other comprehensive loss			Total
Balances, January 2, 2016	$	1,187	$	660,089	$	(352,846	)	$	(2,910	)	$	305,520
Net loss for the six months ended July 2, 2016	—		—		(33,521		)	—			(33,521		)
Unrealized loss related to marketable securities, net of tax	—		—		—			(27		)	(27		)
Reclassification adjustment for losses related to marketable securities included in other income (expense), net of tax	—		—		—			38			38
Translation adjustments, net of tax	—		—		—			(441		)	(441		)
Common stock issued in connection with the exercise of stock options, ESPP and vested RSUs, net of tax	13		1,886		—			—			1,899
Stock-based compensation expense related to stock options, ESPP and RSUs	—		7,798		—			—			7,798
Defined benefit pension, net of actuarial losses	—		—		—			141			141
Balances, July 2, 2016	$	1,200	$	669,773	$	(386,367	)	$	(3,199	)	$	281,407