Property and Equipment (Tables)

12 Months Ended

Dec. 31, 2016

Property, Plant and Equipment [Abstract]

Property and Equipment

(In thousands)	December 31, 2016			January 2, 2016
Buildings	$	3,554		$	3,554
Computer and test equipment	162,388			148,995
Office furniture and equipment	3,460			3,880
Leasehold and building improvements	14,865			14,366
	184,267			170,795
Accumulated depreciation and amortization	(134,786		)	(118,943		)
	$	49,481		$	51,852