Property and Equipment - Schedule of Property and Equipment (Details) - USD ($) $ in Thousands	Dec. 28, 2019	Dec. 29, 2018
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 165,220	$ 176,250
Accumulated depreciation and amortization	(125,990)	(141,367)
Property and equipment, net	39,230	34,883
United States
Property, Plant and Equipment [Line Items]
Property and equipment, net	32,313	27,353
China
Property, Plant and Equipment [Line Items]
Property and equipment, net	1,683	2,360
Philippines
Property, Plant and Equipment [Line Items]
Property and equipment, net	2,683	3,319
Taiwan
Property, Plant and Equipment [Line Items]
Property and equipment, net	1,885	949
Japan
Property, Plant and Equipment [Line Items]
Property and equipment, net	283	324
Other
Property, Plant and Equipment [Line Items]
Property and equipment, net	383	578
Foreign countries
Property, Plant and Equipment [Line Items]
Property and equipment, net	6,917	7,530
Production equipment and software
Property, Plant and Equipment [Line Items]
Property and equipment, gross	150,591	160,979
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross	12,517	12,648
Office furniture and equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 2,112	$ 2,623