Balance Sheet Components (Schedule of Property and Equipment, Net) (Details) - USD ($) $ in Thousands	Sep. 27, 2020	Dec. 31, 2019
Total property and equipment, gross	$ 127,139	$ 116,008
Accumulated depreciation and amortization	(111,826)	(98,325)
Total	15,313	17,683
Computer equipment
Total property and equipment, gross	10,433	9,883
Furniture, fixtures and leasehold improvements
Total property and equipment, gross	18,266	18,623
Software
Total property and equipment, gross	29,227	27,865
Machinery and equipment
Total property and equipment, gross	$ 69,213	$ 59,637

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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