Balance Sheet Components - Property, Plant and Equipment, Net (Details) - USD ($) $ in Thousands	Oct. 03, 2021	Jan. 03, 2021
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 116,246	$ 137,543
Less: accumulated depreciation and impairment	(86,495)	(90,777)
Property, plant and equipment, net	29,751	46,766
Manufacturing equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	13,352	17,134
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	29,256	29,385
Solar power systems
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	8,601	30,110
Computer equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	53,854	49,935
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	7,855	7,899
Work-in-progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 3,328	$ 3,080