Segment and Geographical Information - Revenue from External Customers by Geographic Areas (Details) - Sales Revenue, Net - Geographic Concentration Risk	3 Months Ended		6 Months Ended
	Jun. 28, 2020	Jun. 30, 2019	Jun. 28, 2020	Jun. 30, 2019
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage	100.00%	100.00%	100.00%	100.00%
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage	62.00%	48.00%	63.00%	49.00%
France
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage	6.00%	11.00%	6.00%	11.00%
Rest of World
Revenues from External Customers and Long-Lived Assets [Line Items]
Concentration risk, percentage	32.00%	41.00%	31.00%	40.00%