Segment Reporting and Geographic Information - Schedule of Revenue from External Customers by Products and Services (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 28, 2020	Mar. 31, 2019
Segment Reporting Information [Line Items]
Total revenue	$ 139,928	$ 60,892
Sales [Member] | Product [Member]
Segment Reporting Information [Line Items]
Concentration risk, percentage	100.00%	100.00%
Systems and Software [Member]
Segment Reporting Information [Line Items]
Total revenue	$ 114,330	$ 49,809
Systems and Software [Member] | Sales [Member] | Product [Member]
Segment Reporting Information [Line Items]
Concentration risk, percentage	82.00%	82.00%
Parts Revenue [Member]
Segment Reporting Information [Line Items]
Total revenue	$ 13,575	$ 8,077
Parts Revenue [Member] | Sales [Member] | Product [Member]
Segment Reporting Information [Line Items]
Concentration risk, percentage	10.00%	13.00%
Service Revenue [Member]
Segment Reporting Information [Line Items]
Total revenue	$ 12,023	$ 3,006
Service Revenue [Member] | Sales [Member] | Product [Member]
Segment Reporting Information [Line Items]
Concentration risk, percentage	8.00%	5.00%