Schedule of Geographic Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 01, 2021	Oct. 02, 2020	Oct. 01, 2021	Oct. 02, 2020
Segment Reporting Information [Line Items]
Revenue	$ 177,726	$ 142,929	$ 507,833	$ 443,125
United States
Segment Reporting Information [Line Items]
Revenue	72,972	57,635	191,699	171,364
Germany
Segment Reporting Information [Line Items]
Revenue	25,313	18,885	71,448	64,266
Rest of Europe
Segment Reporting Information [Line Items]
Revenue	34,163	30,483	105,338	94,281
China
Segment Reporting Information [Line Items]
Revenue	22,230	17,409	68,286	50,285
Rest of Asia-Pacific
Segment Reporting Information [Line Items]
Revenue	21,256	16,414	64,765	55,956
Other Countries
Segment Reporting Information [Line Items]
Revenue	$ 1,792	$ 2,103	$ 6,297	$ 6,973