Revenues (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 03, 2021	Apr. 04, 2020
Revenues
Revenues	$ 255,505	$ 214,877
Revenue from performance obligations that were satisfied in previous reporting periods	12,000	11,100
Distributors
Revenues
Revenues	202,266	163,463
Direct customers
Revenues
Revenues	53,239	51,414
Internet of Things
Revenues
Revenues	158,245	118,041
Infrastructure and automotive
Revenues
Revenues	$ 97,260	$ 96,836