Amortization Expense of Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 03, 2020	Mar. 29, 2019
Goodwill And Intangible Assets Disclosure [Abstract]
Amortization expense – cost of revenue	$ 2,734	$ 2,311
Amortization expense – operating expenses	3,445	3,998
Total amortization expense	$ 6,179	$ 6,309