CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 26, 2020	Sep. 30, 2019	Sep. 26, 2020	Sep. 30, 2019
Income Statement [Abstract]
Revenue	$ 126,492	$ 62,935	$ 401,368	$ 185,338
Cost of revenue	57,604	31,424	198,264	89,897
Gross profit	68,888	31,511	203,104	95,441
Operating expenses:
Research and development	19,678	10,455	62,772	31,654
Sales and marketing	11,924	5,090	36,864	15,614
General and administrative	14,358	10,289	50,421	28,696
Amortization	13,646	387	41,081	1,161
Total operating expenses	59,606	26,221	191,138	77,125
Operating income	9,282	5,290	11,966	18,316
Interest income, net	544	1,001	2,440	2,667
Other (expense) income, net	(899)	617	(2,065)	841
Income before provision for income taxes	8,927	6,908	12,341	21,824
Provision for income taxes	836	348	1,230	2,162
Net income	$ 8,091	$ 6,560	$ 11,111	$ 19,662
Earnings per share:
Basic	$ 0.17	$ 0.26	$ 0.23	$ 0.79
Diluted	$ 0.16	$ 0.26	$ 0.22	$ 0.78
Weighted average shares outstanding:
Basic	48,900	25,079	49,231	25,012
Diluted	49,131	25,305	49,551	25,254