Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 03, 2021	Jun. 27, 2020	Jul. 03, 2021	Jun. 27, 2020
Revenue	$ 125,905	$ 100,589	$ 241,621	$ 197,905
Cost of revenue	48,721	40,012	93,851	79,766
Gross margin	77,184	60,577	147,770	118,139
Operating expenses:
Research and development	27,454	22,458	51,520	44,151
Selling, general, and administrative	25,607	24,488	50,699	47,039
Amortization of acquired intangible assets	603	603	1,206	3,243
Restructuring charges	204	546	380	1,486
Total operating expenses	53,868	48,095	103,805	95,919
Income from operations	23,316	12,482	43,965	22,220
Interest expense	(702)	(1,045)	(1,420)	(2,122)
Other (expense) income, net	(135)	37	(297)	(13)
Income before income taxes	22,479	11,474	42,248	20,085
Income tax expense	641	845	1,597	1,289
Net income	$ 21,838	$ 10,629	$ 40,651	$ 18,796
Net income per share:
Basic (in dollars per share)	$ 0.16	$ 0.08	$ 0.30	$ 0.14
Diluted (in dollars per share)	$ 0.15	$ 0.08	$ 0.29	$ 0.14
Shares used in per share calculations:
Basic (in shares)	136,388	134,857	136,394	134,555
Diluted (in shares)	141,491	139,202	141,637	138,751