Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Apr. 03, 2021	Mar. 28, 2020
Revenue	$ 115,716	$ 97,316
Cost of revenue	45,130	39,754
Gross margin	70,586	57,562
Operating expenses:
Research and development	24,066	21,693
Selling, general, and administrative	25,092	22,551
Amortization of acquired intangible assets	603	2,640
Restructuring charges	176	940
Total operating expenses	49,937	47,824
Income from operations	20,649	9,738
Interest expense	(718)	(1,077)
Other expense, net	(162)	(50)
Income before income taxes	19,769	8,611
Income tax expense	956	444
Net income	$ 18,813	$ 8,167
Net income per share:
Basic (in dollars per share)	$ 0.14	$ 0.06
Diluted (in dollars per share)	$ 0.13	$ 0.06
Shares used in per share calculations:
Basic (in shares)	136,401	134,253
Diluted (in shares)	141,674	138,044