Consolidated Statements of Income Statement - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 28, 2020	Mar. 30, 2019
Revenue	$ 192,535	$ 237,661
Cost of product revenue	114,295	115,038
Amortization of acquired intangible assets	285	3,077
Total cost of revenue	114,580	118,115
Gross profit	77,955	119,546
Research and development	36,759	35,269
Selling and marketing	36,594	38,836
General and administrative	24,573	22,907
Amortization of acquired intangible assets	254	271
Total operating expenses	98,180	97,283
Operating (loss) income	(20,225)	22,263
Other (expense) income, net	(19)	1,280
(Loss) income before income taxes	(20,244)	23,543
Income tax (benefit) expense	(2,109)	1,023
Net (loss) income	$ (18,135)	$ 22,520
Basic	$ (0.64)	$ 0.81
Diluted	$ (0.64)	$ 0.78
Basic	28,297	27,863
Diluted	28,297	28,763