Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 27, 2020	Jun. 29, 2019	Jun. 27, 2020	Jun. 29, 2019
Revenue	$ 100,589	$ 102,296	$ 197,905	$ 200,387
Cost of revenue	40,012	42,258	79,766	82,697
Gross margin	60,577	60,038	118,139	117,690
Operating expenses:
Research and development	22,458	19,377	44,151	39,042
Selling, general, and administrative	24,488	19,759	47,039	40,540
Amortization of acquired intangible assets	603	3,390	3,243	6,779
Restructuring charges	546	3,126	1,486	4,467
Total operating expenses	48,095	45,652	95,919	90,828
Income from operations	12,482	14,386	22,220	26,862
Interest expense	(1,045)	(3,538)	(2,122)	(8,525)
Other income (expense), net	37	(2,109)	(13)	(1,956)
Income before income taxes	11,474	8,739	20,085	16,381
Income tax expense	845	180	1,289	414
Net income	$ 10,629	$ 8,559	$ 18,796	$ 15,967
Net income per share:
Basic (in dollars per share)	$ 0.08	$ 0.06	$ 0.14	$ 0.12
Diluted (in dollars per share)	$ 0.08	$ 0.06	$ 0.14	$ 0.12
Shares used in per share calculations:
Basic (in shares)	134,857	132,206	134,555	131,599
Diluted (in shares)	139,202	137,221	138,751	136,133