Condensed Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 01, 2023	Jul. 02, 2022	Jul. 01, 2023	Jul. 02, 2022
Condensed Consolidated Statements of Income
Revenues	$ 244,866	$ 263,150	$ 491,653	$ 496,964
Cost of revenues	101,091	99,247	194,018	177,289
Gross profit	143,775	163,903	297,635	319,675
Operating expenses:
Research and development	85,902	83,511	175,298	161,053
Selling, general and administrative	40,706	49,013	85,597	93,660
Operating expenses	126,608	132,524	260,895	254,713
Operating income	17,167	31,379	36,740	64,962
Other income (expense):
Interest income and other, net	7,780	3,445	12,616	4,944
Interest expense	(1,596)	(1,667)	(3,252)	(3,347)
Income before income taxes	23,351	33,157	46,104	66,559
Provision for income taxes	12,338	10,994	20,091	22,683
Equity-method earnings (loss)	(57)	(28)	(1,090)	1,166
Net income	$ 10,956	$ 22,135	$ 24,923	$ 45,042
Earnings per share:
Basic (in dollars per share)	$ 0.35	$ 0.62	$ 0.78	$ 1.22
Diluted (in dollars per share)	$ 0.33	$ 0.60	$ 0.75	$ 1.18
Weighted-average common shares outstanding:
Basic	31,614	35,722	31,786	36,862
Diluted	32,926	36,604	33,339	38,063