Condensed Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended
	Apr. 02, 2022	Apr. 03, 2021
Condensed Consolidated Statements of Income
Revenues	$ 233,814	$ 157,857
Cost of revenues	78,042	66,103
Gross profit	155,772	91,754
Operating expenses:
Research and development	77,542	64,015
Selling, general and administrative	44,647	42,454
Operating expenses	122,189	106,469
Operating income (loss)	33,583	(14,715)
Other income (expense):
Interest income and other, net	1,499	1,149
Interest expense	(1,680)	(11,324)
Income (loss) from continuing operations before income taxes	33,402	(24,890)
Provision for income taxes	11,689	1,992
Equity-method earnings	1,194	1,726
Income (loss) from continuing operations	22,907	(25,156)
Income from discontinued operations, net of income taxes		38,665
Net income	$ 22,907	$ 13,509
Basic earnings (loss) per share:
Continuing operations (in dollars per share)	$ 0.60	$ (0.57)
Net income (in dollars per share)	0.60	0.31
Diluted earnings (loss) per share:
Continuing operations (in dollars per share)	0.58	(0.57)
Net income (in dollars per share)	$ 0.58	$ 0.29
Weighted-average common shares outstanding:
Basic (in shares)	38,003,000	44,160,000
Diluted (in shares)	39,523,000	45,832,000