Condensed Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 02, 2021	Oct. 03, 2020	Oct. 02, 2021	Oct. 03, 2020
Condensed Consolidated Statements of Income
Revenues	$ 184,831	$ 132,731	$ 512,180	$ 365,099
Cost of revenues	75,322	57,247	214,619	154,189
Gross profit	109,509	75,484	297,561	210,910
Operating expenses:
Research and development	72,656	58,929	201,503	174,631
Selling, general and administrative	46,128	40,154	131,535	124,956
Operating expenses	118,784	99,083	333,038	299,587
Operating loss	(9,275)	(23,599)	(35,477)	(88,677)
Other income (expense):
Interest income and other, net	5,516	2,044	9,038	8,562
Interest expense	(6,595)	(8,604)	(24,405)	(25,923)
Loss from continuing operations before income taxes	(10,354)	(30,159)	(50,844)	(106,038)
Provision (benefit) for income taxes	9,386	(3,457)	12,543	(11,900)
Loss from continuing operations	(19,740)	(26,702)	(63,387)	(94,138)
Income from discontinued operations, net of income taxes	2,106,796	29,864	2,183,884	97,721
Net income	$ 2,087,056	$ 3,162	$ 2,120,497	$ 3,583
Basic earnings (loss) per share:
Continuing operations (in dollars per share)	$ (0.45)	$ (0.61)	$ (1.44)	$ (2.15)
Net income (in dollars per share)	48.11	0.07	48.08	0.08
Diluted earnings (loss) per share:
Continuing operations (in dollars per share)	(0.45)	(0.61)	(1.44)	(2.15)
Net income (in dollars per share)	$ 46.76	$ 0.07	$ 46.71	$ 0.08
Weighted-average common shares outstanding:
Basic (in shares)	43,385	43,815	44,103	43,737
Diluted (in shares)	44,634	44,328	45,394	44,254