Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Apr. 03, 2022	Apr. 04, 2021
Income Statement [Abstract]
Revenue	$ 282,407	$ 239,027
Cost of revenue	78,790	54,045
Gross margin	203,617	184,982
Research, development, and engineering expenses	36,054	34,105
Selling, general, and administrative expenses	80,835	72,424
Operating income	86,728	78,453
Foreign currency gain (loss)	(444)	(1,008)
Investment income	1,468	1,554
Other income (expense)	(48)	(168)
Income before income tax expense	87,704	78,831
Income tax expense	20,371	8,983
Net Income	$ 67,333	$ 69,848
Net income per weighted-average common and common-equivalent share:
Basic (usd per share)	$ 0.39	$ 0.40
Diluted (usd per share)	$ 0.38	$ 0.39
Weighted-average common and common-equivalent shares outstanding:
Basic (shares)	174,146	176,288
Diluted (shares)	176,668	179,971
Cash dividends per common share (usd per share)	$ 0.065	$ 0.060