CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Oct. 01, 2021	Sep. 30, 2022	Oct. 01, 2021
Income Statement [Abstract]
Revenue	$ 222,958	$ 177,726	$ 642,530	$ 507,833
Cost of revenue	124,550	101,428	358,601	290,389
Gross profit	98,408	76,298	283,929	217,444
Operating expenses:
Research and development and engineering	21,349	17,468	63,866	53,104
Selling, general and administrative	40,301	31,296	120,191	94,189
Amortization of purchased intangible assets	6,472	4,139	20,987	11,300
Restructuring, acquisition, and related costs	1,625	8,120	2,650	16,485
Total operating expenses	69,747	61,023	207,694	175,078
Operating income	28,661	15,275	76,235	42,366
Interest income (expense), net	(4,062)	(1,710)	(9,928)	(4,496)
Foreign exchange transaction gains (losses), net	2,086	34	2,307	(299)
Other income (expense), net	87	(71)	(390)	(238)
Income before income taxes	26,772	13,528	68,224	37,333
Income tax provision (benefit)	4,282	(75)	9,435	756
Consolidated net income	$ 22,490	$ 13,603	$ 58,789	$ 36,577
Earnings per common share (Note 5):
Basic	$ 0.63	$ 0.38	$ 1.65	$ 1.03
Diluted	$ 0.63	$ 0.38	$ 1.64	$ 1.02
Weighted average common shares outstanding—basic	35,729	35,447	35,625	35,366
Weighted average common shares outstanding—diluted	35,928	35,764	35,881	35,771