CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 29, 2023	Sep. 30, 2022	Sep. 29, 2023	Sep. 30, 2022
Income Statement [Abstract]
Revenue	$ 221,503	$ 222,958	$ 670,093	$ 642,530
Cost of revenue	119,912	124,550	366,751	358,601
Gross profit	101,591	98,408	303,342	283,929
Operating expenses:
Research and development and engineering	22,022	21,349	68,230	63,866
Selling, general and administrative	39,648	40,301	122,758	120,191
Amortization of purchased intangible assets	5,131	6,472	15,344	20,987
Restructuring, acquisition, and related costs	4,481	1,625	8,191	2,650
Total operating expenses	71,282	69,747	214,523	207,694
Operating income	30,309	28,661	88,819	76,235
Interest income (expense), net	(6,756)	(4,062)	(19,898)	(9,928)
Foreign exchange transaction gains (losses), net	(370)	2,086	(373)	2,307
Other income (expense), net	(189)	87	(546)	(390)
Income before income taxes	22,994	26,772	68,002	68,224
Income tax provision	1,771	4,282	7,635	9,435
Consolidated net income	$ 21,223	$ 22,490	$ 60,367	$ 58,789
Earnings per common share:
Basic	$ 0.59	$ 0.63	$ 1.68	$ 1.65
Diluted	$ 0.59	$ 0.63	$ 1.68	$ 1.64
Weighted average common shares outstanding—basic	35,856	35,729	35,839	35,625
Weighted average common shares outstanding—diluted	36,041	35,928	36,024	35,881