CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 27, 2025	Jun. 28, 2024	Jun. 27, 2025	Jun. 28, 2024
Income Statement [Abstract]
Revenue	$ 241,049	$ 235,864	$ 474,415	$ 466,780
Cost of revenue	134,303	132,175	263,315	262,675
Gross profit	106,746	103,689	211,100	204,105
Operating expenses:
Research and development and engineering	25,289	23,731	48,527	46,977
Selling, general and administrative	47,103	44,793	92,699	88,323
Amortization of purchased intangible assets	6,871	6,907	12,425	12,657
Restructuring, acquisition, and related costs	12,572	2,543	10,117	4,826
Total operating expenses	91,835	77,974	163,768	152,783
Operating income	14,911	25,715	47,332	51,322
Interest income (expense), net	(5,815)	(8,266)	(11,459)	(16,520)
Foreign exchange transaction gains (losses), net	(2,744)	(264)	(3,112)	(585)
Other income (expense), net	(563)	(55)	(554)	(171)
Income before income taxes	5,789	17,130	32,207	34,046
Income tax provision	1,292	3,375	6,502	5,615
Net income	$ 4,497	$ 13,755	$ 25,705	$ 28,431
Earnings per common share (Note 5):
Basic	$ 0.12	$ 0.38	$ 0.71	$ 0.79
Diluted	$ 0.12	$ 0.38	$ 0.71	$ 0.79
Weighted average common shares outstanding—basic	36,022	35,946	36,023	35,930
Weighted average common shares outstanding—diluted	36,076	36,092	36,103	36,110