CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 28, 2024	Jun. 30, 2023	Jun. 28, 2024	Jun. 30, 2023
Income Statement [Abstract]
Revenue	$ 235,864	$ 229,464	$ 466,780	$ 448,590
Cost of revenue	132,175	125,341	262,675	246,839
Gross profit	103,689	104,123	204,105	201,751
Operating expenses:
Research and development and engineering	23,731	23,380	46,977	46,208
Selling, general and administrative	44,793	42,187	88,323	83,110
Amortization of purchased intangible assets	6,907	5,124	12,657	10,213
Restructuring, acquisition, and related costs	2,543	1,234	4,826	3,710
Total operating expenses	77,974	71,925	152,783	143,241
Operating income	25,715	32,198	51,322	58,510
Interest income (expense), net	(8,266)	(6,810)	(16,520)	(13,142)
Foreign exchange transaction gains (losses), net	(264)	74	(585)	(3)
Other income (expense), net	(55)	(191)	(171)	(357)
Income before income taxes	17,130	25,271	34,046	45,008
Income tax provision	3,375	4,392	5,615	5,864
Net income	$ 13,755	$ 20,879	$ 28,431	$ 39,144
Earnings per common share (Note 5):
Basic	$ 0.38	$ 0.58	$ 0.79	$ 1.09
Diluted	$ 0.38	$ 0.58	$ 0.79	$ 1.09
Weighted average common shares outstanding—basic	35,946	35,851	35,930	35,830
Weighted average common shares outstanding—diluted	36,092	36,032	36,110	36,015