Condensed Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands		3 Months Ended		6 Months Ended
		Jul. 01, 2023	Jun. 25, 2022	Jul. 01, 2023	Jun. 25, 2022
Net sales		$ 168,921	$ 217,226	$ 348,292	$ 414,983
Cost and expenses:
Cost of sales (1)	[1]	88,576	116,273	181,729	222,874
Research and development		22,466	23,160	44,976	46,266
Selling, general and administrative		32,798	32,531	66,987	63,777
Amortization of purchased intangible assets		9,006	8,341	17,760	16,876
Restructuring charges		416	7	1,304	583
Costs and Expenses		153,262	180,312	312,756	350,376
Income from operations		15,659	36,914	35,536	64,607
Other (expense) income:
Interest expense		(727)	(919)	(1,855)	(1,900)
Interest income		2,732	308	5,450	419
Foreign transaction gain (loss)		(645)	1,491	(1,085)	2,635
Loss on extinguishment of debt		0	(128)	(369)	(232)
Income before taxes		17,019	37,666	37,677	65,529
Income tax provision		6,435	8,898	11,408	15,192
Net income		$ 10,584	$ 28,768	$ 26,269	$ 50,337
Basic (in dollars per share)		$ 0.22	$ 0.59	$ 0.55	$ 1.04
Diluted (in dollars per share)		$ 0.22	$ 0.59	$ 0.55	$ 1.02
Weighted average shares used in computing income per share:
Basic (in shares)		47,618	48,475	47,481	48,626
Diluted (in shares)		48,028	48,928	48,099	49,248

[1] Excludes amortization of $7,102 and $6,544 for the three months ended July 1, 2023 and June 25, 2022, respectively, and $13,993 and $13,240 for the six months ended July 1, 2023 and June 25, 2022, respectively.