Condensed Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands		3 Months Ended
		Apr. 01, 2023	Mar. 26, 2022
Net sales		$ 179,371	$ 197,757
Cost and expenses:
Cost of sales (1)	[1]	93,153	106,601
Research and development		22,510	23,106
Selling, general and administrative		34,189	31,246
Amortization of purchased intangible assets		8,754	8,535
Restructuring charges		888	576
Costs and Expenses		159,494	170,064
Income from operations		19,877	27,693
Other (expense) income:
Interest expense		(1,128)	(981)
Interest income		2,718	111
Foreign transaction gain (loss)		(440)	1,144
Loss on extinguishment of debt		(369)	(104)
Income before taxes		20,658	27,863
Income tax provision		4,973	6,294
Net income		$ 15,685	$ 21,569
Basic (in dollars per share)		$ 0.33	$ 0.44
Diluted (in dollars per share)		$ 0.33	$ 0.44
Weighted average shares used in computing income per share:
Basic (in shares)		47,343	48,778
Diluted (in shares)		48,171	49,569

[1] Excludes amortization of $6,891 and $6,696 for the three months ended April 1, 2023 and March 26, 2022, respectively.