CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Oct. 01, 2022
Cash flows from operating activities:
Net income	$ 90,850	$ 157,120
Adjustments to reconcile net income to net cash and cash equivalents provided by operating activities:
Amortization of intangibles	41,473	41,461
Depreciation	9,018	6,980
Share-based compensation	19,913	18,929
Research and Development Asset Acquired Other than Through Business Combination, Writeoff	0	4,406
Provision for inventory valuation	6,111	7,175
Deferred income taxes	(21,193)	(24,560)
Other, net	3,005	2,742
Changes in operating assets and liabilities, net of effects of business acquired	(38,790)	(127,045)
Net cash and cash equivalents provided by operating activities	110,387	87,208
Cash flows from investing activities:
Purchases of marketable securities	(360,273)	(289,504)
Proceeds from maturities and sales of marketable securities	314,124	274,636
Purchase of business, net of cash acquired	0	(4,572)
Purchases of property, plant and equipment	(20,110)	(9,786)
Net cash and cash equivalents used in investing activities	(66,259)	(29,226)
Cash flows from financing activities:
Purchases and retirement of common stock	(3,197)	(11,540)
Tax payments related to shares withheld for share-based compensation plans	(10,367)	(8,569)
Payment of contingent consideration for acquired business	(803)	(2,287)
Issuance of shares through share-based compensation plans	5,285	4,499
Net cash and cash equivalents used in financing activities	(9,082)	(17,897)
Effect of exchange rate changes on cash and cash equivalents	(4,333)	(9,304)
Net increase in cash and cash equivalents	30,713	30,781
Cash and cash equivalents at beginning of period	175,872	169,602
Cash and cash equivalents at end of period	206,585	200,383
Supplemental disclosure of cash flow information:
Income taxes paid (net of refunds)	$ 28,935	$ 47,107