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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($)
$ in Thousands
 9 Months Ended
Sep. 27, 2025
Sep. 28, 2024
Cash flows from operating activities:    
Net income $ 126,230 $ 152,853
Adjustments to reconcile net income to net cash and cash equivalents provided by operating activities:    
Amortization of intangibles 25,336 39,338
Accretion (Amortization) of Discounts and Premiums, Investments 4,292 5,353
Depreciation 15,174 10,818
Share-based compensation 20,378 21,826
Provision for inventory valuation 20,385 5,925
Deferred income taxes (14,509) (15,951)
Other, net 4,624 (97)
Changes in operating assets and liabilities, net of effects of business acquired 39,993 (19,682)
Net cash and cash equivalents provided by operating activities 233,319 189,677
Cash flows from investing activities:    
Purchases of marketable securities (421,154) (538,132)
Proceeds from maturities and sales of marketable securities 684,526 342,958
Purchases of property, plant and equipment (23,384) (27,277)
PaymentsToAquireNonMarketableSecurities 8,000 0
Payments to Acquire Businesses, Net of Cash Acquired, Total 57 0
Net cash and cash equivalents used in investing activities 231,931 (222,451)
Cash flows from financing activities:    
Purchases and retirement of common stock (75,015) 0
Tax payments related to shares withheld for share-based compensation plans (12,589) (18,441)
Payment for Contingent Consideration Liability, Financing Activities 0 737
Issuance of shares through share-based compensation plans 9,740 9,178
Net cash and cash equivalents used in financing activities (77,864) (10,000)
Effect of exchange rate changes on cash and cash equivalents 2,754 (1,996)
Net increase (decrease) in cash and cash equivalents 390,140 (44,770)
Cash and cash equivalents at beginning of period 212,945 233,508
Cash and cash equivalents at end of period 603,085 188,738
Supplemental disclosure of cash flow information:    
Income taxes paid (net of refunds) $ 35,468 $ 30,232