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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
 6 Months Ended
Jul. 03, 2026
Jul. 04, 2025
Statement of Cash Flows [Abstract]    
Net income $ 422,517 $ 344,464
Adjustments to reconcile net income to net cash provided by operating activities:    
Depreciation and amortization 13,932 14,687
Stock-based compensation 61,613 62,001
Non-cash lease expense 11,921 12,166
Acquired in-process research and development technology 10,600 750
Other, net (3,295) (10,617)
Changes in operating assets and liabilities:    
Trade receivables, net (35,297) (26,837)
Inventory (3,433) 2,568
Prepaid expenses and other assets 99,156 (84,386)
Accrued collaboration liabilities (5,262) 641
Accounts payable and other liabilities (12,866) (55,007)
Net cash provided by operating activities 559,586 260,430
Cash flows from investing activities:    
Purchases of marketable securities (342,683) (288,186)
Proceeds from maturities and sales of marketable securities 394,393 612,021
Purchases of property, equipment and other, net (8,325) (5,790)
Acquired in-process research and development technology (3,025) (20,250)
Net cash provided by investing activities 40,360 297,795
Cash flows from financing activities:    
Payments for repurchases of common stock (753,326) (585,858)
Proceeds from issuance of common stock under the equity incentive plan and stock purchase plan 22,912 37,710
Taxes paid related to net share settlement of equity awards (70,572) (63,018)
Net cash used in financing activities (800,986) (611,166)
Net decrease in cash and cash equivalents (201,040) (52,941)
Cash and cash equivalents at beginning of period 482,488 217,374
Cash and cash equivalents at end of period $ 281,448 $ 164,433