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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
 6 Months Ended
Jul. 04, 2025
Jun. 28, 2024
Statement of Cash Flows [Abstract]    
Net income $ 344,464 $ 263,433
Adjustments to reconcile net income to net cash provided by operating activities:    
Depreciation and amortization 14,687 13,707
Stock-based compensation 62,001 44,467
Non-cash lease expense 12,166 13,943
Acquired in-process research and development technology 750 20,250
Other, net (10,617) 7,924
Changes in operating assets and liabilities:    
Trade receivables, net (26,837) (159,217)
Inventory 2,568 3,075
Prepaid expenses and other assets (84,386) 33,660
Accrued collaboration liabilities 641 (2,350)
Accounts payable and other liabilities (55,007) (50,522)
Net cash provided by operating activities 260,430 188,370
Cash flows from investing activities:    
Purchases of marketable securities (288,186) (247,154)
Proceeds from maturities and sales of marketable securities 612,021 483,730
Purchases of property, equipment and other, net (5,790) (16,261)
Acquired in-process research and development technology (20,250) (26,750)
Net cash provided by investing activities 297,795 193,565
Cash flows from financing activities:    
Payments for repurchases of common stock (585,858) (449,694)
Proceeds from issuance of common stock under the equity incentive plans and stock purchase plan 37,710 23,238
Taxes paid related to net share settlement of equity awards (63,018) (20,014)
Net cash used in financing activities (611,166) (446,470)
Net decrease in cash and cash equivalents (52,941) (64,535)
Cash and cash equivalents at beginning of period 217,374 262,994
Cash and cash equivalents at end of period 164,433 198,459
Non-cash operating activities:    
Right-of-use assets obtained in exchange for lease obligations $ 0 $ 15,313