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Condensed Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2023
Apr. 01, 2022
Statement of Cash Flows [Abstract]    
Net income $ 40,028 $ 68,573
Adjustments to reconcile net income to net cash provided by operating activities:    
Depreciation 6,855 4,490
Stock-based compensation 16,661 19,759
Non-cash lease expense 6,731 1,385
Deferred taxes 0 15,318
Acquired in-process research and development technology 36,500 0
Other, net (3,743) 1,580
Changes in operating assets and liabilities:    
Trade receivables, net (19,178) 91,793
Inventory (8,370) (3,520)
Prepaid expenses and other assets 10,372 (3,605)
Deferred revenue (707) (1,169)
Accrued collaboration liabilities (1,864) (54,261)
Accounts payable and other liabilities 1,123 7,376
Net cash provided by operating activities 84,408 147,719
Cash flows from investing activities:    
Purchases of property, equipment and other (12,024) (5,609)
Acquired in-process research and development technology (36,500) 0
Purchases of investments (311,837) (336,545)
Proceeds from maturities and sales of investments 310,769 267,615
Net cash used in investing activities (49,592) (74,539)
Cash flows from financing activities:    
Proceeds from issuance of common stock under equity incentive plans 7,143 4,891
Taxes paid related to net share settlement of equity awards (2,557) (4,686)
Net cash provided by financing activities 4,586 205
Net increase in cash, cash equivalents and restricted cash equivalents 39,402 73,385
Cash, cash equivalents and restricted cash equivalents at beginning of period 502,677 663,891
Cash, cash equivalents and restricted cash equivalents at end of period $ 542,079 $ 737,276