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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Cash flows from operating activities:    
Net income $ 169,548 $ 21,703
Adjustments to reconcile net income to net cash provided by (used in) operating activities:    
Depreciation and amortization 21,947 19,211
Stock-based compensation 59,778 53,379
Deferred income taxes (34,251) (22,163)
Other, net 2,954 (2,651)
Unrealized (gain) loss on long term investments (99,947) 5,318
(Gain) loss on change in fair value of acquisition-related contingent consideration (456) 6,196
Changes in operating assets and liabilities:    
Accounts receivable (1,969) 21,091
Prepaid expenses and other assets (1,698) (24,354)
Inventory (57,197) (33,320)
Accounts payable 54,637 (221,913)
Accrued and other liabilities 105,465 71,900
Net cash provided by (used in) operating activities 218,811 (105,603)
Cash flows from investing activities:    
Sale of long term investments 0 45
Capital expenditures (9,549) (11,906)
Payments for intangible assets 0 (15,000)
Purchases of marketable securities (165,808) (54,887)
Sale and maturities of marketable securities 102,245 53,189
Net cash used in investing activities (73,112) (28,559)
Cash flows from financing activities:    
Proceeds from issuance of common stock under stock plans 477 13,988
Tax withholdings related to restricted and performance share vesting (6,174) (2,753)
Payment of finance lease liabilities (871) (802)
Payment of contingent consideration (5,845) (6,424)
Net cash (used in) provided by financing activities (12,413) 4,009
Effect of exchange rates on cash, cash equivalents, and restricted cash (676) (199)
Net increase (decrease) in cash, cash equivalents, and restricted cash 132,610 (130,352)
Cash, cash equivalents, and restricted cash at beginning of period 3,215,221 2,953,120
Cash, cash equivalents, and restricted cash at end of period 3,347,831 2,822,768
Supplemental Schedule of Cash Flow Information    
Income taxes paid 2,691 7,107
Unpaid purchases of property and equipment 383 3,059
Leased assets obtained in exchange for new operating lease liabilities 0 809
Leased assets obtained in exchange for new finance lease liabilities $ 550 $ 385