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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
 9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Cash flows from operating activities:    
Net (loss) income $ (168,597) $ 396,520
Adjustments to reconcile net (loss) income to net cash (used in) provided by operating activities:    
Depreciation and amortization 66,515 60,898
Stock-based compensation 194,340 155,899
Deferred income taxes (85,609) (92,919)
Other, net (4,824) (543)
Realized and unrealized gain on equity investments (126,206) (9,839)
Loss on change in fair value of acquisition-related contingent consideration 23,847 14,144
Changes in operating assets and liabilities:    
Accounts receivable (14,893) (12,384)
Prepaid expenses and other assets (55,381) (62,081)
Inventory (93,352) (77,193)
Accounts payable 69,109 (138,135)
Accrued and other liabilities 149,170 114,391
Net cash (used in) provided by operating activities (45,881) 348,758
Cash flows from investing activities:    
Purchase of long term investments 0 (10,000)
Sale of equity investments 282,866 45
Capital expenditures (68,879) (30,219)
Payments for intangible assets (13,900) (15,000)
Purchases of marketable securities (228,986) (222,228)
Sale and maturities of marketable securities 207,881 224,225
Net cash provided by (used in) investing activities 178,982 (53,177)
Cash flows from financing activities:    
Repurchases of common stock (2,004,790) 0
Proceeds from issuance of common stock under stock plans 16,242 28,319
Tax withholdings related to restricted and performance share vesting (39,416) (28,061)
Payment of finance lease liabilities (2,761) (2,523)
Payment of contingent consideration (11,216) (18,114)
Net cash used in financing activities (2,041,941) (20,379)
Effect of exchange rates on cash, cash equivalents, and restricted cash (535) 625
Net (decrease) increase in cash, cash equivalents, and restricted cash (1,909,375) 275,827
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 1,305,846 3,228,947
Supplemental Schedule of Cash Flow Information    
Income taxes paid 302,860 253,180
Unpaid purchases of property and equipment 3,538 11
Unpaid excise tax on repurchase of common stock 19,185 0
Leased assets obtained in exchange for new operating lease liabilities 2,436 5,275
Leased assets obtained in exchange for new finance lease liabilities $ 1,959 $ 1,176