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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Cash flows from operating activities:    
Net income $ 21,703 $ 37,992
Adjustments to reconcile net income to net cash provided by operating activities:    
Depreciation and amortization 19,211 16,438
Stock-based compensation 53,379 43,841
Deferred income taxes (22,163) 2,106
Other, net (2,651) 2,091
Unrealized loss on long term investments 5,318 46,585
Loss on change in fair value of acquisition-related contingent consideration 6,196 6,382
Changes in operating assets and liabilities:    
Accounts receivable 21,091 53,956
Prepaid expenses and other assets (24,354) (13,971)
Inventory (33,320) (13,903)
Accounts payable (221,913) (19,563)
Accrued and other liabilities 71,900 53,787
Net cash (used in) provided by operating activities (105,603) 215,741
Cash flows from investing activities:    
Sale of long term investments 45 0
Capital expenditures (11,906) (17,006)
Payments for intangible assets (15,000) 0
Purchases of marketable securities (54,887) 0
Sale and maturities of marketable securities 53,189 258
Net cash used in investing activities (28,559) (16,748)
Cash flows from financing activities:    
Proceeds from issuance of common stock under stock plans 13,988 16,398
Tax withholdings related to restricted and performance share vesting (2,753) (2,161)
Payment of finance lease liabilities (802) (668)
Payment of contingent consideration (6,424) (13,473)
Net cash provided by financing activities 4,009 96
Effect of exchange rates on cash, cash equivalents, restricted cash and investments (199) 210
Net (decrease) increase in cash, cash equivalents, restricted cash and investments (130,352) 199,299
Cash, cash equivalents, restricted cash and investments at beginning of period 2,953,120 2,059,160
Cash, cash equivalents, restricted cash and investments at end of period 2,822,768 2,258,459
Supplemental Schedule of Cash Flow Information    
Income taxes paid 7,107 3,472
Unpaid purchases of property and equipment 3,059 15,764
Leased assets obtained in exchange for new operating lease liabilities 809 1,618
Leased assets obtained in exchange for new finance lease liabilities $ 385 $ 584