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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
 [1]
CASH FLOWS FROM OPERATING ACTIVITIES:      
Net income (loss) $ 141,561 $ (64,080) $ 854,029 [2],[3]
Adjustments to reconcile net income (loss) to net cash provided by operating activities:      
Depreciation and amortization 101,969 108,039 105,172
Non-cash interest expense 4,117 4,146 16,511
Amortization of premium on investments 3,043 5,155 567
Stock-based compensation 196,308 197,263 189,711
Gain on sale of nonfinancial assets, net (108,000) 0 (52,820)
Inventory reserves, net of stock-based compensation 0 0 75,609
Deferred income taxes (52,087) (15,608) (889,993)
Unrealized foreign exchange loss (gain) (14,287) (1,810) 8,011
Non-cash changes in the fair value of contingent consideration 1,704 8,026 4,500
Other (2,043) (2,629) (997)
Changes in operating assets and liabilities:      
Accounts receivable, net (82,033) 65,574 (59,035)
Inventory (68,264) (35,060) (61,151)
Other current assets 7,822 29,760 18,312
Other assets (19,859) (6,593) (29,007)
Accounts payable and other short-term liabilities 59,018 15,689 (87,025)
Other long-term liabilities 6,933 (3,336) (7,029)
Net cash provided by operating activities 175,902 304,536 85,365
CASH FLOWS FROM INVESTING ACTIVITIES:      
Purchases of property, plant and equipment (120,959) (95,578) (114,312)
Maturities and sales of investments 619,995 691,049 555,834
Purchases of investments (611,809) (937,143) (529,663)
Proceeds from sale of nonfinancial assets 103,325 0 67,159
Purchase of intangible assets (10,581) (23,647) (23,207)
Investment in convertible note 0 0 (8,709)
Other 0 (994) (723)
Net cash used in investing activities (20,029) (366,313) (53,621)
CASH FLOWS FROM FINANCING ACTIVITIES:      
Proceeds from exercises of awards under equity incentive plans 69,333 49,194 71,913
Taxes paid related to net share settlement of equity awards (54,283) (45,805) (44,638)
Repurchase of common stock 0 0 (50,000)
Proceeds from convertible senior subordinated note offering, net 0 0 585,752
Repayments of convertible debt 0 0 (374,991)
Payments of contingent consideration (31,095) 0 0
Principal repayments of financing leases (2,605) (3,039) (6,918)
Other 0 (398) 0
Net cash provided by (used in) financing activities (18,650) (48) 181,118
Effect of exchange rate changes on cash 32 (57) (1,150)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS 137,255 (61,882) 211,712
Cash and cash equivalents:      
Beginning of period 587,276 649,158 [1] 437,446
End of period 724,531 587,276 649,158
SUPPLEMENTAL CASH FLOW DISCLOSURES:      
Cash paid for interest 10,281 10,395 12,178
Cash paid for income taxes 54,372 18,153 8,977
SUPPLEMENTAL CASH FLOW DISCLOSURES FOR NON-CASH INVESTING AND FINANCING ACTIVITIES:      
Decrease in accounts payable and accrued liabilities related to fixed assets (1,482) (4,749) (5,184)
Increase (decrease) in accounts payable and accrued liabilities related to intangible assets $ 742 $ 9,428 $ (292)
[1] Certain December 31, 2020 balances have been corrected for an immaterial error identified in the third quarter of 2022. See Note 1 to these Consolidated Financial Statements for details.
[2] Certain December 31, 2020 amounts have been corrected for an immaterial error identified in the third quarter of 2022. See Note 1 to these Consolidated Financial Statements for details.
[3] December 31, 2020 Net Income has been corrected for an immaterial error identified in the third quarter of 2022. See Note 1 to these Consolidated Financial Statements for details.