CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 147,270	$ 141,810
Adjustments to reconcile net income to net cash used in operating activities:
Depreciation and amortization	77,525	77,416
Non-cash interest expense	3,198	3,089
Amortization of premium (accretion of discount) on investments	(6,781)	3,741
Stock-based compensation	152,244	149,574
Gain on sale of nonfinancial assets, net	0	(108,000)
Loss on equity investment	12,650	0
Deferred income taxes	(20,137)	(743)
Unrealized foreign exchange loss (gain)	5,454	(16,075)
Non-cash changes in the fair value of contingent consideration	0	2,243
Other	(224)	(700)
Changes in operating assets and liabilities:
Accounts receivable, net	(131,940)	(53,752)
Inventory	(97,948)	(27,419)
Other current assets	(59,389)	(8,558)
Other assets	(20,812)	12,140
Accounts payable and other short-term liabilities	56,333	(2,398)
Other long-term liabilities	14,333	(3,252)
Net cash provided by operating activities	131,776	169,116
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment	(67,774)	(85,271)
Maturities and sales of investments	751,677	477,244
Purchases of investments	(727,043)	(457,382)
Proceeds from sale of nonfinancial assets	0	110,000
Purchase of intangible assets	(3,141)	(9,910)
Net cash provided by (used in) investing activities	(46,281)	34,681
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from exercises of awards under equity incentive plans	54,548	43,866
Taxes paid related to net share settlement of equity awards	(72,399)	(50,696)
Payments of contingent consideration	(9,475)	(21,054)
Principal repayments of financing leases	(2,241)	(1,635)
Net cash used in financing activities	(29,567)	(29,519)
Effect of exchange rate changes on cash	4,955	(39)
NET INCREASE IN CASH AND CASH EQUIVALENTS	60,883	174,239
Cash and cash equivalents:
Beginning of period	724,531	587,276
End of period	785,414	761,515
SUPPLEMENTAL CASH FLOW DISCLOSURES:
Cash paid for interest	6,640	6,575
Cash paid for income taxes	51,687	13,425
SUPPLEMENTAL CASH FLOW DISCLOSURES FOR NON-CASH INVESTING AND FINANCING ACTIVITIES:
Increase (decrease) in accounts payable and accrued liabilities related to fixed assets	7,977	(5,240)
Increase (decrease) in accounts payable and accrued liabilities related to intangible assets	$ 6,449	$ (224)