CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 106,892	$ 148,462
Adjustments to reconcile net income to net cash used in operating activities:
Depreciation and amortization	51,840	52,614
Non-cash interest expense	2,058	2,062
Amortization of premium (accretion of discount) on investments	(4,533)	3,070
Stock-based compensation	103,857	94,911
Gain on sale of nonfinancial assets, net	0	(108,000)
Loss on equity investment	12,650	0
Deferred income taxes	(5,108)	3,455
Unrealized foreign exchange loss (gain)	7,455	(12,333)
Non-cash changes in the fair value of contingent consideration	0	1,338
Other	361	(18)
Changes in operating assets and liabilities:
Accounts receivable, net	(145,831)	(92,562)
Inventory	(56,476)	(1,431)
Other current assets	(53,430)	(12,001)
Other assets	(5,616)	9,149
Accounts payable and other short-term liabilities	(25,093)	(76,345)
Other long-term liabilities	7,104	(1,576)
Net cash provided by (used in) operating activities	(3,870)	10,795
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment	(46,039)	(55,971)
Maturities and sales of investments	491,063	311,598
Purchases of investments	(444,049)	(304,805)
Proceeds from sale of nonfinancial assets	0	110,000
Purchase of intangible assets	(1,457)	(2,739)
Net cash provided by (used in) investing activities	(482)	58,083
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from exercises of awards under equity incentive plans	50,193	29,493
Taxes paid related to net share settlement of equity awards	(67,862)	(44,377)
Payments of contingent consideration	(9,475)	(21,054)
Principal repayments of financing leases	(1,635)	(1,122)
Net cash used in financing activities	(28,779)	(37,060)
Effect of exchange rate changes on cash	2,981	708
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	(30,150)	32,526
Cash and cash equivalents:
Beginning of period	724,531	587,276
End of period	694,381	619,802
SUPPLEMENTAL CASH FLOW DISCLOSURES:
Cash paid for interest	5,175	5,137
Cash paid for income taxes	28,183	11,821
SUPPLEMENTAL CASH FLOW DISCLOSURES FOR NON-CASH INVESTING AND FINANCING ACTIVITIES:
Increase in accounts payable and accrued liabilities related to fixed assets	8,669	1,012
Increase (decrease) in accounts payable and accrued liabilities related to intangible assets	$ (2,344)	$ 6,563