UNAUDITED 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	$ 116,956	$ 117,964
Adjustments to reconcile net income to net cash provided by operating activities:
Stock-based compensation	96,228	74,454
Deferred income taxes	(53,311)	30,349
Unrealized loss (gain) on strategic investments and marketable securities, net	42,306	(92,498)
Depreciation and amortization	22,587	18,171
Bond amortization	(12,071)	(61)
Noncash lease expense	4,890	4,997
Unrecognized tax benefits	4,302	3,519
Amortization of debt issuance cost	2,328
Coupon interest expense	1,073
Other noncash items	(1,140)	2,659
Change in assets and liabilities:
Accounts and notes receivable and contract assets	(182,468)	(115,046)
Inventory	(59,564)	(66,267)
Prepaid expenses and other assets	(64,608)	(17,871)
Accounts payable, accrued and other liabilities	13,423	28,684
Deferred revenue	118,294	115,187
Net cash provided by operating activities	49,225	104,241
Cash flows from investing activities:
Purchases of investments	(426,993)	(194,142)
Proceeds from call, maturity, and sale of investments	461,214	15,485
Exercise of warrants of strategic investments		(6,555)
Purchases of property and equipment	(35,624)	(44,218)
Proceeds from disposal of property and equipment	67	226
Purchases of intangible assets	(579)	(193)
Strategic investments	(17,692)	(70,500)
Business acquisition, net of cash acquired	(21,090)	(2,104)
Net cash used in investing activities	(40,697)	(302,001)
Cash flows from financing activities:
Net proceeds from equity offering	94,705	(74)
Proceeds from options exercised	54,503
Income and payroll tax payments for net-settled stock awards	(104,076)	(2,391)
Net cash provided by (used in) financing activities	45,132	(2,465)
Effect of exchange rate changes on cash and cash equivalents	(1,201)	(6,783)
Net increase (decrease) in cash and cash equivalents	52,459	(207,008)
Cash and cash equivalents and restricted cash, beginning of period	355,552	356,438
Cash and cash equivalents and restricted cash, end of period	$ 408,011	$ 149,430