Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 925,357	$ 601,559
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization and other	45,169	37,864
Stock-based compensation	165,980	135,632
Noncash lease expense	13,837	12,738
Deferred income taxes	(148,355)	(573)
Unrealized gain on equity investments	(24,121)	0
Amortization of investment premiums	14,167	19,193
Changes in operating assets and liabilities:
Accounts receivable, net	(129,947)	(6,050)
Inventories	(449,792)	(95,997)
Prepaid expenses and other current assets	(68,996)	(71,300)
Other assets	(17,899)	(2,915)
Accounts payable	73,480	(1,075)
Accrued liabilities	14,690	31,316
Deferred revenue	(1,245)	149,613
Income taxes payable	41,074	(3,565)
Other liabilities	(1,059)	(15,820)
Net cash provided by operating activities	452,340	790,620
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from maturities of marketable securities	1,277,821	1,158,723
Purchases of marketable securities	(973,489)	(1,974,853)
Purchases of property and equipment	(34,184)	(55,455)
Business acquisitions, net of cash acquired	(145,087)	0
Escrow receipts from past business acquisitions	0	1,299
Investments and notes receivable in privately-held companies	(12,691)	(10,684)
Proceeds from sale of marketable securities	186,782	19,607
Net cash provided by (used in) investing activities	299,152	(861,363)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from issuance of common stock under equity plans	43,073	56,154
Tax withholdings paid on behalf of employees for net share settlement	(25,542)	(10,622)
Repurchases of common stock	(667,470)	(235,512)
Net cash used in financing activities	(649,939)	(189,980)
Effect of exchange rate changes	(6,090)	(1,513)
NET INCREASE (DECREASE) IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	95,463	(262,236)
CASH, CASH EQUIVALENTS AND RESTRICTED CASH —Beginning of period	625,050	897,454
CASH, CASH EQUIVALENTS AND RESTRICTED CASH —End of period	720,513	635,218
SUPPLEMENTAL DISCLOSURES OF NON-CASH INVESTING AND FINANCING INFORMATION:
Right-of-use assets obtained in exchange for new operating lease liabilities	7,300	4,824
Property and equipment included in accounts payable and accrued liabilities	5,704	3,849
Common stock issued for business acquisition	$ 4,049	$ 0