CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025
Cash flows from operating activities:
Net income	$ 450,524	$ 270,061
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	32,173	24,569
Amortization of discount on available-for-sale securities	(484)	(2,885)
Gain on deferred compensation plan investments	(7,343)	(4,230)
Deferred taxes, net	(125)	14,496
Stock-based compensation expense	94,282	112,904
Other	(1,102)	29
Changes in operating assets and liabilities:
Accounts receivable	(88,002)	(22,264)
Inventories	(111,194)	(71,018)
Other assets	17,320	83,395
Accounts payable	33,276	36,627
Accrued compensation and related benefits	6,983	15,584
Income tax liabilities	32,640	33,798
Other accrued liabilities	19,211	2,958
Net cash provided by operating activities	478,159	494,024
Cash flows from investing activities:
Purchases of property and equipment	(153,272)	(88,485)
Purchases of investments	(263,797)	(393,010)
Maturities and sales of investments	14,591	211,227
Other	5,621	(3,015)
Net cash used in investing activities	(396,857)	(273,283)
Cash flows from financing activities:
Property and equipment purchased on extended payment terms	(897)	(1,902)
Proceeds from common stock issued	5,830	5,335
Repurchases of common stock	(4,048)	(3,687)
Dividends and dividend equivalents paid	(179,496)	(135,073)
Net cash used in financing activities	(178,611)	(135,327)
Effect of change in exchange rates	3,591	10,169
Net increase (decrease) in cash, cash equivalents and restricted cash	(93,718)	95,583
Cash, cash equivalents and restricted cash, beginning of period	1,099,521	691,941
Cash, cash equivalents and restricted cash, end of period	1,005,803	787,524
Reconciliation of cash, cash equivalents, and restricted cash to the condensed consolidated balance sheets:
Cash and cash equivalents	1,005,587	787,382
Restricted cash included in other long-term assets	216	142
Total cash, cash equivalents, and restricted cash	1,005,803	787,524
Supplemental disclosures for cash flow information:
Cash paid for income taxes, net	88,705	17,007
Non-cash investing and financing activities:
Liability accrued for property and equipment purchases	26,997	6,108
Liability accrued for dividends and dividend equivalents	$ 100,326	$ 77,193