CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 247,098	$ 400,090
Adjustments to reconcile net income to net cash provided by operating activities:
Deferred taxes	14,747	39,961
Depreciation and amortization	59,907	51,527
Stock-based compensation	65,761	56,096
Non-cash operating lease cost	15,075	12,413
Arbitration award gain	0	(43,403)
Other non-cash operating activities	16,172	13,174
Changes in assets and liabilities:
Accounts receivable	(53,462)	(164,822)
Inventories	(91,060)	(49,070)
Prepaid expenses and other assets	(14,219)	(70,132)
Accounts payable	(23,944)	(5,736)
Accrued and other long-term liabilities	(212,896)	65,650
Long-term income tax payable	(1,657)	7,535
Deferred revenues	136,021	231,408
Net cash provided by operating activities	157,543	544,691
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of property, plant and equipment	(163,348)	(167,668)
Purchase of marketable securities	(20,466)	0
Proceeds from maturities of marketable securities	21,690	0
Proceeds from sales of marketable securities	92,235	0
Repayment on unsecured promissory note	0	4,594
Proceeds from arbitration award	0	43,403
Other investing activities	(2,189)	(4,249)
Net cash used in investing activities	(72,078)	(123,920)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from issuance of common stock	14,827	13,133
Common stock repurchases	(275,036)	(160,000)
Payments for equity forward contracts related to accelerated share repurchase agreements	0	(40,000)
Payroll taxes paid upon the vesting of equity awards	(52,187)	(104,889)
Net cash used in financing activities	(312,396)	(291,756)
Effect of foreign exchange rate changes on cash, cash equivalents, and restricted cash	4,978	(3,511)
Net (decrease) increase in cash, cash equivalents, and restricted cash	(221,953)	125,504
Cash, cash equivalents, and restricted cash at beginning of the period	1,100,139	961,474
Cash, cash equivalents, and restricted cash at end of the period	$ 878,186	$ 1,086,978