CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 134,298	$ 200,376
Adjustments to reconcile net income to net cash provided by operating activities:
Deferred taxes	17,464	28,979
Depreciation and amortization	29,626	25,635
Stock-based compensation	31,621	27,241
Non-cash operating lease cost	7,526	5,911
Arbitration award gain	0	(43,403)
Other non-cash operating activities	8,612	5,795
Changes in assets and liabilities:
Accounts receivable	(55,543)	(67,423)
Inventories	(49,455)	(15,582)
Prepaid expenses and other assets	(48,665)	(34,858)
Accounts payable	7,025	(14,936)
Accrued and other long-term liabilities	(126,400)	(475)
Long-term income tax payable	5,405	3,920
Deferred revenues	68,984	106,007
Net cash provided by operating activities	30,498	227,187
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of property, plant and equipment	(87,328)	(43,431)
Purchase of marketable securities	(15,041)	0
Proceeds from maturities of marketable securities	6,095	0
Proceeds from sales of marketable securities	8,528	0
Repayment on unsecured promissory note	0	4,594
Proceeds from arbitration award	0	43,403
Other investing activities	(2,452)	0
Net cash (used in) provided by investing activities	(90,198)	4,566
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from issuance of common stock	14,827	13,133
Common stock repurchases	(75,036)	0
Payroll taxes paid upon the vesting of equity awards	(51,533)	(66,568)
Net cash used in financing activities	(111,742)	(53,435)
Effect of foreign exchange rate changes on cash, cash equivalents, and restricted cash	(1,826)	(7,487)
Net (decrease) increase in cash, cash equivalents, and restricted cash	(173,268)	170,831
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	$ 926,871	$ 1,132,305