CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 926,119	$ 1,099,370
Marketable securities, short-term	86,749	71,972
Accounts receivable, net of allowance for doubtful accounts of $9,764 and $9,245, respectively	950,892	897,198
Inventories	275,669	230,230
Prepaid expenses and other current assets	241,339	195,305
Total current assets	2,480,768	2,494,075
Marketable securities, long-term	107,695	125,320
Property, plant and equipment, net	1,140,922	1,081,926
Operating lease right-of-use assets, net	125,252	121,257
Goodwill	411,965	418,547
Intangible assets, net	103,499	109,709
Deferred tax assets	1,515,620	1,533,767
Other assets	57,693	57,509
Total assets	5,943,414	5,942,110
Current liabilities:
Accounts payable	186,509	163,886
Accrued liabilities	465,071	607,315
Deferred revenues	1,212,067	1,152,870
Total current liabilities	1,863,647	1,924,071
Income tax payable	123,476	118,072
Operating lease liabilities	104,983	102,656
Other long-term liabilities	184,456	174,597
Total liabilities	2,276,562	2,319,396
Commitments and contingencies (Notes 6 and 7)
Stockholders’ equity:
Preferred stock, $0.0001 par value (5,000 shares authorized; none issued)	0	0
Common stock, $0.0001 par value (200,000 shares authorized; 78,805 and 78,710 issued and outstanding, respectively)	8	8
Additional paid-in capital	992,287	999,006
Accumulated other comprehensive income (loss), net	(5,713)	4,326
Retained earnings	2,680,270	2,619,374
Total stockholders’ equity	3,666,852	3,622,714
Total liabilities and stockholders’ equity	$ 5,943,414	$ 5,942,110