CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 615,532	$ 550,425
Short-term investments:	0	318,202
Accounts receivable, net of allowance for doubtful accounts of $13,716 and $6,756, respectively	626,046	550,291
Inventories	123,093	112,051
Prepaid expenses and other current assets	108,576	102,450
Total current assets	1,473,247	1,633,419
Property, plant and equipment, net	703,657	631,730
Operating lease right-of-use assets, net	83,386	56,244
Goodwill and intangible assets, net	555,946	75,692
Deferred tax assets	1,566,227	64,007
Other assets	32,628	39,610
Total assets	4,415,091	2,500,702
Current liabilities:
Accounts payable	119,184	87,250
Accrued liabilities	318,471	319,958
Deferred revenues	684,139	563,762
Total current liabilities	1,121,794	970,970
Income tax payable	108,669	102,794
Operating lease liabilities	65,518	43,463
Other long-term liabilities	85,639	37,306
Total liabilities	1,381,620	1,154,533
Commitments and contingencies (Notes 9 and 10)
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; 78,849 and 78,433 issued and outstanding, respectively)	8	8
Additional paid-in capital	951,740	906,937
Accumulated other comprehensive income (loss), net	24,911	(688)
Retained earnings	2,056,812	439,912
Total stockholders’ equity	3,033,471	1,346,169
Total liabilities and stockholders’ equity	$ 4,415,091	$ 2,500,702