CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 1,570,954	$ 1,515,116
Restricted cash	11,492	11,490
Accounts receivable	478,156	454,993
Inventory	106,648	8,872
Prepaid expenses and other current assets	180,155	164,648
Total current assets	2,347,405	2,155,119
Property and equipment, net	247,213	228,696
Right of use asset, net	86,352	40,123
Intangible assets, net	4,535	4,770
Goodwill	130,756	131,479
Other non-current assets	18,614	16,566
Total assets	2,834,875	2,576,753
Current liabilities:
Accounts payable	135,128	127,050
Accrued expenses	559,876	673,731
Deferred revenue	1,094,232	1,422,944
Current portion of finance lease liabilities	116,684	130,533
Convertible notes payable	323,814	0
Other current liabilities	31,271	36,061
Total current liabilities	2,261,005	2,390,319
Deferred revenue, noncurrent	441,748	172,528
Convertible notes payable	0	323,458
Other non-current liabilities	66,798	42,121
Total liabilities	2,769,551	2,928,426
Commitments and contingencies (Note 15)
Stockholders' equity (deficit):
Common stock, $0.01 par value, 600,000,000 shares authorized at March 31, 2022 and December 31, 2021; and 78,722,337 shares issued and 78,122,978 shares outstanding at March 31, 2022 and 76,433,151 shares issued and 75,841,171 shares outstanding at December 31, 2021	787	764
Additional paid-in capital	3,566,292	3,351,967
Accumulated deficit	(3,414,542)	(3,617,950)
Treasury stock, cost basis, 599,359 shares at March 31, 2022 and 591,980 shares at December 31, 2021	(85,901)	(85,101)
Accumulated other comprehensive loss	(1,312)	(1,353)
Total stockholders’ equity (deficit)	65,324	(351,673)
Total liabilities and stockholders’ equity (deficit)	$ 2,834,875	$ 2,576,753