CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 553,398	$ 78,823
Marketable securities	157,649	0
Restricted cash	93,880	2,947
Accounts receivable	262,012	7,500
Prepaid expenses and other current assets	181,264	7,977
Total current assets	1,248,203	97,247
Restricted cash	1,460	410
Property and equipment, net	179,954	11,445
Intangible assets, net	5,725	5,581
Goodwill	135,379	51,154
Other non-current assets	11,758	7,120
Total assets	1,582,479	172,957
Current liabilities:
Accounts payable	54,332	2,910
Accrued expenses	137,390	14,867
Accrued interest	5,078	5,078
Deferred revenue	273,228	1,678
Current portion of finance lease liabilities	105,862	0
Other current liabilities	3,782	1,262
Total current liabilities	579,672	25,795
Convertible notes payable	322,035	320,611
Non-current finance lease liabilities	40,083	0
Other non-current liabilities	13,480	12,568
Total liabilities	955,270	358,974
Commitments and contingencies
Preferred stock, $0.01 par value, 2,000,000 shares authorized at December 31, 2020 and 2019; no shares issued and outstanding at December 31, 2020 and 2019	0	0
Stockholders’ Equity (Deficit):
Common stock, $0.01 par value, 600,000,000 shares authorized at December 31, 2020 and 2019; and 71,350,365 shares issued and 70,953,739 shares outstanding at December 31, 2020 and 32,399,352 shares issued and 32,352,416 shares outstanding at December 31, 2019	714	324
Additional paid-in capital	2,535,476	1,260,551
Accumulated deficit	(1,874,199)	(1,431,801)
Treasury stock, 396,626 shares, cost basis at December 31, 2020 and 46,936 shares, cost basis at December 31, 2019	(41,806)	(2,583)
Accumulated other comprehensive income (loss)	7,024	(12,508)
Total stockholders’ equity (deficit)	627,209	(186,017)
Total liabilities and stockholders’ equity (deficit)	$ 1,582,479	$ 172,957