Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Current assets
Cash and cash equivalents ($3,382 and $3,406 as of December 31, 2021 and 2020, respectively, for joint venture)	$ 320,700	$ 113,216
Marketable securities	1,126,975	884,336
Prepaid expenses and other current assets	15,757	11,616
Total current assets	1,463,432	1,009,168
Property and equipment, net	166,183	43,696
Right-of-use assets - finance lease	30,886
Right-of-use assets- operating lease	36,913	11,712
Other assets	18,234	2,193
Total assets	1,715,648	1,066,769
Current liabilities
Accounts payable	14,182	5,383
Accrued liabilities	6,078	3,356
Accrued compensation and benefits	9,119	2,391
Operating lease liability, short-term	1,209	1,220
Finance lease liability, short-term	19
Total current liabilities	30,607	12,350
Operating lease liability, long-term	36,760	11,244
Finance lease liability, long-term	39,378
Other liabilities	315
Assumed common stock warrant liabilities		689,699
Total liabilities	107,060	713,293
Commitment and contingencies (see Note 8)
Redeemable non-controlling interest	1,693	1,704
Stockholders’ equity
Preferred stock- $0.0001 par value; 100,000 shares authorized, none issued and outstanding at December 31, 2021 and 2020
Common stock - $0.0001 par value; 1,250,000 shares authorized (1,000,000 Class A and 250,000 Class B); 332,869 Class A and 95,450 Class B shares issued and outstanding at December 31, 2021, 207,769 Class A and 156,225 Class B shares issued and outstanding at December 31, 2020	43	36
Additional paid-in-capital	3,634,665	2,329,406
Accumulated other comprehensive loss	(4,208)	(31)
Accumulated deficit	(2,023,605)	(1,977,639)
Total stockholders’ equity	1,606,895	351,772
Total liabilities, redeemable non-controlling interest and stockholders’ equity	$ 1,715,648	$ 1,066,769