Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 188,785	$ 251,253
Prepaid expenses and other current assets	8,385	6,626
Total current assets	197,170	257,879
Restricted cash	2,628
Deferred lease asset	691	715
Property, plant and equipment, net	40,553	287
Total assets	241,042	258,881
Current liabilities:
Accounts payable	22,051	1,994
Accrued expenses and other current liabilities	21,163	5,135
Total current liabilities	43,214	7,129
Build-to-suit lease liability	26,607
Term loan	27,812
Other non-current liabilities	3,015	450
Total liabilities	100,648	7,579
Commitments and contingencies - Note 11
Stockholders' equity
Preferred stock, $0.00001 par value per share; 10,000,000 shares authorized and no shares issued and outstanding as of September 30, 2021 and December 31, 2020
Common stock, $0.00001 par value per share; 200,000,000 shares authorized and 38,473,945 and 37,761,435 issued and outstanding as of September 30, 2021 and December 31, 2020
Additional paid-in capital	325,657	312,428
Accumulated deficit	(185,263)	(61,126)
Total stockholders’ equity	140,394	251,302
Total liabilities and stockholders' equity	$ 241,042	$ 258,881