Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 197,370	$ 251,253
Prepaid expenses and other current assets	9,932	6,626
Total current assets	207,302	257,879
Deferred lease asset	691	715
Property, plant and equipment, net	33,867	287
Total assets	241,860	258,881
Current liabilities:
Accounts payable	6,355	1,994
Accrued expenses and other current liabilities	22,036	5,135
Total current liabilities	28,391	7,129
Build-to-suit lease liability	26,209
Other non-current liabilities	765	450
Total liabilities	55,365	7,579
Commitments and contingencies - Note 10
Stockholders' equity
Preferred stock, $0.00001 par value per share; 10,000,000 shares authorized and no shares issued and outstanding as of June 30, 2021 and December 31, 2020
Common stock, $0.00001 par value per share; 200,000,000 shares authorized and 38,391,165 and 37,761,435 issued and outstanding as of June 30, 2021 and December 31, 2020, respectively
Additional paid-in capital	320,571	312,428
Accumulated deficit	(134,076)	(61,126)
Total stockholders’ equity	186,495	251,302
Total liabilities and stockholders' equity	$ 241,860	$ 258,881