Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Current assets
Cash and cash equivalents	$ 57,941	$ 46,637
Restricted cash	490	490
Marketable securities	369,289	397,458
Other receivables	2,792	2,612
Derivative asset	213	202
Prepaid expenses and other current assets	2,559	3,774
Total current assets	433,284	451,173
Property, plant, and equipment, net	69,329	57,185
Operating lease right-of-use asset	2,710	1,782
Intangible assets, net	206	215
Other long-term assets	95	62
Total assets	505,624	510,417
Current liabilities
Accounts payable	3,088	2,451
Accrued expenses	2,468	973
Operating lease liability, current	412	280
Other liabilities, current	90	380
Derivative liability	947	103
Total current liabilities	7,005	4,187
Earnout liability	112,531	127,757
Canadian Government Research and Development Program Liability	6,852	6,762
Assumed common stock warrants liability	54,634	52,860
Stockholder note	5,189	5,189
Related party other liabilities, long-term	5,776	5,720
Operating lease liability	2,342	1,486
Other liabilities, long-term	2,900	2,946
Total liabilities	197,229	206,907
Commitments and contingencies (See Note 19)
STOCKHOLDERS’ EQUITY
Preferred stock, $0.0001 par value, 10,000,000 shares authorized; no shares issued and outstanding as of March 31, 2022 and December 31, 2021	0	0
Common stock, $0.0001 par value, 1,000,000,000 shares authorized; 141,418,989 and 141,301,569, issued and outstanding as of March 31, 2022 and December 31, 2021, respectively (including 4,500,000 Sponsor Vesting Shares)	16	16
Additional paid-in capital	362,770	361,542
Accumulated deficit	(49,451)	(56,797)
Accumulated other comprehensive loss	(4,941)	(1,251)
Total stockholders’ equity	308,394	303,510
Total liabilities and stockholders’ equity	$ 505,624	$ 510,417