Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 148,643	$ 57,242
Marketable securities (note 6)	489,439	534,845
Accounts receivable	874	986
Prepaid expenses and other current assets	6,006	7,225
Total current assets	644,962	600,298
Marketable securities, long-term (note 6)	292,792	128,682
Operating lease right-of-use asset, net (note 8)	9,193	10,406
Property, plant and equipment, net (note 7)	9,653	6,500
Deferred tax assets (note 13)	802	509
Prepaid expenses, long-term	7,396	7,751
Total assets	964,798	754,146
Current liabilities:
Accounts payable and accrued expenses (note 9)	25,974	22,214
Operating lease liability (note 8)	1,299	488
Total current liabilities	27,273	22,702
Operating lease liability, long-term (note 8)	9,604	9,947
Total liabilities	36,877	32,649
Shareholders’ equity:
Common shares, without par value; unlimited shares authorized; issued and outstanding: 75,370,977 (December 31, 2022 - 62,587,701) (note 10)	1,436,374	1,065,136
Additional paid-in capital	156,764	142,108
Accumulated deficit	(665,140)	(482,747)
Accumulated other comprehensive loss	(77)	(3,000)
Total shareholders' equity	927,921	721,497
Total liabilities and shareholders’ equity	964,798	754,146
Commitments and contingencies (note 12)