Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 310,355	$ 234,207
Short-term marketable securities	449,839	315,803
Prepaid expenses and other current assets	15,816	9,952
Total current assets	776,010	559,962
Long-term marketable securities	88,133	19,283
Property and equipment, net	16	18
Right of use asset	884	1,008
Total assets	865,043	580,271
Current liabilities:
Accounts payable	14,568	7,038
Accrued expenses and other current liabilities	16,606	12,090
Total current liabilities	31,174	19,128
Loan payable, noncurrent	34,959	24,964
Warrant liability	164	54
Operating lease liability, noncurrent	679	819
Total liabilities	66,976	44,965
Commitments and contingencies (Note 12)
Stockholders' equity:
Common stock, $0.0001 par value, 150,000,000 shares authorized as of June 30, 2024 and December 31, 2023; 69,205,668 and 55,754,445 shares issued and outstanding as of June 30, 2024 and December 31, 2023, respectively	7	6
Additional paid-in capital	1,481,748	1,109,126
Accumulated other comprehensive (loss) income	(261)	270
Accumulated deficit	(683,427)	(574,096)
Total stockholders' equity	798,067	535,306
Total liabilities and stockholders' equity	$ 865,043	$ 580,271