CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Cash flows from operating activities:
Net loss	$ (132,154)	$ (99,266)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	328	208
Accretion and amortization on investments, net	(8,335)	(9)
Amortization of debt issuance costs/debt discounts	742	1,103
Stock-based compensation for services by non-employees	650	140
Stock-based compensation for employees and directors	14,110	5,813
Amortization of right-of-use assets	464	431
Changes in assets and liabilities:
Current and noncurrent assets	(13,694)	(24,506)
Current and noncurrent liabilities	11,084	23,888
Net cash used in operating activities	(126,805)	(92,198)
Cash flows from investing activities:
Purchases of property and equipment	(766)	(291)
Purchases of marketable securities	(459,727)	(97,336)
Proceeds from maturities of marketable securities	232,602	140,706
Net cash (used in) provided by investing activities	(227,891)	43,079
Cash flows from financing activities:
Proceeds from issuances of common stock from equity plans	9,492	1,962
Proceeds from issuance of common stock from public offering and pre-funded warrant, net of paid issuance costs	213,337	69,916
Proceeds from exercise of warrants	105,912	3,638
Debt discount and issuance costs for debt financing		(175)
Net cash provided by financing activities	328,741	75,341
Effect of exchange rates on cash, cash equivalents and restricted cash	(9)	10
Net increase in cash, cash equivalents and restricted cash	(25,964)	26,232
Cash, cash equivalents and restricted cash at the beginning of the period	57,209	35,235
Cash, cash equivalents and restricted cash at the end of the period	$ 31,245	$ 61,467