Condensed Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 41,506	$ 37,318
Short-term investments	485,616	386,639
Prepaid expenses and other current assets	10,713	8,524
Total current assets	537,835	432,481
Property and equipment, net	1,709	1,859
Operating lease right-of-use assets	6,698	6,993
Other long-term assets	7,666	7,602
Total assets	553,908	448,935
Current liabilities:
Accounts payable and accrued expenses	30,903	33,757
Current operating lease liabilities	1,363	1,506
Total current liabilities	32,266	35,263
Long-term debt, net	9,376	9,332
Long-term operating lease liabilities	6,231	6,362
Other long-term liabilities	951	705
Total liabilities	48,824	51,662
Stockholders'equity:
Preferred stock, $0.0001 par value; 10,000 shares authorized; no shares issued and outstanding
Common stock, $0.0001 par value; 200,000 shares authorized; 76,181 and 74,350 shares issued and outstanding as of March 31, 2024 and December 31, 2023, respectively	8	7
Additional paid-in capital	1,276,856	1,119,976
Accumulated other comprehensive loss	(816)	(1,271)
Accumulated deficit	(770,964)	(721,439)
Total stockholders'equity	505,084	397,273
Total liabilities and stockholders'equity	$ 553,908	$ 448,935