Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 174,561	$ 128,885
Short-term marketable securities	34,523	151,827
Accounts receivable	0	30,000
Prepaid expenses and other current assets	4,973	8,507
Total current assets	214,057	319,219
Property and equipment, net	3,831	3,985
Operating lease right-of-use assets	7,694	10,475
Other assets, noncurrent	478	661
Total assets	226,060	334,340
Current liabilities:
Accounts payable	7,319	13,951
Accrued expenses	21,898	43,184
Deferred revenue	28,147	30,610
Operating lease liabilities	3,252	2,798
Short-term debt	2,083	0
Other current liabilities	938	990
Total current liabilities	63,637	91,533
Operating lease liabilities, noncurrent	5,149	8,575
Long-term debt, net	23,148	24,929
Deferred revenue, noncurrent	97,167	117,043
Other liabilities, noncurrent	55	203
Total liabilities	189,156	242,283
Commitments (Note 15)
Stockholders' equity
Preferred stock, $0.0001 par value; 25,000,000 shares authorized; 0 shares issued and outstanding at December 31, 2023 and December 31, 2022, respectively	0	0
Common stock, $0.0001 par value; 350,000,000 shares authorized; 120,711,745 and 105,144,864 shares issued and outstanding at December 31, 2023 and December 31, 2022, respectively	12	11
Additional paid-in capital	863,242	746,889
Accumulated other comprehensive income (loss)	11	(152)
Accumulated deficit	(826,361)	(654,691)
Total stockholders’ equity	36,904	92,057
Total liabilities and stockholders’ equity	$ 226,060	$ 334,340
Common stock, shares authorized (in shares)	350,000,000	350,000,000