Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 57,703	$ 52,214
Marketable securities	226,608	293,584
Prepaid expenses and other current assets	6,181	5,601
Total current assets	290,492	351,399
Property and equipment, net	14,607	15,311
Restricted cash	1,708	1,708
Other assets	1,173	2,379
Operating lease right-of-use assets	31,596	34,086
Total assets	339,576	404,883
Current liabilities:
Accounts payable	6,933	5,414
Accrued expenses and other current liabilities	8,138	11,001
Operating lease liabilities	7,670	5,970
Deferred revenue	33,896	32,820
Total current liabilities	56,637	55,205
Operating lease liabilities, net of current portion	40,273	45,537
Deferred revenue, net of current portion	292,016	304,000
Other liabilities	0	29
Total liabilities	388,926	404,771
Commitments and contingencies (Note 10)
Stockholders’ equity (deficit):
Preferred stock, $0.0001 par value; 25,000,000 shares authorized at June 30, 2023 and December 31, 2022; no shares issued and outstanding at June 30, 2023 and December 31, 2022	0	0
Common stock, $0.0001 par value; 175,000,000 shares authorized at June 30, 2023 and December 31, 2022; 41,852,438 shares issued and outstanding at June 30, 2023 and 41,803,436 shares issued and outstanding at December 31, 2022	4	4
Additional paid-in capital	386,478	377,232
Accumulated other comprehensive loss	(2,719)	(3,986)
Accumulated deficit	(433,113)	(373,138)
Total stockholders’ equity (deficit)	(49,350)	112
Total liabilities and stockholders’ equity (deficit)	$ 339,576	$ 404,883