Condensed Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Current Assets
Cash and cash equivalents	$ 20,903	$ 94,746
Investments	64,822	22,287
Prepaid expenses and other current assets	7,050	5,337
Total current assets	92,775	122,370
Property and equipment, net	39,670	43,015
Operating lease right-of-use assets	36,481
Long-term investments		31,042
Deposits and other	3,149	3,630
Total assets	172,075	200,057
Current Liabilities
Accounts payable	1,698	3,352
Accrued expenses	9,399	11,555
Operating lease liabilities, current portion	3,434
Other current liabilities	39	1,992
Total current liabilities	14,570	16,899
Deferred rent		28,229
Operating lease liabilities, net of current portion	61,252
Total liabilities	75,822	45,128
Commitment and contingencies (Note 9)
Stockholders' equity
Additional paid-in capital	532,409	514,794
Accumulated other comprehensive loss	(581)	(102)
Accumulated deficit	(435,579)	(359,767)
Total stockholders' equity	96,253	154,929
Total liabilities and stockholders' equity	172,075	200,057
Class A common stock
Stockholders' equity
Common stock	3	3
Class B common stock
Stockholders' equity
Common stock	$ 1	$ 1