Condensed Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Current Assets
Cash and cash equivalents	$ 26,446	$ 94,746
Investments	75,286	22,287
Prepaid expenses and other current assets	7,907	5,337
Total current assets	109,639	122,370
Property and equipment, net	40,801	43,015
Operating lease right-of-use assets	36,893
Long-term investments		31,042
Deposits and other	3,497	3,630
Total assets	190,830	200,057
Current Liabilities
Accounts payable	2,041	3,352
Accrued expenses	7,885	11,555
Operating lease liabilities, current portion	3,327
Other current liabilities	216	1,992
Total current liabilities	13,469	16,899
Deferred rent		28,229
Operating lease liabilities, net of current portion	62,158
Total liabilities	75,627	45,128
Commitment and contingencies (Note 9)
Stockholders' equity
Additional paid-in capital	528,380	514,794
Accumulated other comprehensive loss	(661)	(102)
Accumulated deficit	(412,520)	(359,767)
Total stockholders' equity	115,203	154,929
Total liabilities and stockholders' equity	190,830	200,057
Class A common stock
Stockholders' equity
Common stock	3	3
Class B common stock
Stockholders' equity
Common stock	$ 1	$ 1