Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 68,069	$ 232,813
Short-term investments	367,995	167,261
Accounts receivable, net	4,537	2,495
Related party receivables	829	1,283
Other receivables	1,012	366
Inventory	5,916	4,145
Prepaid expenses and other current assets	2,113	3,336
Total current assets	450,471	411,699
Long-term investments	4,873	93,186
Operating lease right-of-use assets	27,465	20,142
Property and equipment, net	16,084	13,087
Restricted cash	524	524
Other assets	795	501
Total assets	500,212	539,139
Current liabilities:
Accounts payable	3,975	3,789
Accrued expenses	7,821	8,394
Deferred revenue	325	376
Operating lease liabilities, current	1,314	864
Other current liabilities	181	0
Total current liabilities	13,616	13,423
Operating lease liabilities, net of current portion	28,509	22,459
Other noncurrent liabilities	319	341
Total liabilities	42,444	36,223
Commitments and contingencies (Note 8)
Stockholders’ equity:
Preferred stock, $0.00001 par value; 5,000,000 shares authorized as of September 30, 2022 and December 31, 2021; zero shares issued and outstanding as of September 30, 2022 and December 31, 2021	0	0
Additional paid-in capital	657,431	629,981
Accumulated other comprehensive loss	(2,693)	(536)
Accumulated deficit	(196,971)	(126,530)
Total stockholders’ equity	457,768	502,916
Total liabilities and stockholders’ equity	500,212	539,139
Class A common stock
Stockholders’ equity:
Common stock	1	1
Class B common stock
Stockholders’ equity:
Common stock	$ 0	$ 0