Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Cash Flows From Operating Activities
Net loss	$ (42,346)	$ (21,006)
Adjustments to reconcile net loss to net cash used in operating activities:
Change of fair value of Sponsor Earn-Out liability	(16,400)
Stock-based compensation	15,947	3,130
Depreciation and amortization	1,580	1,298
Other	(371)
PPP note forgiveness		(840)
Changes in operating assets and liabilities:
Receivable from related party	5,943	(1,138)
Prepaid expenses and other assets	(3,401)	(1,068)
Accounts payable	(761)	617
Accrued expenses and other liabilities	2,002	1,203
Net cash used in operating activities	(37,807)	(17,804)
Cash Flows From Investing Activities
Purchases of property and equipment	(10,645)	(3,964)
Purchase of short-term investments		(150,810)
Maturities of short-term investments		13,101
Net cash used in investing activities	(10,645)	(141,673)
Cash Flows From Financing Activities
Proceeds from Business Combination and PIPE Financing, net of issuance costs	282,940
Proceeds from stock option exercises	260	20
Payment of deferred offering costs		(576)
Proceeds from issuance of Series D and D plus redeemable convertible preferred stock, net of issuance costs		187,897
Net cash provided by financing activities	283,200	187,341
Effect of exchange rates on cash	(639)	48
Net increase in cash, cash equivalents and restricted cash	234,109	27,912
Cash, cash equivalents and restricted cash at beginning of period	161,044	2,728
Cash, cash equivalents and restricted cash at end of period	395,153	30,640
Supplemental Non-Cash Information:
Conversion of Redeemable Convertible Preferred Stock to shares of Class A Common Stock	(269,941)
Release of accrued transaction costs related to Business Combination and PIPE Financing	6,174
Accounts payable and accrued expenses related to purchases of property and equipment	4,668	(118)
Lease liabilities arising from obtaining right-of-use assets	1,565
Liabilities of Ivanhoe acquired in the Business Combination	$ (387)
Deferred offering costs included in accounts payable and accrued expenses and other liabilities		$ 2,103