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Summary of Significant Accounting Policies - Going Concern (Details) - USD ($) $ in Thousands	9 Months Ended		12 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021	Dec. 31, 2020
Accounting Policies [Abstract]
Cash and cash equivalents	$ 50,370		$ 128,318	$ 60,495
Accumulated deficit	(434,863)		(379,889)	(333,200)
Net cash used in operating activities	(71,336)	$ (26,718)	(42,591)	(39,271)
Net income (loss)	$ (54,974)	$ (30,591)	$ (46,689)	$ (37,713)

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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