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Redeemable, Convertible Preferred Stock - Authorized, Issued and Outstanding Shares, Issue Price, and Carrying Value (Details) - USD ($) $ / shares in Units, $ in Thousands	Sep. 30, 2022	Dec. 31, 2021	Sep. 30, 2021	Dec. 31, 2020	Dec. 31, 2019
Temporary Equity [Line Items]
Shares authorized (in shares)	29,747,033	29,747,033		26,112,823
Shares issued (in shares)	29,521,810	29,521,810		25,729,542
Shares outstanding (in shares)	29,521,810	29,521,810	29,521,810	25,729,542	23,695,330
Carrying Amount	$ 480,631	$ 480,631	$ 480,631	$ 394,408	$ 347,938
Series A
Temporary Equity [Line Items]
Shares authorized (in shares)	4,666,503	4,666,503		4,666,503
Shares issued (in shares)	4,666,503	4,666,503		4,666,503
Shares outstanding (in shares)	4,666,503	4,666,503		4,666,503	4,666,503
Carrying Amount	$ 12,230	$ 12,230		$ 12,230	$ 12,230
Series A | Minimum
Temporary Equity [Line Items]
Issue price (in dollars per share)	$ 1.75	$ 1.75		$ 1.75
Series A | Maximum
Temporary Equity [Line Items]
Issue price (in dollars per share)	$ 3.94	$ 3.94		$ 3.94
Series B
Temporary Equity [Line Items]
Shares authorized (in shares)	1,733,370	1,733,370		1,733,370
Shares issued (in shares)	1,733,370	1,733,370		1,733,370
Shares outstanding (in shares)	1,733,370	1,733,370		1,733,370	1,733,370
Issue price (in dollars per share)	$ 10.38	$ 10.38		$ 10.38
Carrying Amount	$ 18,000	$ 18,000		$ 18,000	$ 18,000
Series C
Temporary Equity [Line Items]
Shares authorized (in shares)	4,254,733	4,254,733		4,254,733
Shares issued (in shares)	4,142,408	4,142,408		4,142,408
Shares outstanding (in shares)	4,142,408	4,142,408		4,142,408	4,142,408
Issue price (in dollars per share)	$ 14.69	$ 14.69		$ 14.69
Carrying Amount	$ 60,850	$ 60,850		$ 60,850	$ 60,850
Series D
Temporary Equity [Line Items]
Shares authorized (in shares)	10,274,260	10,274,260		10,274,260
Shares issued (in shares)	10,161,362	10,161,362		10,003,304
Shares outstanding (in shares)	10,161,362	10,161,362		10,003,304	10,003,304
Issue price (in dollars per share)	$ 19.93	$ 19.93		$ 19.93
Carrying Amount	$ 188,402	$ 188,402		$ 185,252	$ 185,252
Series E
Temporary Equity [Line Items]
Shares authorized (in shares)	5,183,957	5,183,957		5,183,957
Shares issued (in shares)	5,183,957	5,183,957		5,183,957
Shares outstanding (in shares)	5,183,957	5,183,957		5,183,957	3,149,745
Issue price (in dollars per share)	$ 22.86	$ 22.86		$ 22.86
Carrying Amount	$ 118,076	$ 118,076		$ 118,076	$ 71,606
Series F
Temporary Equity [Line Items]
Shares authorized (in shares)	3,634,210	3,634,210
Shares issued (in shares)	3,634,210	3,634,210
Shares outstanding (in shares)	3,634,210	3,634,210		0	0
Issue price (in dollars per share)	$ 22.86	$ 22.86
Carrying Amount	$ 83,073	$ 83,073		$ 0	$ 0

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-Publisher FASB
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-SubTopic 10
-Section S99
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The maximum number of securities classified as temporary equity that are permitted to be issued by an entity's charter and bylaws. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer.

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The number of securities classified as temporary equity that have been sold (or granted) to the entity's shareholders. Securities issued include securities outstanding and securities held in treasury. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer.

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