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Redeemable Convertible Preferred Stock - Schedule of Temporary Equity by Stock (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Aug. 31, 2020	Dec. 31, 2019
Temporary Equity [Line Items]
Shares Authorized (in shares)	0	26,983,984
Shares Issued (in shares)	0	25,402,402
Shares Outstanding (in shares)	0	25,402,402		20,998,000
Carrying Value	$ 0	$ 243,854		$ 173,068
Series A
Temporary Equity [Line Items]
Shares Authorized (in shares)		1,243,223
Shares Issued (in shares)		1,104,728
Shares Outstanding (in shares)		1,104,728
Carrying Value		$ 2,781
Series B
Temporary Equity [Line Items]
Shares Authorized (in shares)		1,841,805
Shares Issued (in shares)		1,543,804
Shares Outstanding (in shares)		1,543,804
Carrying Value		$ 5,404
Series C
Temporary Equity [Line Items]
Shares Authorized (in shares)		1,564,851
Shares Issued (in shares)		1,564,851
Shares Outstanding (in shares)		1,564,851
Carrying Value		$ 7,073
Series D
Temporary Equity [Line Items]
Shares Authorized (in shares)		8,245,295
Shares Issued (in shares)		7,547,542
Shares Outstanding (in shares)		7,547,542
Carrying Value		$ 36,879
Series E
Temporary Equity [Line Items]
Shares Authorized (in shares)		8,825,653
Shares Issued (in shares)		8,414,496
Shares Outstanding (in shares)		8,414,496
Carrying Value		$ 115,229
Series F
Temporary Equity [Line Items]
Shares Authorized (in shares)		5,263,157
Shares Issued (in shares)		5,226,981	5,226,969
Shares Outstanding (in shares)		5,226,981
Carrying Value		$ 76,488

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- Definition

Carrying amount, attributable to parent, of an entity's issued and outstanding stock which is not included within permanent equity. 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. Includes stock with a put option held by an ESOP and stock redeemable by a holder only in the event of a change in control of the issuer.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1A
-Subparagraph (SX 210.13-01(a)(4)(i))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756

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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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