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Preferred Stock - Narrative (Details) $ / shares in Units, $ in Thousands | 1 Months Ended | 6 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Jul. 31, 2021 $ / shares shares | Jul. 31, 2021 USD ($) $ / shares shares | Jul. 31, 2020 USD ($) shares | Jul. 01, 2021 shares | Apr. 30, 2021 shares | Jan. 31, 2021 $ / shares shares | Apr. 30, 2020 shares | Jan. 31, 2020 shares
Temporary Equity [Line Items] |  |  |  |  |  |  |  |
Redeemable convertible preferred stock, shares outstanding (in shares) | 0 | 0 | 144,929,131 |  | 167,058,113 | 167,058,113 | 144,929,131 | 113,523,948
Issuance of Series E Preferred Stock, net of issuance costs (in shares) |  |  | 31,405,183 |  |  |  |  |
Proceeds from issuance of Series E redeemable convertible preferred stock, net of issuance costs | $ |  | $ 0 | $ 152,539 |  |  |  |  |
Preferred stock, shares authorized (in shares) | 50,000,000 | 50,000,000 |  |  |  | 0 |  |
Preferred stock, par or stated value per share (in USD per share) | $ / shares | $ 0.0001 | $ 0.0001 |  |  |  | $ 0.0001 |  |
Preferred stock, shares outstanding (in shares) | 0 | 0 |  |  |  | 0 |  |
Redeemable convertible preferred stock |  |  |  |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |  |  |  |
Redeemable convertible preferred stock, shares outstanding (in shares) |  |  |  | 167,058,113 |  |  |  |
Preferred stock, convertible, conversion ratio | 1 | 1 |  |  |  |  |  |
Class B Common Stock |  |  |  |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |  |  |  |
Conversion of redeemable convertible preferred stock to common stock upon initial public offering (in shares) | 169,787,200 |  |  |  |  |  |  |
Conversion of redeemable convertible preferred stock to common stock upon initial public offering, not on a one-for-one basis (in shares) | 34,134,270 |  |  |  |  |  |  |
Series E |  |  |  |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |  |  |  |
Redeemable convertible preferred stock, shares outstanding (in shares) |  |  |  | 31,405,183 |  | 31,405,183 |  |
Issuance of Series E Preferred Stock, net of issuance costs (in shares) |  |  | 31,405,183 |  |  |  |  |
Original issuance price per share (in USD per share) | $ / shares |  |  |  |  |  | $ 4.8617 |  |
Proceeds from issuance of Series E redeemable convertible preferred stock, net of issuance costs | $ |  |  | $ 152,500 |  |  |  |  |
Temporary equity, issuance costs | $ |  |  | $ 100 |  |  |  |  |

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- Definition Number of common shares issuable upon conversion for each share of preferred stock to be converted. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644 + Details
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- Definition Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644 + Details
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- Definition The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition The per share liquidation preference (or restrictions) of stock classified as temporary equity that has a preference in involuntary liquidation considerably in excess of the par or stated value of the shares. The liquidation preference is the difference between the preference in liquidation and the par or stated values of the share. 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. + References No definition available. + Details
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