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Redeemable Convertible Preferred Stock and Redeemable Convertible A-1 Common Stock (Details) $ in Millions | 1 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2020 USD ($) shares | Oct. 31, 2021 shares | Jul. 31, 2021 shares | Apr. 30, 2021 shares | Oct. 31, 2020 shares | Jul. 31, 2020 shares | Apr. 30, 2020 shares
Redeemable Convertible Preferred Stock, Excluding Series A Preferred Stock |  |  |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |  |  |
Conversion of stock, converted (in shares) | 33,628,776 |  |  |  |  |  |
Conversion ratio | 1 |  |  |  |  |  |
Series A Preferred Stock |  |  |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |  |  |
Conversion of stock, converted (in shares) | 3,499,992 |  |  |  |  |  |
Conversion ratio | 1 |  |  |  |  |  |
Redeemable Convertible Preferred Stock |  |  |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |  |  |
Carrying value reclassified into stockholders' equity | $ | $ 399.8 |  |  |  |  |  |
Shares issued (in shares) |  | 0 |  |  |  |  |
Shares outstanding (in shares) |  | 0 | 0 | 0 | 37,129,000 | 37,129,000 | 37,129,000
Redeemable Convertible A-1 Common Stock |  |  |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |  |  |
Conversion of stock, converted (in shares) | 6,666,665 |  |  |  |  |  |
Conversion ratio | 1 |  |  |  |  |  |
Carrying value reclassified into stockholders' equity | $ | $ 18.8 |  |  |  |  |  |
Shares issued (in shares) |  | 0 |  |  |  |  |
Shares outstanding (in shares) |  | 0 | 0 | 0 | 6,667,000 | 6,667,000 | 6,667,000

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- Definition The number of shares converted in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=123431023&loc=d3e4313-108586 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=123431023&loc=d3e4304-108586 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=123431023&loc=d3e4332-108586 + Details
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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 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. + 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(27)(b)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition The number of securities classified as temporary equity that have been issued and are held by the entity's shareholders. Securities outstanding equals securities issued minus 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. + 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(27)(b)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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