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Stock-Based Compensation - Narrative (Details) - USD ($) | 1 Months Ended | 6 Months Ended | 7 Months Ended |  |
--- | --- | --- | --- | --- | ---
Sep. 30, 2020 | Jan. 31, 2018 | Oct. 31, 2021 | Dec. 10, 2020 | May 01, 2021 | Nov. 27, 2020
Chief Executive Officer (CEO) |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Notes receivable |  | $ 24,500,000 |  |  |  |
Proceeds from notes receivable payment | $ 26,000,000 |  |  |  |  |
Chief Executive Officer (CEO) | Notes Receivable |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Interest income | $ 0 |  |  |  |  |
Stock options |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Unrecognized compensation cost |  |  | $ 147,100,000 |  |  |
Unrecognized compensation cost, weighted-average recognition period |  |  | 3 years 4 months 24 days |  |  |
Vesting period |  |  | 5 years |  |  |
RSUs |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Unrecognized compensation cost, weighted-average recognition period |  |  | 3 years 9 months 18 days |  |  |
Granted, non-option (in shares) |  |  | 6,080,000 | 0 |  |
Vesting period |  |  | 5 years |  |  |
Unrecognized stock-based compensation expense |  |  | $ 332,800,000 |  |  |
2020 Incentive Plan | Stock options |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Expiration period |  |  | 10 years |  |  |
2020 Employee Stock Purchase Plan | Employee Stock |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Percentage of employee earnings participation (up to) |  |  |  |  |  | 15.00%
Common Class A and Common Class B | 2020 Incentive Plan |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Automatic increase to shares reserved for future issuance, percent of total shares outstanding as of April 30, 2021 |  |  |  |  | 5.00% |
Common Class A and Common Class B | 2020 Employee Stock Purchase Plan | Employee Stock |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Automatic increase to shares reserved for future issuance, percent of total shares outstanding as of April 30, 2021 |  |  |  |  | 1.00% |
Class A Common Stock | 2020 Employee Stock Purchase Plan | Employee Stock |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Shares reserved for future issuance (in shares) |  |  |  |  |  | 3,000,000
Series F Preferred Stock | Chief Executive Officer (CEO) |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Stock issued during period (in shares) |  | 1,251,921 |  |  |  |

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