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Summary of Business and Significant Accounting Policies (Details) $ / shares in Units, $ in Millions | 1 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2020 USD ($) $ / shares shares | Nov. 30, 2020 shares | Oct. 31, 2021 shares | Apr. 30, 2021 shares
Subsidiary, Sale of Stock [Line Items] |  |  |  |
Reverse stock split ratio, common stock |  | 0.1667 |  |
Deferred offering costs reclassified into stockholders' equity as a reduction of the IPO proceeds | $ | $ 7.2 |  |  |
IPO |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |
Net proceeds received | $ | 694.6 |  |  |
Private Placement |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |
Net proceeds received | $ | $ 150.0 |  |  |
Class A Common Stock |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |
Common stock, shares authorized (in shares) |  | 390,000,000 | 1,000,000,000 | 1,000,000,000
Class A Common Stock | IPO |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |
Sale of stock, number of shares issued (in shares) | 17,825,000 |  |  |
Sale of stock, shares issued, price per share (in dollars per share) | $ / shares | $ 42.00 |  |  |
Class A Common Stock | Over-Allotment Option |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |
Sale of stock, number of shares issued (in shares) | 2,325,000 |  |  |
Class A Common Stock | Private Placement |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |
Sale of stock, shares issued, price per share (in dollars per share) | $ / shares | $ 42.00 |  |  |
Class A Common Stock | Private Placement | Spring Creek Capital LLC |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |
Sale of stock, number of shares issued (in shares) | 2,380,952 |  |  |
Class A Common Stock | Private Placement | Microsoft Corporation |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |
Sale of stock, number of shares issued (in shares) | 1,190,476 |  |  |
Class A-1 Common Stock |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |
Shares authorized (in shares) |  | 6,666,667 |  |
Conversion of stock, converted (in shares) | 6,666,665 |  |  |
Conversion ratio | 1 |  |  |
Class B Common Stock |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |
Common stock, shares authorized (in shares) |  | 21,000,000 | 3,500,000 | 3,500,000
Preferred Stock |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |
Shares authorized (in shares) |  | 233,107,379 |  |
Redeemable Convertible Preferred Stock, Excluding Series A Preferred Stock |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |
Conversion of stock, converted (in shares) | 33,628,776 |  |  |
Conversion ratio | 1 |  |  |
Series A Preferred Stock |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |
Conversion of stock, converted (in shares) | 3,499,992 |  |  |
Conversion ratio | 1 |  |  |

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