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Stockholders' Equity - Additional Information (Details) $ / shares in Units, $ in Thousands | 1 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended | 26 Months Ended
--- | --- | --- | --- | --- | ---
Jun. 30, 2022 USD ($) class plan $ / shares shares | Dec. 31, 2021 USD ($) $ / shares shares | Apr. 30, 2021 shares | Feb. 28, 2021 shares | Jun. 30, 2020 shares | Nov. 30, 2019 shares | Sep. 30, 2019 | Jun. 30, 2022 USD ($) class plan $ / shares shares | Jun. 30, 2021 USD ($) | Jun. 30, 2022 USD ($) class plan $ / shares shares | Jun. 30, 2021 USD ($) shares | Dec. 31, 2021 USD ($) $ / shares shares | Dec. 31, 2021 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of common stock classes | class | 2 |  |  |  |  |  |  | 2 |  | 2 |  |  |
Number of equity incentive plan | plan | 2 |  |  |  |  |  |  | 2 |  | 2 |  |  |
Stock issuable upon the exercise of options outstanding (in shares) | 19,596,828 | 21,372,561 |  |  |  |  |  | 19,596,828 |  | 19,596,828 |  | 21,372,561 | 21,372,561
Options granted (in shares) |  |  |  |  |  |  |  |  |  | 0 | 0 |  |
Proceeds from exercise of stock options | $ |  |  |  |  |  |  |  |  |  | $ 6,451 | $ 6,162 |  |
Intrinsic value of options exercised | $ |  |  |  |  |  |  |  |  |  | 217,000 | 229,600 |  |
Aggregate fair value of options vested | $ |  |  |  |  |  |  |  |  |  | 12,700 | 14,500 |  |
Share-based payment arrangement, expense | $ |  |  |  |  |  |  |  | $ 82,399 | $ 34,515 | 149,283 | 63,376 |  |
Amounts withheld on behalf of employees for a future purchase | $ |  |  |  |  |  |  |  |  |  | 0 | $ 245 |  |
Employee stock options |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Total compensation cost related to unvested awards not yet recognized | $ | $ 20,000 | $ 31,600 |  |  |  |  |  | $ 20,000 |  | $ 20,000 |  | $ 31,600 | $ 31,600
Weighted average period over compensation cost related to unvested employee awards |  |  |  |  |  |  |  |  |  | 10 months 24 days |  | 1 year 3 months 18 days |
Early exercise of common stock (in shares) | 0 | 31,500 |  |  |  |  |  | 0 |  | 0 |  | 31,500 | 31,500
Unvested restricted stock in connection with acquisition |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock granted (in shares) | 191,809 | 98,593 | 245,761 | 117,538 | 96,210 | 244,445 |  |  |  |  |  |  |
Service based vesting period |  |  |  |  |  |  |  |  |  |  |  |  | 4 years
Restricted Stock Units, Restricted Stock Awards and Performance Stock Units |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average period over compensation cost related to unvested employee awards |  |  |  |  |  |  |  |  |  | 2 years 10 months 24 days |  | 3 years 1 month 6 days |
Common stock granted (in shares) |  |  |  |  |  |  |  |  |  | 3,119,713 |  |  |
Total compensation cost related to unvested awards not yet recognized | $ | $ 976,800 | $ 773,600 |  |  |  |  |  | $ 976,800 |  | $ 976,800 |  | $ 773,600 | $ 773,600
Employee Stock Purchase Plan |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based payment arrangement, expiration period |  |  |  |  |  |  | 27 months |  |  |  |  |  |
Percentage of purchase the shares at a price per share |  |  |  |  |  |  | 85.00% |  |  |  |  |  |
Share-based payment arrangement, expense | $ |  |  |  |  |  |  |  | $ 2,500 |  | 4,700 |  |  |
Amounts withheld on behalf of employees for a future purchase | $ |  |  |  |  |  |  |  |  |  | $ 4,700 |  |  |
Class A Common Stock |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of voting rights entitled to stockholders per share (in dollars per share) | $ / shares | $ 1 |  |  |  |  |  |  | $ 1 |  | $ 1 |  |  |
Common stock, authorized (in shares) | 2,000,000,000 | 2,000,000,000 |  |  |  |  |  | 2,000,000,000 |  | 2,000,000,000 |  | 2,000,000,000 | 2,000,000,000
Common stock, par value (in dollars per share) | $ / shares | $ 0.00001 | $ 0.00001 |  |  |  |  |  | $ 0.00001 |  | $ 0.00001 |  | $ 0.00001 | $ 0.00001
Common stock, issued (in shares) | 290,783,440 | 263,339,585 |  |  |  |  |  | 290,783,440 |  | 290,783,440 |  | 263,339,585 | 263,339,585
Common stock, outstanding (in shares) | 290,783,440 | 263,339,585 |  |  |  |  |  | 290,783,440 |  | 290,783,440 |  | 263,339,585 | 263,339,585
Stock issuable upon the exercise of options outstanding (in shares) | 29,266 | 31,671 |  |  |  |  |  | 29,266 |  | 29,266 |  | 31,671 | 31,671
Class A Common Stock | 2019 Equity Incentive Plan |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares available for grant (in shares) | 67,352,167 |  |  |  |  |  |  | 67,352,167 |  | 67,352,167 |  |  |
Class A Common Stock | Employee Stock Purchase Plan |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares available for grant (in shares) | 14,976,951 |  |  |  |  |  |  | 14,976,951 |  | 14,976,951 |  |  |
Issuance of common stock under the Employee Stock Purchase Plan (in shares) |  |  |  |  |  |  |  | 146,515 |  |  |  |  |
Class B Common Stock |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of voting rights entitled to stockholders per share (in dollars per share) | $ / shares | $ 10 |  |  |  |  |  |  | $ 10 |  | $ 10 |  |  |
Common stock, number of shares converted (in shares) |  |  |  |  |  |  |  | 6,284,309 |  | 24,393,510 |  |  |
Common stock, authorized (in shares) | 310,000,000 | 310,000,000 |  |  |  |  |  | 310,000,000 |  | 310,000,000 |  | 310,000,000 | 310,000,000
Common stock, par value (in dollars per share) | $ / shares | $ 0.00001 | $ 0.00001 |  |  |  |  |  | $ 0.00001 |  | $ 0.00001 |  | $ 0.00001 | $ 0.00001
Common stock, issued (in shares) | 25,632,342 | 50,025,852 |  |  |  |  |  | 25,632,342 |  | 25,632,342 |  | 50,025,852 | 50,025,852
Common stock, outstanding (in shares) | 25,632,342 | 50,025,852 |  |  |  |  |  | 25,632,342 |  | 25,632,342 |  | 50,025,852 | 50,025,852
Stock issuable upon the exercise of options outstanding (in shares) | 19,567,562 | 21,340,890 |  |  |  |  |  | 19,567,562 |  | 19,567,562 |  | 21,340,890 | 21,340,890

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