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Equity Incentive Plans - Additional Information (Details) $ / shares in Units, $ in Thousands |  | 3 Months Ended | 6 Months Ended | 49 Months Ended |
--- | --- | --- | --- | --- | ---
Nov. 18, 2020 shares | Dec. 31, 2024 USD ($) vestingCondition shares | Dec. 31, 2023 USD ($) | Dec. 31, 2024 USD ($) vestingCondition $ / shares shares | Dec. 31, 2023 USD ($) | Dec. 31, 2024 USD ($) vestingCondition shares | Jun. 30, 2024 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Maximum number of common stock available for issuance (in shares) |  | 98,645,791 |  | 98,645,791 |  | 98,645,791 | 91,114,872
Weighted-average fair value of employee options granted (in USD per share) | $ / shares |  |  |  | $ 31.74 |  |  |
Right to purchase shares (in shares) |  |  |  | 677,433 |  |  |
Total stock-based compensation in operating expenses | $ |  | $ 86,098 | $ 90,164 | $ 180,331 | $ 202,523 |  |
Stock options, including early exercise of options |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Maximum number of common stock available for issuance (in shares) |  | 47,446,210 |  | 47,446,210 |  | 47,446,210 | 47,622,117
Vesting period |  |  |  | 4 years |  |  |
Non-vested stock options, unrecognized compensation cost | $ |  | $ 49,400 |  | $ 49,400 |  | $ 49,400 |
Weighted-average compensation expense recognition period |  |  |  | 2 years 6 months |  |  |
Stock options, including early exercise of options | Tranche One |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Vesting period |  |  |  | 12 months |  |  |
Vesting rights percentage |  |  |  | 25.00% |  |  |
Stock options, including early exercise of options | Tranche Two |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Vesting period |  |  |  | 3 years |  |  |
Performance Based Stock Options [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Non-vested stock options, unrecognized compensation cost | $ |  | 23,600 |  | $ 23,600 |  | $ 23,600 |
Weighted-average compensation expense recognition period |  |  |  | 1 year |  |  |
Right to purchase shares (in shares) |  |  |  | 12,500,000 |  |  |
Total stock-based compensation in operating expenses | $ |  | $ 12,400 | $ 19,500 | $ 24,700 | $ 39,100 |  |
Restricted stock units |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Weighted-average compensation expense recognition period |  |  |  | 1 year 9 months 18 days |  |  |
Number of vesting conditions | vestingCondition |  | 2 |  | 2 |  | 2 |
Non-vested RSUs, unrecognized compensation cost | $ |  | $ 573,800 |  | $ 573,800 |  | $ 573,800 |
Employee stock purchase plan shares |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Purchase period | 6 months |  |  |  |  |  |
Minimum | Stock options, including early exercise of options |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Expiration period prior to IPO |  |  |  | 7 years |  |  |
Expiration period |  |  |  | 3 months |  |  |
Minimum | Restricted stock units |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Vesting period |  |  |  | 1 year |  |  |
Maximum | Stock options, including early exercise of options |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Expiration period prior to IPO |  |  |  | 10 years |  |  |
Expiration period |  |  |  | 10 years |  |  |
Maximum | Restricted stock units |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Vesting period |  |  |  | 4 years |  |  |
Class A common stock |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Number of common stock available for issuance (in shares) |  | 51,199,581 |  | 51,199,581 |  | 51,199,581 | 43,492,755
2012 Stock Plan | Class A common stock |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Maximum number of common stock available for issuance (in shares) |  | 176,604,160 |  | 176,604,160 |  | 176,604,160 |
2020 Employee Stock Purchase Plan |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Share purchase price discount percent | 85.00% |  |  |  |  |  |
2020 Employee Stock Purchase Plan | Class A common stock |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Number of common stock available for issuance (in shares) | 16,100,000 |  |  |  |  |  |
Number of common stock issued (in shares) |  |  |  |  |  | 1,900,000 |

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