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v3.25.1

Stock-Based Compensation - Narrative (Details) $ in Thousands | 1 Months Ended | 3 Months Ended
--- | --- | ---
Mar. 31, 2025 USD ($) shares | Jan. 31, 2023 shares | Jan. 31, 2022 shares | Aug. 31, 2021 shares | Jun. 30, 2021 performanceCondition shares | Mar. 31, 2025 USD ($) shares | Mar. 31, 2024 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Total stock-based compensation expense | $ |  |  |  |  |  | $ 12,333 | $ 14,048
2021 Plan |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Annual increase in shares authorized, percent |  |  |  | 5.00% |  |  |
Number of additional shares authorized |  | 6,036,000 |  |  |  |  |
The Plans | Series A common stock |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Options approved for grant (in shares) | 29,677,000 |  |  |  |  | 29,677,000 |
The Founders Grant |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Total stock-based compensation expense | $ |  |  |  |  |  | $ 2,800 | 7,300
Stock options or restricted stock units (RSUs) | 2021 Incentive Award Plan |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Award vesting period |  |  |  | 4 years |  |  |
Employee Stock Purchase Plan |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Options approved for grant (in shares) | 6,326,000 |  |  |  |  | 6,326,000 |
Number of additional shares authorized |  |  | 1,207,000 | 16,615,000 |  |  |
Restricted stock units (RSUs) |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Units vested (in shares) |  |  |  |  |  | 616,000 |
Granted (in shares) |  |  |  |  |  | 1,218,000 |
Vested and not yet released (in shares) |  |  |  |  |  | 21,000 |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grant Date Fair Value | $ | $ 5,700 |  |  |  |  | $ 5,700 |
Restricted stock units (RSUs) | 2021 Plan |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Award vesting period | 3 years |  |  |  |  |  |
Total stock-based compensation expense | $ |  |  |  |  |  | $ 4,100 | 5,000
Restricted stock units (RSUs) | 2021 Plan | Series A common stock |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Granted (in shares) | 236,000 |  |  |  |  |  |
Restricted stock units (RSUs) | The Plans |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Non-vested award, cost not yet recognized, period for recognition |  |  |  |  |  | 1 year 6 months |
Cost not yet recognized, outstanding awards | $ | $ 51,000 |  |  |  |  | $ 51,000 |
Restricted stock units (RSUs) | The Founders Grant |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Award vesting period |  |  |  |  | 5 years |  |
Granted (in shares) |  |  |  |  | 1,885,000 |  |
Grant date fair value | $ |  |  |  |  |  | $ 66,900 |
Vested and not yet released (in shares) |  |  |  |  |  | 899,000 |
Performance stock units (PSUs) |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Award expiration period |  |  |  |  | 10 years |  |
Number of performance conditions | performanceCondition |  |  |  |  | 2 |  |
Terms of award, stock price hurdle period |  |  |  |  | 10 years |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grant Date Fair Value | $ | $ 9,600 |  |  |  |  | $ 9,600 |
Performance stock units (PSUs) | Monte Carlo simulation |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Grant date fair value | $ |  |  |  |  |  | $ 128,800 |
Performance stock units (PSUs) | Series B common stock |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Number of shares receivable per share based payments award (in shares) |  |  |  |  | 1 |  |
Performance stock units (PSUs) | 2021 Plan |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Award vesting period | 3 years |  |  |  |  |  |
Performance stock units (PSUs) | 2021 Plan | Series A common stock |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Granted (in shares) | 236,000 |  |  |  |  |  |
Performance stock units (PSUs) | The Plans |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Non-vested award, cost not yet recognized, period for recognition |  |  |  |  |  | 1 year 4 months 24 days |
Cost not yet recognized, outstanding awards | $ | $ 9,400 |  |  |  |  | $ 9,400 |
Performance stock units (PSUs) | The Founders Grant |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Granted (in shares) |  |  |  |  | 4,398,000 |  |
Equity Settled Bonuses |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Total stock-based compensation expense | $ |  |  |  |  |  | 4,500 |
Charitable Donor Advised Funds |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Total stock-based compensation expense | $ |  |  |  |  |  | $ 700 | $ 700

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