Stock-Based Compensation - Narrative (Details) - USD ($) $ in Millions	9 Months Ended
Sep. 30, 2024	Dec. 31, 2023
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
RSUs and RSAs outstanding (in shares)	13,829,241	26,886,533
Unrecognized stock-based compensation expense related to RSUs and RSAs	$ 328.1
Stock options outstanding (in shares)	18,658,940	29,795,909
Unrecognized stock-based compensation expense related to stock options	$ 119.9
Class A common stock
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
RSUs and RSAs outstanding (in shares)	13,193,757
Stock options outstanding (in shares)	14,503,023
Class B common stock
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
RSUs and RSAs outstanding (in shares)	635,484
Stock options outstanding (in shares)	4,155,917
RSUs and RSAs
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Unrecognized stock-based compensation expense, weighted-average period of recognition	1 year 6 months 18 days
RSUs and RSAs \| Minimum
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Vesting period for equity based payment awards	1 year
RSUs and RSAs \| Maximum
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Vesting period for equity based payment awards	4 years
Stock options
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Unrecognized stock-based compensation expense, weighted-average period of recognition	4 years 2 months 4 days
Stock options \| Share-Based Payment Arrangement, Tranche One
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Vesting period for equity based payment awards	1 year
Vesting percentage	25.00%
Stock options \| Share-Based Payment Arrangement, Tranche Two
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Vesting period for equity based payment awards	3 years
Stock options \| Minimum
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Vesting period for equity based payment awards	4 years
Stock options \| Maximum
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Vesting period for equity based payment awards	5 years

Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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