Share-Based Compensation - Narrative (Details) - USD ($) $ / shares in Thousands, $ in Millions	6 Months Ended
Jun. 30, 2022	Jun. 30, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant-date fair value of stock options vested	$ 1.6	$ 1.6
Aggregate intrinsic value of stock options exercised	83.3	$ 349.2
Unrecognized share-based compensation expense	$ 1,221.4
Weighted-average recognition period for unrecognized share-based compensation expense	3 years 1 month 6 days
Grant-date fair value of stock options granted	$ 11,790
Stock options granted (in shares)	8,553,000	0
2009 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for issuance (in shares)	0
2019 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of outstanding shares, additional reserve	5.00%
2019 Plan \| Class A
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for issuance (in shares)	132,432,216
Stock Options \| 2009 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration period	10 years
Stock Options \| 2019 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration period	10 years
RSUs \| 2009 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration period	7 years

Common Stock, Additional Shares Reserved For Future Issuance, Percentage Of Outstanding Shares

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Aggregate number of common shares reserved for future issuance.

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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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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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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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Gross number of share options (or share units) granted during the period.

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.

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