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Share-based Compensation - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2024 | Mar. 31, 2023 | Dec. 31, 2023
Class A |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Granted (in shares) | 878,091 | 868,315 |
Increase (decrease) in accrued employee compensation expense | $ 4.9 | $ 5.9 |
RSUs |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Expense recognized | 10.2 | $ 10.1 |
Unrecognized share-based compensation expense | $ 67.0 |  | $ 55.2
Weighted average period for compensation expense expected to be recognized | 1 year 4 months 24 days | 10 months 24 days |
2015 Management Incentive Plan |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Granted (in shares) | 0 | 0 |
2015 Management Incentive Plan | Stock options |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Vesting period | 4 years |  |
Expiration period | 10 years |  |
2015 Management Incentive Plan | RSUs and RSAs | Maximum |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Vesting period | 4 years |  |

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