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Incentive Plans - Summary of Impact of Share-Based Incentive Plans on Compensation and Benefits Expense (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Share-based incentive awards: |  |  |  |
Share-based incentive awards | $ 72,749 | $ 75,696 | $ 126,186 | $ 143,887
RSUs [Member] |  |  |  |
Share-based incentive awards: |  |  |  |
Share-based incentive awards | 34,292 | 36,102 | 60,951 | 70,907
PRSUs [Member] |  |  |  |
Share-based incentive awards: |  |  |  |
Share-based incentive awards | 644 | 155 | 889 | 5,714
Restricted Stock [Member] |  |  |  |
Share-based incentive awards: |  |  |  |
Share-based incentive awards | 7,841 | 5,699 | 12,777 | 11,766
Profits Interest Participation Rights [Member] |  |  |  |
Share-based incentive awards: |  |  |  |
Share-based incentive awards | 28,244 | 32,109 | 49,692 | 53,682
DSUs [Member] |  |  |  |
Share-based incentive awards: |  |  |  |
Share-based incentive awards | $ 1,728 | $ 1,631 | $ 1,877 | $ 1,818

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