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Information with Respect to Class A Common Shares that were Surrendered or Repurchased (Detail) - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2025 | Jun. 30, 2024
Equity, Class of Treasury Stock [Line Items] |  |  |
Approximate Dollar Value of Shares that May Yet Be Purchased Under the Plans or Programs | $ 101,000,000.0 | $ 101,000,000.0 |
Class A Common Shares |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |
Total Number of Shares Purchased | 0 | 0 | 16,527
Average Price Paid Per Share |  |  | $ 32
June 1-30, 2024 | Employee | Class A Common Shares |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |
Total Number of Shares Purchased |  |  | 16,527
Average Price Paid Per Share |  |  | $ 32
Total Number of Shares Purchased as Part of Publicly Announced Plan or Program |  |  | 0
Approximate Dollar Value of Shares that May Yet Be Purchased Under the Plans or Programs |  |  | $ 101,004,000

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