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v3.25.0.1

Subsequent Events - (Details) - USD ($) shares in Millions, $ in Millions | 2 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Feb. 27, 2025 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Jan. 31, 2025
Authorized Share Repurchase Program |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Number of shares repurchased (shares) |  | 0.3 | 0.0 | 12.9 |
Aggregate cost of shares repurchased |  | $ 23.5 | $ 0.0 | $ 585.8 |
Authorized Share Repurchase Program | Common shares |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Remaining share repurchase authorization |  | $ 996.8 |  |  |
Subsequent Event | Authorized Share Repurchase Program |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Number of shares repurchased (shares) | 2.0 |  |  |  |
Aggregate cost of shares repurchased | $ 180.0 |  |  |  |
Subsequent Event | Authorized Share Repurchase Program | Common shares |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Remaining share repurchase authorization | $ 817.0 |  |  |  |
Subsequent Event | Loss from Catastrophes | California Wildfires | Minimum |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Estimate of possible loss |  |  |  |  | $ 450.0
Estimated industry-wide loss |  |  |  |  | 35,000.0
Subsequent Event | Loss from Catastrophes | California Wildfires | Maximum |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Estimate of possible loss |  |  |  |  | 550.0
Estimated industry-wide loss |  |  |  |  | $ 45,000.0

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