Liability for Unpaid Losses and Loss Adjustment Expenses - Additional Information (Detail) - USD ($) $ in Thousands |
3 Months Ended | |||
|---|---|---|---|---|
Mar. 31, 2025 |
Dec. 31, 2024 |
Mar. 31, 2024 |
Dec. 31, 2023 |
|
| Liability for Claims and Claims Adjustment Expense [Line Items] | ||||
| Liability for unpaid claims and claims adjustment expense, prior period increase (decrease) | $ 1,144 | |||
| Liability for unpaid claims and claims adjustment expense, net | 61,766 | $ 60,622 | $ 63,001 | $ 64,674 |
| Hurricane [Member] | ||||
| Liability for Claims and Claims Adjustment Expense [Line Items] | ||||
| Liability for unpaid claims and claims adjustment expense, business acquisitions | 3,201 | |||
| Liability for asbestos and environmental claims, net, incurred loss | $ 579 |