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v3.25.2

Segment Information - Additional Information (Detail) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 USD ($) | Jun. 30, 2024 USD ($) | Mar. 31, 2024 USD ($) | Jun. 30, 2025 USD ($) Segment HoldingCompany | Jun. 30, 2024 USD ($)
Segment Reporting Information [Line Items] |  |  |  |  |
Revenues | $ 110,520,000 | $ 108,687,000 |  | $ 219,171,000 | $ 220,978,000
Number of reportable segments | Segment |  |  |  | 3 |
Number of holding companies in which reportable segments are structured | HoldingCompany |  |  |  | 2 |
Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration] |  |  |  | srt:ChiefExecutiveOfficerMember |
Segment Reporting, CODM, Profit (Loss) Measure, How Used, Description |  |  |  | The Company analyzes the operating performance of each segment using the segment’s income (loss). Segment income (loss) does not equate to “net income (loss)” as determined in accordance with U.S. GAAP but is the measure of segment profit or loss used by the CODM to evaluate segment performance and allocate resources, and consistent with authoritative guidance, is the measure of segment performance presented below. |
Agency and Insurance Services [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Expenses |  |  | $ 0 |  |

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