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Reinsurance and Policy Benefits and Losses, Claims and Loss Expenses Payable - (Narratives) (Details) - USD ($) $ in Thousands | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | ---
Mar. 31, 2025 | Mar. 31, 2024 | Mar. 31, 2023 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Reinsurance Premiums For Insurance Companies By Product Segment [Line Items] |  |  |  |  |  |  |
Reinsurance recoverable | $ 34,566 | $ 37,864 |  |  |  |  |
Repwest [Member] |  |  |  |  |  |  |
Reinsurance Premiums For Insurance Companies By Product Segment [Line Items] |  |  |  |  |  |  |
Reinsurance recoverable | 32,400 | 36,200 | $ 41,300 |  |  |  |
Increase (decrease) in reinsurance recoverable | $ 5,600 | $ 20,700 | $ 7,300 |  |  |  |
Property and Casualty Insurance [Member] |  |  |  |  |  |  |
Reinsurance Premiums For Insurance Companies By Product Segment [Line Items] |  |  |  |  |  |  |
Reinsurance recoverable |  |  |  | $ 32,369 | $ 36,188 | $ 41,329 | $ 47,394

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- Definition The increase (decrease) during the reporting period in the amount of benefits the ceding insurer expects to recover on insurance policies ceded to other insurance entities as of the balance sheet date for all guaranteed benefit types. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (a) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28 + Details
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