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Loss And Loss Adjustment Expense Reserves - Narrative (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Unusual or Infrequent Item, or Both [Line Items] |  |  |
Prior year claims and claims adjustment expense | $ 24,787 | $ (35,948) | $ 47,281
Liability for catastrophe claims, carrying amount | 277,000 | 239,000 | 102,000
Catastrophe |  |  |
Unusual or Infrequent Item, or Both [Line Items] |  |  |
Adjustments for prior year claims | 9,000 | (8,000) | 1,000
Liability for catastrophe claims, carrying amount | 268,000 | $ 247,000 | $ 101,000
Property insurance product line, automobile |  |  |
Unusual or Infrequent Item, or Both [Line Items] |  |  |
Adjustments for prior year claims | 13,000 |  |
Property insurance product line, homeowners' |  |  |
Unusual or Infrequent Item, or Both [Line Items] |  |  |
Adjustments for prior year claims | (5,000) |  |
Property insurance product line, commercial property |  |  |
Unusual or Infrequent Item, or Both [Line Items] |  |  |
Adjustments for prior year claims | 15,000 |  |
Other Short-duration Insurance Product Line |  |  |
Unusual or Infrequent Item, or Both [Line Items] |  |  |
Adjustments for prior year claims | $ 2,000 |  |

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- Definition The amount of estimated liability as of the balance sheet date for the specific conflagration, earthquake, windstorm, explosion, or similar event. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 5.W.Q2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479583/944-40-S99-1 + Details
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- Definition Sum of adjustments to the estimated reserve for unpaid claims and claims adjustment expense. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480081/944-40-50-3 + Details
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- Definition Amount, after effects of reinsurance, of expense (reversal of expense) for claims incurred in prior reporting periods and related claims settlement costs. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 7 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480046/944-40-55-7 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480081/944-40-50-3 + Details
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