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Property and Casualty Insurance Reserves - Historical Claims Duration (Details) | Dec. 31, 2024
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Specialty Personal Automobile Insurance—Liability |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
Year 1 | 38.00%
Year 2 | 77.80%
Year 3 | 90.50%
Year 4 | 95.10%
Year 5 | 97.40%
Specialty Personal Automobile Insurance—Physical Damage |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
Year 1 | 93.00%
Year 2 | 100.00%
Year 3 | 100.00%
Year 4 | 100.00%
Year 5 | 100.00%
Commercial Automobile Insurance—Liability |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
Year 1 | 21.50%
Year 2 | 52.10%
Year 3 | 69.10%
Year 4 | 82.20%
Year 5 | 90.50%
Commercial Automobile Insurance—Physical Damage |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
Year 1 | 85.40%
Year 2 | 100.00%
Year 3 | 100.00%
Year 4 | 100.00%
Year 5 | 100.00%
Preferred Personal Automobile Insurance—Liability |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
Year 1 | 30.50%
Year 2 | 60.60%
Year 3 | 77.90%
Year 4 | 89.10%
Year 5 | 94.60%
Preferred Personal Automobile Insurance—Physical Damage |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
Year 1 | 97.40%
Year 2 | 100.00%
Year 3 | 100.00%
Year 4 | 100.00%
Year 5 | 100.00%
Homeowners [Member] |
Short-duration Insurance Contracts, Historical Claims Duration [Line Items] |
Year 1 | 67.00%
Year 2 | 92.40%
Year 3 | 96.60%
Year 4 | 98.30%
Year 5 | 99.30%

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- Definition Percentage of average annual payout, after reinsurance, in the fifth year after a claim is incurred, beginning with the earliest accident year disclosed for short-duration insurance contracts. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 9F -Publisher FASB -URI https://asc.fasb.org/1943274/2147480046/944-40-55-9F Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 4G -Publisher FASB -URI https://asc.fasb.org/1943274/2147480081/944-40-50-4G + Details
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- Definition Percentage of average annual payout, after reinsurance, in the first year after a claim is incurred, beginning with the earliest accident year disclosed for short-duration insurance contracts. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 9F -Publisher FASB -URI https://asc.fasb.org/1943274/2147480046/944-40-55-9F Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 4G -Publisher FASB -URI https://asc.fasb.org/1943274/2147480081/944-40-50-4G + Details
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