Unpaid Loss and Loss Adjustment Expense - Historical Claims Duration (Details)	Dec. 31, 2022
Home and renters
Short-duration Insurance Contracts, Historical Claims Duration [Line Items]
Average annual percentage payout in year 1	80.00%
Average annual percentage payout in year 2	15.00%
Average annual percentage payout in year 3	5.00%
Pet
Short-duration Insurance Contracts, Historical Claims Duration [Line Items]
Average annual percentage payout in year 1	88.00%
Average annual percentage payout in year 2	11.00%
Average annual percentage payout in year 3	1.00%
Car
Short-duration Insurance Contracts, Historical Claims Duration [Line Items]
Average annual percentage payout in year 1	52.00%
Average annual percentage payout in year 2	22.00%
Average annual percentage payout in year 3	26.00%

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 40
-Section 50
-Paragraph 4G
-URI https://asc.fasb.org/extlink&oid=116884468&loc=SL65671329-158438

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- Definition

Percentage of average annual payout, after reinsurance, in the third year after a claim is incurred, beginning with the earliest accident year disclosed for short-duration insurance contracts.

+ References

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- Definition

Percentage of average annual payout, after reinsurance, in the second year after a claim is incurred, beginning with the earliest accident year disclosed for short-duration insurance contracts.

+ References

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