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Reinsurance - Schedule of External Quota Share Agreements (Details) - Quota Share Agreement - External Third-Party - AmCoastal - Florida	9 Months Ended
	Sep. 30, 2025
Reinsurance Contract [Axis]: 06/01/2023 - 06/01/2024
Ceded Credit Risk [Line Items]
Cession Rate	40.00%
Reinsurance Contract [Axis]: 06/01/2024 - 06/01/2026
Ceded Credit Risk [Line Items]
Cession Rate	20.00%

X

- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 825
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477351/944-825-50-1B

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 825
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477351/944-825-50-1B

+ Details

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- Definition

Percentage of risk undertaken originally by insurer ceded to reinsurer.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 944
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479838/944-20-50-3

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