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Reinsurance - Summary of Premium Received and Capital at Risk (Details) - Shoreline Re | 9 Months Ended
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Sep. 30, 2025 USD ($)
All Other Perils Catastrophe Excess of Loss Agreement | Reinsurance Contract [Axis]: 01/01/2024 - 01/01/2025 |
Ceded Credit Risk [Line Items] |
Capital at Risk | $ 4,500,000
All Other Perils Catastrophe Excess of Loss Agreement | Reinsurance Contract [Axis]: 01/01/2025 - 12/31/2025 |
Ceded Credit Risk [Line Items] |
Premium Collected | 1,296,000
Capital at Risk | 2,304,000
Excess Per Risk Agreement | Reinsurance Contract [Axis]: 02/01/2024 - 02/01/2025 |
Ceded Credit Risk [Line Items] |
Premium Collected | 1,867,000
Capital at Risk | $ 633,000
Quota Share Agreement |
Ceded Credit Risk [Line Items] |
Cession Rate | 45.00%
Quota Share Agreement | Reinsurance Contract [Axis]: 06/01/2024 - 06/01/2026 |
Ceded Credit Risk [Line Items] |
Cession Rate | 30.00%
Capital at Risk | $ 4,200,000
Quota Share Agreement | Reinsurance Contract [Axis]: 06/01/2025 - 06/01/2026 |
Ceded Credit Risk [Line Items] |
Cession Rate | 45.00%
Capital at Risk | $ 33,346,000

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- Definition Reinsurance premium received. + References No definition available. + Details
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- 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 + Details
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- Details
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