Gain (Loss) On Commutation Of Reinsurance Contracts

No definition available.

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- Definition

Percentage Of Deferred Reinsurance Ceding Commissions

+ References

No definition available.

+ Details

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- Definition

Reinsurance, Payments To Settle Contract

+ References

No definition available.

+ Details

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- Definition

Reinsurance, Per Risk Limit, Amount

+ References

No definition available.

+ Details

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- Definition

Ratio of insurance contracts that are subject to reinsurance participation to all contracts in force.

+ 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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- 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/2009/role/commonPracticeRef
-Topic 944
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-URI https://asc.fasb.org/1943274/2147479838/944-20-50-1

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
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+ Details

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Period Type:	duration

- Definition

Amount, after effects of reinsurance, of increase (decrease) in the liability 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

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Data Type:	xbrli:monetaryItemType
Balance Type:	na
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- Definition

Amount per event of risk undertaken originally by insurer that is not ceded to reinsurer.

+ References

+ Details

Name:	us-gaap_ReinsuranceRetentionAmountRetainedPerEvent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount per event of risk ceded to reinsurer in excess of risk undertaken originally by insurer that is not ceded to reinsurer.

+ References

+ Details

Name:	us-gaap_ReinsuranceRetentionExcessRetentionAmountReinsuredPerEvent
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount per policy of risk ceded to reinsurer in excess of risk undertaken originally by insurer that is not ceded to reinsurer.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Percentage of risk ceded to reinsurer in excess of risk undertaken originally by insurer that is not ceded to reinsurer.

+ References

+ Details

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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount, after effects of reinsurance, of expense for claims incurred in the current reporting period and related claims settlement costs.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 40
-Name Accounting Standards Codification
-Section 50
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+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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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

+ Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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Unpaid Loss and Loss Adjustment Expense - Narrative (Details) - USD ($)			1 Months Ended	9 Months Ended
	Jul. 01, 2026	Jul. 01, 2025	Mar. 31, 2025	Sep. 30, 2026	Sep. 30, 2025
Effects of Reinsurance [Line Items]
Favorable development on net loss and LAE reserves				$ (20,400,000)	$ (18,900,000)
Current accident year incurred loss and LAE				495,100,000	271,400,000
Percent of contracts subject to participation through reinsurance	18.00%
Reinsurance, excess retention, amount reinsured, per event	$ 100,000,000	$ 10,000,000
Reinsurance, per risk limit, amount		750,000
Initial limit for each loss occurrence	40,000,000
Reinsurance Contract [Axis]: 2023 Whole Account Quota Share Reinsurance Contracts
Effects of Reinsurance [Line Items]
Reinsurance, payments to settle contract				3,800,000
Gain on commutation of reinsurance contracts				$ 3,500,000
Reinsurance Contract [Axis]: Excess of Loss Reinsurance Contract
Effects of Reinsurance [Line Items]
Reinsurance, excess retention, amount reinsured, per event		80,000,000
Initial limit for each loss occurrence	$ 50,000,000	50,000,000,000,000
Reinsurance Contract [Axis]: Property Per Risk Excess of Loss Reinsurance
Effects of Reinsurance [Line Items]
Reinsurance, excess retention, amount reinsured, per policy		$ 2,250,000
Reinsurance, excess retention, percentage		100.00%
Reinsurance Contract [Axis]: Reinsurance Program
Effects of Reinsurance [Line Items]
Percent of contracts subject to participation through reinsurance		20.00%
MIC Quota Share Reinsurance Contract
Effects of Reinsurance [Line Items]
Quota share reinsurance cession percentage	40.00%	35.00%
LIC Quota Share Reinsurance Contract
Effects of Reinsurance [Line Items]
Quota share reinsurance cession percentage	25.00%	15.00%
Maximum \| Reinsurance Contract [Axis]: Property Per Risk Excess of Loss Reinsurance
Effects of Reinsurance [Line Items]
Reinsurance, excess retention, amount reinsured, per policy		$ 750,000
California Wildfires
Effects of Reinsurance [Line Items]
Current accident year incurred loss and LAE					$ 19,900,000
Reduction in net unpaid losses			$ (4,200,000)