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Reinsurance - Schedule of the Inception Date, Covered Production Period, Contractual and Optional Termination Dates, Current Cession Rate, Ceding Commission and Profit Commission for Each Outstanding QSR Transaction (Details) - Third-party Reinsurers	9 Months Ended
	Sep. 30, 2025
Reinsurance Policy, Type [Axis]: 2018 QSR Transaction
Ceded Credit Risk [Line Items]
Ceding Commission	20.00%
Profit Commission	0.61
Reinsurance Policy, Type [Axis]: 2018 QSR Transaction, Period 1
Ceded Credit Risk [Line Items]
Ceding percentage	21.00%
Reinsurance Policy, Type [Axis]: 2018 QSR Transaction, Period 2
Ceded Credit Risk [Line Items]
Ceding percentage	17.00%
Reinsurance Policy, Type [Axis]: 2020 QSR Transaction
Ceded Credit Risk [Line Items]
Ceding percentage	21.00%
Ceding Commission	36.00%
Profit Commission	0.50
Reinsurance Policy, Type [Axis]: 2021 QSR Transaction
Ceded Credit Risk [Line Items]
Ceding percentage	20.00%
Ceding Commission	35.00%
Profit Commission	0.54
Reinsurance Policy, Type [Axis]: 2022 QSR Transaction
Ceded Credit Risk [Line Items]
Ceding percentage	20.00%
Ceding Commission	20.00%
Profit Commission	0.62
Reinsurance Policy, Type [Axis]: 2022 Seasoned QSR Transaction
Ceded Credit Risk [Line Items]
Ceding percentage	95.00%
Ceding Commission	35.00%
Profit Commission	0.55
Reinsurance Policy, Type [Axis]: 2023 QSR Transaction
Ceded Credit Risk [Line Items]
Ceding percentage	20.00%
Ceding Commission	20.00%
Profit Commission	0.62
Reinsurance Policy, Type [Axis]: 2024 QSR Transaction
Ceded Credit Risk [Line Items]
Ceding percentage	20.00%
Ceding Commission	20.00%
Profit Commission	0.56
Reinsurance Policy, Type [Axis]: 2025 QSR Transaction
Ceded Credit Risk [Line Items]
Ceding percentage	20.00%
Ceding Commission	20.00%
Profit Commission	0.62
Reinsurance Policy, Type [Axis]: 2026 QSR Transactions
Ceded Credit Risk [Line Items]
Ceding percentage	20.00%
Reinsurance Policy, Type [Axis]: 2027 QSR Transactions
Ceded Credit Risk [Line Items]
Ceding percentage	12.00%

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- Definition

Ceded Credit Risk, Commission Earned, Percentage

+ References

No definition available.

+ Details

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- Definition

Ceded Credit Risk, Profit Commission, Earned, Percentage

+ References

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- Definition

Premiums Earned, Percent Of Risk

+ References

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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

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