Investments - Held-to-maturity Security - Narrative (Details) - USD ($) |
6 Months Ended | 12 Months Ended | |
|---|---|---|---|
Jun. 30, 2025 |
Dec. 31, 2024 |
Jun. 30, 2024 |
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| Schedule Of Held To Maturity Securities [Line Items] | |||
| Investment, Type [Extensible Enumeration] | Deposit Asset Underlying10 Insurance Agreement [Member] | Deposit Asset Underlying10 Insurance Agreement [Member] | Deposit Asset Underlying10 Insurance Agreement [Member] |
| Held-to-maturity debt security estimated unrealized holding loss | $ (33,300,000) | ||
| Held-to-maturity debt security Credit losses | $ 0 | $ 0 | |
| LLC Note [Member] | |||
| Schedule Of Held To Maturity Securities [Line Items] | |||
| Debt instrument, maturity date | Dec. 31, 2030 | ||
| Debt instrument, interest rate, stated percentage | 4.50% | ||
| Surplus Note [Member] | |||
| Schedule Of Held To Maturity Securities [Line Items] | |||
| Debt instrument, maturity date | Dec. 31, 2030 | ||
| Debt instrument, interest rate, stated percentage | 4.50% |
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Date when the debt instrument is scheduled to be fully repaid, in YYYY-MM-DD format. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of expense (reversal of expense) for expected credit loss on investment in debt security measured at amortized cost (held-to-maturity). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of unrealized gain (loss) from transfer of investment in debt security measured at amortized cost (held-to-maturity), to investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale) and investment in debt security measured at fair value with change in fair value recognized in net income (trading). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Indicates type of investment. Includes, but is not limited to, common stock, preferred stock, convertible security, fixed income security, government security, option purchased, warrant, loan participation and assignment, commercial paper, bankers' acceptance, certificates of deposit, short-term security, repurchase agreement, and other investment company. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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