Allowance for Credit Losses- Reinsurance Recoverable, Credit Quality Indicator (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Ceded Credit Risk [Line Items] | ||
| Reinsurance Recoverables, Gross, Amortized Cost | $ 22,700 | $ 20,900 |
| Reinsurer concentration risk | Reinsurance recoverable including reinsurance premium paid | A- and above | ||
| Ceded Credit Risk [Line Items] | ||
| Reinsurance Recoverables, Gross, Amortized Cost | $ 837,807 | |
| Percent of Total | 97.40% | |
| Reinsurer concentration risk | Reinsurance recoverable including reinsurance premium paid | B++ to B+ | ||
| Ceded Credit Risk [Line Items] | ||
| Reinsurance Recoverables, Gross, Amortized Cost | $ 6,021 | |
| Percent of Total | 0.70% | |
| Reinsurer concentration risk | Reinsurance recoverable including reinsurance premium paid | Not rated | ||
| Ceded Credit Risk [Line Items] | ||
| Reinsurance Recoverables, Gross, Amortized Cost | $ 16,343 | |
| Percent of Total | 1.90% |