Reserves for Unpaid Losses and Loss Adjustment Expenses Narrative (Details) - USD ($) $ in Thousands |
6 Months Ended | |
|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
|
| Claims Development [Line Items] | ||
| Adverse (Favorable) development on prior year loss reserves | $ (30,095) | $ (17,947) |
| Current year | 480,430 | 398,058 |
| Catastrophe losses [Member] | ||
| Claims Development [Line Items] | ||
| Current year | 26,300 | |
| Short Duration Insurance Contract Accident Years 2021 through 2022 | ||
| Claims Development [Line Items] | ||
| Adverse (Favorable) development on prior year loss reserves | $ (35,800) | |
| Short Duration Insurance Contract Accident Years 2021 through 2023 | ||
| Claims Development [Line Items] | ||
| Adverse (Favorable) development on prior year loss reserves | $ (30,700) | |