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Reinsurance - Excess of Loss Reinsurance (Details) - USD ($) $ in Thousands |  |  |  |  |  |  |  |  |  |  |  | 3 Months Ended | 12 Months Ended
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Jan. 29, 2026 | Jan. 01, 2026 | Dec. 01, 2025 | Jun. 01, 2025 | Mar. 01, 2025 | Apr. 01, 2024 | Oct. 23, 2023 | Apr. 01, 2023 | Apr. 26, 2022 | Apr. 01, 2022 | Aug. 03, 2021 | Mar. 31, 2026 | Dec. 31, 2025
2026 Traditional XOL |  |  |  |  |  |  |  |  |  |  |  |  |
Effects of Reinsurance [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Legal Maturity |  | 10 years |  |  |  |  |  |  |  |  |  |  |
Initial and Remaining Excess of Loss Reinsurance Coverage |  | $ 184,000 |  |  |  |  |  |  |  |  |  |  |
2025 Traditional XOL |  |  |  |  |  |  |  |  |  |  |  |  |
Effects of Reinsurance [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Legal Maturity |  |  |  | 10 years |  |  |  |  |  |  |  |  |
Initial First Layer Retention |  |  |  | $ 95,966 |  |  |  |  |  |  |  |  |
Remaining First Layer Retention |  |  |  |  |  |  |  |  |  |  |  | $ 95,966 | $ 95,966
Initial and Remaining Excess of Loss Reinsurance Coverage |  |  |  | $ 151,851 |  |  |  |  |  |  |  | 151,851 | 151,851
2024 Traditional XOL |  |  |  |  |  |  |  |  |  |  |  |  |
Effects of Reinsurance [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Legal Maturity |  |  |  |  |  | 10 years |  |  |  |  |  |  |
Initial First Layer Retention |  |  |  |  |  | $ 125,016 |  |  |  |  |  |  |
Remaining First Layer Retention |  |  |  |  |  |  |  |  |  |  |  | 123,596 | 124,458
Initial and Remaining Excess of Loss Reinsurance Coverage |  |  |  |  |  | $ 187,220 |  |  |  |  |  | 178,796 | 187,220
2023 Traditional XOL |  |  |  |  |  |  |  |  |  |  |  |  |
Effects of Reinsurance [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Legal Maturity |  |  |  |  |  |  |  | 10 years |  |  |  |  |
Initial First Layer Retention |  |  |  |  |  |  |  | $ 70,578 |  |  |  |  |
Remaining First Layer Retention |  |  |  |  |  |  |  |  |  |  |  | 68,299 | 69,060
Initial and Remaining Excess of Loss Reinsurance Coverage |  |  |  |  |  |  |  | $ 96,942 |  |  |  | 59,066 | 64,217
2022 Traditional XOL |  |  |  |  |  |  |  |  |  |  |  |  |
Effects of Reinsurance [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Legal Maturity |  |  |  |  |  |  |  |  |  | 10 years |  |  |
Initial First Layer Retention |  |  |  |  |  |  |  |  |  | $ 82,523 |  |  |
Remaining First Layer Retention |  |  |  |  |  |  |  |  |  |  |  | 76,952 | 78,023
Initial and Remaining Excess of Loss Reinsurance Coverage |  |  |  |  |  |  |  |  |  | $ 142,642 |  | 97,362 | 100,274
2021 Traditional XOL |  |  |  |  |  |  |  |  |  |  |  |  |
Effects of Reinsurance [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Legal Maturity |  |  | 10 years |  |  |  |  |  |  |  |  |  |
Initial First Layer Retention |  |  | $ 142,291 |  |  |  |  |  |  |  |  |  |
Remaining First Layer Retention |  |  |  |  |  |  |  |  |  |  |  | 142,291 | 142,291
Initial and Remaining Excess of Loss Reinsurance Coverage |  |  | $ 250,000 |  |  |  |  |  |  |  |  | 250,000 | 250,000
2020 Traditional XOL |  |  |  |  |  |  |  |  |  |  |  |  |
Effects of Reinsurance [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Legal Maturity |  |  |  |  | 10 years |  |  |  |  |  |  |  |
Initial First Layer Retention |  |  |  |  | $ 68,343 |  |  |  |  |  |  |  |
Remaining First Layer Retention |  |  |  |  |  |  |  |  |  |  |  | 68,288 | 68,288
Initial and Remaining Excess of Loss Reinsurance Coverage |  |  |  |  | $ 250,592 |  |  |  |  |  |  | $ 250,592 | 250,592
Excess of Loss Reinsurance Transactions, Home Re Transactions |  |  |  |  |  |  |  |  |  |  |  |  |
Effects of Reinsurance [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Percent of reinsurance coverage threshold, option to terminate (as a percent) |  |  |  |  |  |  |  |  |  |  |  | 10.00% |
Home Re 2026-1, Ltd. |  |  |  |  |  |  |  |  |  |  |  |  |
Effects of Reinsurance [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Legal Maturity | 10 years |  |  |  |  |  |  |  |  |  |  |  |
Initial First Layer Retention | $ 231,769 |  |  |  |  |  |  |  |  |  |  |  |
Remaining First Layer Retention |  |  |  |  |  |  |  |  |  |  |  | $ 231,750 |
Initial and Remaining Excess of Loss Reinsurance Coverage | $ 323,504 |  |  |  |  |  |  |  |  |  |  | $ 322,204 |
Funding Percentage | 100.00% |  |  |  |  |  |  |  |  |  |  | 100.00% |
Home Re 2023-1, Ltd. |  |  |  |  |  |  |  |  |  |  |  |  |
Effects of Reinsurance [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Legal Maturity |  |  |  |  |  |  | 10 years |  |  |  |  |  |
Initial First Layer Retention |  |  |  |  |  |  | $ 272,961 |  |  |  |  |  |
Remaining First Layer Retention |  |  |  |  |  |  |  |  |  |  |  | $ 263,855 | 266,371
Initial and Remaining Excess of Loss Reinsurance Coverage |  |  |  |  |  |  | $ 330,277 |  |  |  |  | $ 214,444 | 231,708
Funding Percentage |  |  |  |  |  |  | 97.00% |  |  |  |  | 95.00% |
Home Re 2022-1, Ltd. |  |  |  |  |  |  |  |  |  |  |  |  |
Effects of Reinsurance [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Legal Maturity |  |  |  |  |  |  |  |  | 12 years 6 months |  |  |  |
Initial First Layer Retention |  |  |  |  |  |  |  |  | $ 325,589 |  |  |  |
Remaining First Layer Retention |  |  |  |  |  |  |  |  |  |  |  | $ 317,741 | 318,906
Initial and Remaining Excess of Loss Reinsurance Coverage |  |  |  |  |  |  |  |  | $ 473,575 |  |  | $ 188,763 | 207,641
Funding Percentage |  |  |  |  |  |  |  |  | 100.00% |  |  | 100.00% |
Home Re 2021-2, Ltd. |  |  |  |  |  |  |  |  |  |  |  |  |
Effects of Reinsurance [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Legal Maturity |  |  |  |  |  |  |  |  |  |  | 12 years 6 months |  |
Initial First Layer Retention |  |  |  |  |  |  |  |  |  |  | $ 190,159 |  |
Remaining First Layer Retention |  |  |  |  |  |  |  |  |  |  |  | $ 186,537 | 187,030
Initial and Remaining Excess of Loss Reinsurance Coverage |  |  |  |  |  |  |  |  |  |  | $ 398,429 | $ 68,267 | $ 84,376
Funding Percentage |  |  |  |  |  |  |  |  |  |  | 100.00% | 100.00% |

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