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Reinsurance - General Information (Details) $ in Thousands | 1 Months Ended | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Jun. 30, 2017 USD ($) | Mar. 31, 2021 USD ($) | Dec. 31, 2022 USD ($) Counterparty | Dec. 31, 2021 USD ($) Counterparty | Dec. 31, 2020 USD ($) Counterparty | Jun. 30, 2022 USD ($)
Reinsurance Retention Policy |  |  |  |  |  |
Retention amount |  |  | $ 10,700 | $ 10,900 |  |
Number of Company's largest reinsurers | Counterparty |  |  | 3 | 3 | 3 |
Reinsurance premiums ceded |  |  | $ 378,806 | $ 200,172 | $ 146,388 |
Percentage of reinsurance premiums ceded on total premium |  |  | 23.90% | 20.90% | 22.40% |
Percentage of reinsurance recoverable on paid and unpaid losses on total balance |  |  | 31.50% | 19.30% |  |
Ceded unearned premiums |  |  | $ 204,084 | $ 58,315 |  |
Ceded written premiums |  |  | 524,575 | 223,443 | $ 155,102 |
Catastrophe bond, face value |  |  |  |  |  | $ 275,000
Catastrophe |  |  |  |  |  |
Reinsurance Retention Policy |  |  |  |  |  |
Retention amount |  |  | 12,500 |  |  |
Ceded written premiums |  |  | 28,300 | 11,700 | 5,000 |
Catastrophe bond, issuance costs |  | $ 400,000 |  |  |  |
Earthquake |  |  |  |  |  |
Reinsurance Retention Policy |  |  |  |  |  |
XOL reinsurance, protection |  |  | 2,110,000 |  |  |
Hawaii Hurricane |  |  |  |  |  |
Reinsurance Retention Policy |  |  |  |  |  |
XOL reinsurance, protection |  |  | 1,010,000 |  |  |
U.S. Hurricane |  |  |  |  |  |
Reinsurance Retention Policy |  |  |  |  |  |
XOL reinsurance, protection |  |  | 250,000 |  |  |
Minimum | Hurricane and earthquake |  |  |  |  |  |
Reinsurance Retention Policy |  |  |  |  |  |
Retention amount |  |  | 5,000 |  |  |
Maximum | Hurricane and earthquake |  |  |  |  |  |
Reinsurance Retention Policy |  |  |  |  |  |
Retention amount |  |  | 15,000 |  |  |
Torrey Pines Re Ltd. ("TPRe") | Catastrophe |  |  |  |  |  |
Reinsurance Retention Policy |  |  |  |  |  |
Notes issued for reinsurance coverage | $ 166,000 |  |  |  |  |
First largest insurer |  |  |  |  |  |
Reinsurance Retention Policy |  |  |  |  |  |
Reinsurance premiums ceded |  |  | 24,700 | 24,700 | 9,700 |
Reinsurance recoverables on paid and unpaid losses |  |  | 60,600 | 21,900 |  |
Second largest insurer |  |  |  |  |  |
Reinsurance Retention Policy |  |  |  |  |  |
Reinsurance premiums ceded |  |  | 22,900 | 11,700 | 8,600 |
Reinsurance recoverables on paid and unpaid losses |  |  | 53,900 | 10,500 |  |
Third largest insurer |  |  |  |  |  |
Reinsurance Retention Policy |  |  |  |  |  |
Reinsurance premiums ceded |  |  | 18,400 | 10,400 | $ 6,000 |
Reinsurance recoverables on paid and unpaid losses |  |  | $ 50,600 | $ 9,200 |  |

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