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Reinsurance - Additional Information (Details) $ in Millions |  |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended
--- | --- | --- | --- | --- | --- | ---
Apr. 01, 2024 USD ($) program layer | Jan. 19, 2024 | Jul. 01, 2023 USD ($) | Jan. 31, 2024 USD ($) | Aug. 31, 2023 USD ($) layer | Mar. 31, 2024 USD ($) placement | Dec. 31, 2023 USD ($)
Reinsurance Retention [Line Items] |  |  |  |  |  |  |
Term |  | 5 years |  |  |  |  |
Proceeds from collaborative agreement |  |  |  | $ 25.0 |  |  |
Proceeds from collaborative agreement, cash recoveries |  |  |  |  |  | $ 3.0 |
Other income |  |  |  |  |  | $ 8.7 |
Vesttoo | Homeowners of America Insurance Company |  |  |  |  |  |  |
Reinsurance Retention [Line Items] |  |  |  |  |  |  |
Additional premium payments |  |  |  |  |  |  | $ 20.0
Reinsurance, collateral received from trust |  |  | $ 47.6 |  |  |  |
Reinsurance, collateral, line of credit facility |  |  | 300.0 |  |  |  |
Provision for doubtful accounts |  |  |  |  |  |  | $ 36.0
Maximum | Vesttoo | Homeowners of America Insurance Company |  |  |  |  |  |  |
Reinsurance Retention [Line Items] |  |  |  |  |  |  |
Reinsurance coverage limit |  |  | $ 175.0 |  |  |  |
Reinsurance Quota Share Program |  |  |  |  |  |  |
Reinsurance Retention [Line Items] |  |  |  |  |  |  |
Number of placements for reinsurance programs | placement |  |  |  |  |  | 3 |
Reinsured risk percentage | 27.50% |  |  |  |  |  |
Number of programs | program | 1 |  |  |  |  |  |
Reinsurance Quota Share Program | Texas |  |  |  |  |  |  |
Reinsurance Retention [Line Items] |  |  |  |  |  |  |
Reinsured risk percentage |  |  |  |  |  | 42.00% |
Reinsurance Quota Share Program | South Carolina |  |  |  |  |  |  |
Reinsurance Retention [Line Items] |  |  |  |  |  |  |
Reinsured risk percentage |  |  |  |  |  | 7.00% |
Reinsurance Quota Share Program | Core program |  |  |  |  |  |  |
Reinsurance Retention [Line Items] |  |  |  |  |  |  |
Reinsured risk percentage |  |  |  |  |  | 9.50% |
Reinsurance Quota Share Program | Core locations outside of Texas |  |  |  |  |  |  |
Reinsurance Retention [Line Items] |  |  |  |  |  |  |
Reinsured risk percentage |  |  |  |  |  | 8.00% |
Reinsurance Quota Share Program | Combined program |  |  |  |  |  |  |
Reinsurance Retention [Line Items] |  |  |  |  |  |  |
Reinsured risk percentage |  |  |  |  |  | 5.00% |
Reinsurance Property Catastrophe Treaties |  |  |  |  |  |  |
Reinsurance Retention [Line Items] |  |  |  |  |  |  |
Number of retention layers for reinsurance policy | layer | 5 |  |  |  | 4 |  |
Excess amount retained | $ 465.0 |  |  |  | $ 440.0 |  |
Reinsurance Property Catastrophe Treaties | Minimum |  |  |  |  |  |  |
Reinsurance Retention [Line Items] |  |  |  |  |  |  |
Amount retained | 45.0 |  |  |  | 20.0 |  |
Reinsurance Property Catastrophe Treaties | Maximum |  |  |  |  |  |  |
Reinsurance Retention [Line Items] |  |  |  |  |  |  |
Amount retained | $ 75.0 |  |  |  | $ 80.0 |  |

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