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v3.26.1

Unpaid Loss and Loss Adjustment Expense - Additional Information (Details) - USD ($) |  |  | 1 Months Ended | 6 Months Ended
--- | --- | --- | --- | ---
Jul. 01, 2026 | Jul. 01, 2025 | Mar. 31, 2025 | Jun. 30, 2026 | Jun. 30, 2025
Effects of Reinsurance [Line Items] |  |  |  |  |
Favorable development on net loss and LAE reserves |  |  |  | $ (16,400,000) | $ (12,600,000)
Current accident year incurred loss and LAE |  |  |  | $ 303,700,000 | 175,500,000
Reinsurance, excess retention, amount reinsured, per event |  | $ 10,000,000 |  |  |
Reinsurance, per risk limit, amount |  | 750,000 |  |  |
Reinsurance Contract [Axis]: Excess of Loss Reinsurance Contract |  |  |  |  |
Effects of Reinsurance [Line Items] |  |  |  |  |
Reinsurance, excess retention, amount reinsured, per event |  | 80,000,000 |  |  |
Initial limit for each loss occurrence |  | 50,000,000,000,000 |  |  |
Reinsurance Contract [Axis]: Property Per Risk Excess of Loss Reinsurance |  |  |  |  |
Effects of Reinsurance [Line Items] |  |  |  |  |
Reinsurance, excess retention, amount reinsured, per policy |  | $ 2,250,000 |  |  |
Reinsurance, excess retention, percentage |  | 100.00% |  |  |
Reinsurance Contract [Axis]: Reinsurance Program |  |  |  |  |
Effects of Reinsurance [Line Items] |  |  |  |  |
Percent of contracts subject to participation through reinsurance |  | 20.00% |  |  |
Subsequent event |  |  |  |  |
Effects of Reinsurance [Line Items] |  |  |  |  |
Percent of contracts subject to participation through reinsurance | 18.00% |  |  |  |
Reinsurance, excess retention, amount reinsured, per event | $ 100,000,000 |  |  |  |
Initial limit for each loss occurrence | 40,000,000 |  |  |  |
Subsequent event | Reinsurance Contract [Axis]: Excess of Loss Reinsurance Contract |  |  |  |  |
Effects of Reinsurance [Line Items] |  |  |  |  |
Initial limit for each loss occurrence | $ 50,000,000 |  |  |  |
MIC Quota Share Reinsurance Contract |  |  |  |  |
Effects of Reinsurance [Line Items] |  |  |  |  |
Quota share reinsurance cession percentage |  | 35.00% |  |  |
MIC Quota Share Reinsurance Contract | Subsequent event |  |  |  |  |
Effects of Reinsurance [Line Items] |  |  |  |  |
Quota share reinsurance cession percentage | 40.00% |  |  |  |
LIC Quota Share Reinsurance Contract |  |  |  |  |
Effects of Reinsurance [Line Items] |  |  |  |  |
Quota share reinsurance cession percentage |  | 15.00% |  |  |
LIC Quota Share Reinsurance Contract | Subsequent event |  |  |  |  |
Effects of Reinsurance [Line Items] |  |  |  |  |
Quota share reinsurance cession percentage | 25.00% |  |  |  |
Maximum | Reinsurance Contract [Axis]: Property Per Risk Excess of Loss Reinsurance |  |  |  |  |
Effects of Reinsurance [Line Items] |  |  |  |  |
Reinsurance, excess retention, amount reinsured, per policy |  | $ 750,000 |  |  |
California Wildfires |  |  |  |  |
Effects of Reinsurance [Line Items] |  |  |  |  |
Current accident year incurred loss and LAE |  |  |  |  | $ 16,900,000
Reduction in net unpaid losses |  |  | $ (4,200,000) |  |

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