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Reinsurance (Details) - USD ($) $ in Thousands | 6 Months Ended | 7 Months Ended | 12 Months Ended | 42 Months Ended
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Dec. 31, 2025 | Jun. 30, 2025 | Dec. 31, 2024 | Jun. 30, 2024 | Dec. 31, 2023 | Jun. 30, 2023 | Apr. 30, 2025 | Dec. 31, 2025 | Jun. 30, 2025 | Dec. 31, 2024 | Jun. 30, 2024 | Dec. 31, 2023 | Jun. 30, 2023 | Jun. 30, 2025
Reinsurance Retention [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reinstatement of premium protection, amount |  |  |  |  |  |  |  |  |  |  | $ 50,000 |  | $ 12,500 |
Excess of catastrophe coverage |  |  |  |  |  |  |  |  |  |  | 10,000 |  | $ 10,000 |
Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reinsurance Retention [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reinsurance retention |  |  |  |  |  |  |  |  |  | $ 530 |  | $ 500 |  |
Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reinsurance Retention [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reinsurance retention |  |  |  |  |  |  |  |  |  | $ 730 |  | $ 700 |  |
Catastrophe Reinsurance: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reinsurance Retention [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Initial loss subject to personal lines quota share treaty |  |  | $ 10,000 | $ 10,000 | $ 10,000 | $ 10,000 |  |  |  |  |  |  |  |
Risk retained per catastrophe occurrence |  |  | 4,750 | 9,500 | 8,750 | 8,750 |  |  |  |  |  |  |  |
Catastrophe loss coverage in excess of quota share coverage |  |  | $ 275,000 | $ 315,000 | $ 315,000 | $ 335,000 |  |  |  |  |  |  |  |
Reinstatement premium protection |  |  | Yes | Yes | Yes | Yes |  |  |  |  |  |  |  |
Ceded loss percentage |  |  |  |  |  |  |  |  |  | 22.00% |  | 17.50% |  |
Total ceded loss percentage |  |  |  |  |  |  |  |  |  | 27.00% |  | 30.00% |  |
Personal Lines |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reinsurance Retention [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percent ceded |  |  | 27.00% | 27.00% | 30.00% | 30.00% |  |  |  |  |  |  |  |
Risk retained on initial $1,000,000 of losses |  |  | $ 730 | $ 730 | $ 700 | $ 700 |  |  |  |  |  |  |  |
Losses per occurrence subject to quota share reinsurance coverage |  |  | 1,000 | 1,000 | 1,000 | 1,000 |  |  |  |  |  |  |  |
Excess of loss coverage and facultative facility coverage |  |  | 8,400 | 8,400 | 8,400 | 8,400 |  |  |  |  |  |  |  |
In excess of |  |  | 600 | 600 | 600 | 600 |  |  |  |  |  |  |  |
Total reinsurance coverage per occurrence |  |  | 8,470 | 8,470 | 8,500 | 8,500 |  |  |  |  |  |  |  |
Losses per occurrence subject to reinsurance coverage |  |  | $ 9,000 | $ 9,000 | $ 9,000 | $ 9,000 |  |  |  |  |  |  |  |
Single risk coverage |  |  |  |  |  |  |  |  |  | $ 9,000 |  |  |  |
Personal Lines | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reinsurance Retention [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Direct loss |  |  |  |  |  |  |  |  |  |  | 3,500 |  |  |
Personal Lines | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reinsurance Retention [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Direct loss |  |  |  |  |  |  |  |  |  |  | $ 9,000 |  |  |
Forecast |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reinsurance Retention [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reinstatement of premium protection, amount |  |  |  |  |  |  | $ 4,500 |  | $ 50,000 |  |  |  |  |
Excess of catastrophe coverage |  |  |  |  |  |  | $ 5,500 |  | $ 10,000 |  |  |  |  |
Reinsurance coverage percentage |  |  |  |  |  |  |  |  |  |  |  |  |  | 50.00%
Reinsurance coverage losses |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 400
Reinsurance excess losses in coverage |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 600
Catastrophe reinsurance coverage, (percent) |  |  |  |  |  |  | 71.00% |  |  |  |  |  |  |
Forecast | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reinsurance Retention [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reinsurance retention |  |  |  |  |  |  |  | $ 530 |  |  |  |  |  |
Forecast | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reinsurance Retention [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reinsurance retention |  |  |  |  |  |  |  | $ 640 |  |  |  |  |  |
Forecast | Catastrophe Reinsurance: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reinsurance Retention [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Initial loss subject to personal lines quota share treaty | $ 10,000 | $ 10,000 |  |  |  |  |  |  |  |  |  |  |  |
Risk retained per catastrophe occurrence |  | 4,250 |  |  |  |  |  |  |  |  |  |  |  |
Catastrophe loss coverage in excess of quota share coverage |  | $ 275,000 |  |  |  |  |  |  |  |  |  |  |  |
Reinstatement premium protection |  | Yes |  |  |  |  |  |  |  |  |  |  |  |
Ceded loss percentage |  |  |  |  |  |  |  | 6.00% |  |  |  |  |  |
Total ceded loss percentage |  |  |  |  |  |  |  | 16.00% |  |  |  |  |  |
Forecast | Personal Lines |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reinsurance Retention [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percent ceded | 16.00% | 16.00% |  |  |  |  |  |  |  |  |  |  |  |
Risk retained on initial $1,000,000 of losses | $ 840 | $ 840 |  |  |  |  |  |  |  |  |  |  |  |
Losses per occurrence subject to quota share reinsurance coverage | 1,000 | 1,000 |  |  |  |  |  |  |  |  |  |  |  |
Excess of loss coverage and facultative facility coverage | 400 | 8,400 |  |  |  |  |  |  |  |  |  |  |  |
In excess of | 600 | 600 |  |  |  |  |  |  |  |  |  |  |  |
Total reinsurance coverage per occurrence | 360 | 8,360 |  |  |  |  |  |  |  |  |  |  |  |
Losses per occurrence subject to reinsurance coverage | $ 1,000 | $ 9,000 |  |  |  |  |  |  |  |  |  |  |  |

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