Reinsurance - Narrative (Details) - USD ($)	1 Months Ended	3 Months Ended	4 Months Ended	6 Months Ended	7 Months Ended		12 Months Ended				18 Months Ended
	Jan. 31, 2026	Dec. 31, 2025	Apr. 30, 2025	Jun. 30, 2026	Apr. 30, 2026	Apr. 30, 2025	Dec. 31, 2026	Jun. 30, 2026	Dec. 31, 2025	Dec. 31, 2024	Jun. 30, 2025	Jul. 01, 2025
Reinsurance Retention [Line Items]
Underlying XOL treaty, reinsurance coverage (percent)						71.00%				50.00%	50.00%
Underlying XOL treaty, excess of loss coverage amount						$ 4,500,000				$ 400,000
Underlying XOL treaty, excess of loss coverage, excluded amount						$ 5,500,000				600,000
Reinstatement of premium protection, amount											$ 400,000
Retention limited under XOL treaty		$ 3,900,000	$ 5,200,000							4,800,000
Unearned ceded premiums		22,937,000							$ 22,937,000	31,745,000
Net contingent ceding commissions receivable		1,754,000							1,754,000
Net contingent ceding commissions payable		$ (732,000)							$ (732,000)	$ (727,000)
Bonds | Series 2025-1 Notes
Reinsurance Retention [Line Items]
Debt instrument, face amount												$ 125,000,000
Stated interest rate (percent)												4.50%
Collateralized reinsurance protection amount												$ 125,000,000
Property And Casualty Personal Insurance Product Lines
Reinsurance Retention [Line Items]
Quota share treaty percent ceded									16.00%	27.00%
Property And Casualty Personal Insurance Product Lines | Subsequent Event
Reinsurance Retention [Line Items]
Quota share treaty percent ceded	5.00%
Forecast
Reinsurance Retention [Line Items]
Underlying XOL treaty, reinsurance coverage (percent)					90.00%			50.00%
Underlying XOL treaty, excess reinsurance coverage (percent)								100.00%
Underlying XOL treaty, excess of loss coverage amount					$ 5,000,000			$ 250,000
Underlying XOL treaty, excess of loss coverage, excluded amount					$ 5,000,000			750,000
Retention limited under XOL treaty				$ 5,000,000
Forecast | Property And Casualty Personal Insurance Product Lines
Reinsurance Retention [Line Items]
Quota share treaty percent ceded							30.00%
Forecast | Minimum
Reinsurance Retention [Line Items]
Underlying XOL treaty, excess coverage amount								1,000,000
Forecast | Maximum
Reinsurance Retention [Line Items]
Underlying XOL treaty, excess coverage amount								$ 9,000,000