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Debt - Narrative (Details) - USD ($)	3 Months Ended
Debt - Narrative (Details) - USD ($)	Mar. 31, 2026	Mar. 31, 2025	Dec. 31, 2025
Debt Instrument [Line Items]
Funds held under reinsurance agreements	$ 20,549,000		$ 24,233,000
Funds-withheld obligation relating to reinsurance agreement accounted for embedded derivative	20,500,000		$ 21,300,000
Operating and Other Expenses
Debt Instrument [Line Items]
Change in the fair value of the underlying asset portfolio	221,000	$ 282,000
Senior Unsecured Notes
Debt Instrument [Line Items]
Face amount of debt	$ 12,900,000
Senior Unsecured Notes \| 9.75% Public Senior Unsecured Notes (New Public Notes)
Debt Instrument [Line Items]
Maturity date	Sep. 30, 2028
Interest rate	9.75%
Interest rate, payment terms	interest rate of 9.75% per annum, payable quarterly at the end of March, June, September and December
Senior Secured Notes
Debt Instrument [Line Items]
Due in 2028	$ 16,900,000
Senior Secured Notes \| TIC
Debt Instrument [Line Items]
Due in 2028	$ 4,000,000