FIXED MATURITY INVESTMENTS - Schedule of Fair Value Of Fixed Maturity Investments (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Net Investment Income [Line Items]
Total fixed maturity securities	$ 94,336	$ 53,028
Liquidity funds	78,529	12,581
Total fixed maturity investments, at fair value	172,865	65,609
U.S. government and agencies
Net Investment Income [Line Items]
Total fixed maturity securities	26,120	17,979
Agency residential mortgage-backed securities ("RMBS")
Net Investment Income [Line Items]
Total fixed maturity securities	23,671	18,258
Corporate bonds
Net Investment Income [Line Items]
Total fixed maturity securities	38,487	9,769
Asset-backed securities ("ABS")
Net Investment Income [Line Items]
Total fixed maturity securities	6,058	5,565
Non-agency RMBS
Net Investment Income [Line Items]
Total fixed maturity securities	0	600
Municipal bonds
Net Investment Income [Line Items]
Total fixed maturity securities	$ 0	$ 857

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