Investments - Schedule of Contractual Maturity of Fixed Maturity Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Amortized Cost
Due in one year or less	$ 114,873	$ 206,764
Due after one year through five years	323,054	208,179
Due after five years through ten years	108,305	45,230
Due after ten years	70,051	32,199
Fixed maturity securities in Amortized Cost	616,283	492,372
Total	1,143,594	894,145
Fair Value
Due in one year or less	114,942	206,721
Due after one year through five years	326,546	205,012
Due after five years through ten years	109,391	43,199
Due after ten years	69,836	29,939
Fixed maturity securities in Fair Value	620,715	484,871
Total fixed maturity securities	1,149,598	879,989
Commercial mortgage-backed securities
Amortized Cost
Mortgage backed securities in Amortized Cost	126,550	83,029
Total	126,550	83,029
Fair Value
Mortgage-backed securities in Fair Value	127,595	82,438
Total fixed maturity securities	127,595	82,438
Residential mortgage-backed securities
Amortized Cost
Mortgage backed securities in Amortized Cost	281,444	197,589
Total	281,444	197,589
Fair Value
Mortgage-backed securities in Fair Value	281,275	192,103
Total fixed maturity securities	281,275	192,103
Asset-backed securities
Amortized Cost
Mortgage backed securities in Amortized Cost	119,317	121,155
Total	119,317	121,155
Fair Value
Mortgage-backed securities in Fair Value	120,013	120,577
Total fixed maturity securities	$ 120,013	$ 120,577