Investments - Schedule of Amortized Cost and Fair Value of Mortgage-backed Securities by Contractual Maturity (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Amortized Cost
Due after one year through five years	$ 455
Due after five years through ten years	1,200
Due after ten years	4,689
Agency mortgage-backed securities	2,688
Amortized Cost	9,032	$ 9,112
Estimated Fair Value
Due after one year through five years	455
Due after five years through ten years	1,210
Due after ten years	3,676
Agency mortgage-backed securities	2,348
Estimated Fair Value	7,689	7,790
Amortized Cost
Due after one year through five years	0
Due after five years through ten years	0
Due after ten years	703
Agency mortgage-backed securities	1,418
Total	2,121	2,130
Estimated Fair Value
Due after one year through five years	0
Due after five years through ten years	0
Due after ten years	529
Agency mortgage-backed securities	1,182
Total	$ 1,711	$ 1,712