Investments - Schedule of Fixed Maturities, Allowance for Credit Loss (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Debt Securities, Available-for-sale, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses beginning balance	$ 7,115
Allowance for credit losses ending balance	10,395	$ 7,115
Corporates
Debt Securities, Available-for-sale, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses beginning balance	7,115	0
Additions to allowance for which credit losses were not previously recorded	3,297	72,508
Additions (reductions) to allowance for fixed maturities that previously had an allowance	(17)	(65,393)
Reduction of allowance for which the Company intends to sell or more likely than not will be required to sell or sold during the period	0	0
Allowance for credit losses ending balance	7,098	7,115
Corporates | Fixed maturities available for sale
Debt Securities, Available-for-sale, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses beginning balance	7,115
Allowance for credit losses ending balance	$ 10,395	$ 7,115