Investments - Schedule of Commercial Loan Participations, Allowance for Credit Loss (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for credit losses beginning balance	$ 1,789	$ 827
Provision (reversal) for credit losses	1,883	962
Allowance for credit losses ending balance	$ 3,672	$ 1,789