Investments, Summary of Realized Investment Gains (Losses) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Summary of realized investment gains [Abstract]
Gains	$ 4,903	$ 7,871
Losses	0	(451)
Realized investment gains, net	4,903	7,420
Proceeds from Sales of other invested assets [Abstract]
Receivable from sale of other invested assets	0	12,678
Fixed Maturities [Member]
Summary of realized investment gains [Abstract]
Gains	570	835
Losses	0	(450)
Realized investment gains, net	570	385
Proceeds from sales of available-for-sale fixed maturities [Abstract]
Sales proceeds	9,244	18,504
Gross gains	454	835
Gross losses	0	(450)
Equity Securities [Member]
Summary of realized investment gains [Abstract]
Gains	0	88
Losses	0	(1)
Realized investment gains, net	0	87
Proceeds from sales of equity securities [Abstract]
Sales proceeds	61	5
Gross gains	0	0
Gross losses	0	(1)
Other Invested Assets [Member]
Summary of realized investment gains [Abstract]
Gains	4,333	6,948
Losses	0	0
Realized investment gains, net	4,333	6,948
Proceeds from Sales of other invested assets [Abstract]
Sales proceeds	19,761	0
Gross gains	4,333	6,948
Gross losses	$ 0	$ 0