Investments, Summary of Realized Investment Gains (Losses) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Summary of realized investment gains (losses) [Abstract]
Gains	$ 0	$ 101	$ 70	$ 101
Losses	0	0	0	(72)
Realized investment losses (gains), net	0	101	70	29
Fixed Maturities [Member]
Summary of realized investment gains (losses) [Abstract]
Gains	0	101	70	101
Losses	0	0	0	(53)
Realized investment losses (gains), net	0	101	70	48
Equity Securities [Member]
Summary of realized investment gains (losses) [Abstract]
Gains	0	0	0	0
Losses	0	0	0	0
Realized investment losses (gains), net	0	0	0	0
Other Invested Assets [Member]
Summary of realized investment gains (losses) [Abstract]
Gains	0	0	0	0
Losses	0	0	0	(19)
Realized investment losses (gains), net	$ 0	$ 0	$ 0	$ (19)