Investments, Summary of Realized Investment Gains (Losses) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Summary of realized investment gains (losses) [Abstract]
Gains	$ 249	$ 1,385
Losses	0	0
Realized investment gains (losses), net	249	1,385
Fixed Maturities [Member]
Summary of realized investment gains (losses) [Abstract]
Gains	249	272
Losses	0	0
Realized investment gains (losses), net	249	272
Equity Securities [Member]
Summary of realized investment gains (losses) [Abstract]
Gains	0	1,113
Losses	0	0
Realized investment gains (losses), net	0	1,113
Other Invested Assets [Member]
Summary of realized investment gains (losses) [Abstract]
Gains	0	0
Losses	0	0
Realized investment gains (losses), net	$ 0	$ 0