Investments (Components of Net Investment Income) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Gross investment income	$ 12,795	$ 4,632	$ 19,369	$ 7,912
Less investment expense	(2,254)	(1,412)	(2,586)	(1,805)
Investment income, net of expenses	10,541	3,220	16,783	6,107
Fixed Maturities
Gross investment income	15,347	4,088	20,393	7,068
Mortgage loans
Gross investment income	2,963	367	3,246	540
Other invested assets
Gross investment income	3,705	96	2,632	152
Other interest income
Gross investment income	$ (9,220)	$ 81	$ (6,902)	$ 152