Investments (Cash, Cash Equivalents and Investments) (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Investments, Debt and Equity Securities [Abstract]
Fixed maturity securities, available-for-sale	$ 1,355,410	$ 1,470,617
Fixed maturity securities, percent	88.40%	89.00%
Equity security	$ 13,902	$ 14,844
Equity securities, percent	0.90%	0.90%
Policy loans	$ 79,345	$ 80,307
Policy loans, percent	5.20%	4.90%
Other long-term investments	$ 63,927	$ 57,399
Other long-term investments, percent	4.20%	3.50%
Cash and cash equivalents	$ 21,298	$ 27,294
Cash and cash equivalents, percent	1.30%	1.70%
Total invested assets	$ 1,533,882	$ 1,650,461
Total invested assets, percent	100.00%	100.00%