Investments (Cash, Cash Equivalents and Investments) (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Investments, Debt and Equity Securities [Abstract]
Fixed maturity securities, available-for-sale	$ 1,234,048	$ 1,238,981
Equity securities, at fair value	5,419	5,282
Policy loans	75,274	75,359
Other long-term investments	85,118	82,725
Cash and cash equivalents	23,242	26,997
Total invested assets	$ 1,423,101	$ 1,429,344
Fixed maturity securities, percent	86.70%	86.70%
Equity securities, percent	0.40%	0.40%
Policy loans, percent	5.30%	5.30%
Other long-term investments, percent	6.00%	5.80%
Cash and cash equivalents, percent	1.60%	1.80%
Total invested assets, percent	100.00%	100.00%