Income Taxes (Deferred Federal Income Taxes) (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Future policy benefit reserves	$ 20,307	$ 78,372
Net operating and capital loss carryforwards	249	485
Accrued expenses	68	65
Investments	8,941	6,002
Other	347	276
Total gross deferred tax assets	29,912	85,200
Deferred policy acquisition costs, cost of customer relations acquired and intangible assets	(33,859)	(25,518)
Unrealized gains on investments available-for-sale	2,366	8,297
Accrued policyholder dividends	(2)	(441)
Tax reserve transition liability	(3,883)	0
Other	(176)	(147)
Total gross deferred tax liabilities	(40,286)	(34,403)
Net deferred tax liability	(10,374)	0
Net deferred tax asset	$ 0	$ 50,797