Value of Business Acquired (Balance of and Changes in VOBA) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Movement in Present Value of Future Insurance Profits [Roll Forward]
Balance, beginning of year	$ 33,222	$ 35,109	$ 30,287
Amortization-Impact of assumption and experience unlocking and true-ups	2,093	1,485	10,035
Amortization-All other	(6,376)	(7,348)	(7,422)
Interest	1,778	1,983	2,001
Change in unrealized investment gains and losses	(692)	1,993	208
Balance, end of year	$ 30,025	$ 33,222	$ 35,109