Quarterly Financial Information (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended								12 Months Ended
	Jul. 01, 2018	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Revenues		$ 65,570	$ 61,161	$ 59,842	$ 57,433	$ 67,863	$ 64,331	$ 60,852	$ 59,581	$ 244,006	$ 252,627	$ 245,406
Benefits and expenses		67,598	55,599	63,953	54,854	76,998	61,221	58,756	58,638	242,004	255,613	239,923
Federal income tax expense (benefit)		(596)	12,671	(1,553)	2,542	35,069	(339)	1,524	(1,113)	$ 13,064	$ 35,141	$ 3,514
Entity Incorporation, Date of Incorporation	Jul. 01, 2018
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent										21.00%	35.00%	35.00%
Effective income tax rate, foreign income tax rate, percent										0.00%
Net income (loss)		(1,432)	(7,109)	(2,558)	37	(44,204)	3,449	572	2,056	$ (11,062)	$ (38,127)	$ 1,969
Subpart F Income										18,403	0	0
Liability for Future Policy Benefits, Life		1,179,946				1,133,875				1,179,946	1,133,875
Deferred policy acquisition costs		155,747				167,063				155,747	167,063	167,790	$ 163,692
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount										68	35,718	0
Goodwill and Intangible Asset Impairment										$ 0	$ 4,631	$ 0
Common Stock [Member]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest		$ (1,432)	$ (7,109)	$ (2,558)	$ 37	$ (44,204)	$ 3,449	$ 572	$ 2,056
Common Stock Class A [Member]
Basic and diluted earnings (losses) per share common stock		$ (0.03)	$ (0.14)	$ (0.05)	$ 0.00	$ (0.89)	$ 0.07	$ 0.01	$ 0.04	$ (0.22)	$ (0.77)	$ 0.04
Common Stock Class B [Member]
Basic and diluted earnings (losses) per share common stock		$ (0.01)	$ (0.07)	$ (0.03)	$ 0.00	$ (0.44)	$ 0.03	$ 0.01	$ 0.02	$ (0.11)	$ (0.38)	$ 0.02
Impact due to System Conversion [Member]
Federal income tax expense (benefit)										$ 1,230
Net income (loss)										4,628
Liability for Future Policy Benefits, Life		$ 10,197								10,197
Deferred policy acquisition costs		$ 4,339								$ 4,339
Restatement Adjustment [Member]
Federal income tax expense (benefit)			$ 7,600
Previously Reported [Member] | Common Stock Class A [Member]
Basic and diluted earnings (losses) per share common stock			$ (0.30)
Previously Reported [Member] | Common Stock Class B [Member]
Basic and diluted earnings (losses) per share common stock			$ (0.14)