Reinsurance and Policy Provisions (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Reinsurance Premiums for Insurance Companies, by Product Segment [Line Items]
Reinsurance retention limit	$ 1,000
Ceded Premiums Earned	33,058	$ 33,462	$ 32,513
Reinsurance Effect on Claims and Benefits Incurred, Amount Ceded	22,515	26,183	16,972
Assumed Premiums Earned	2,670	2,751	783
Policyholder Benefits and Claims Incurred, Assumed	2,302	1,231	1,667
Ceded Premiums, Life Insurance in Force	$ 14,258,000	$ 14,263,000	13,837,869
Reinsurance effect on in force ceded, percentage	23.50%	24.10%
Assumed Premiums, Life Insurance in Force	$ 524,000	$ 552,000	$ 592,022
Contracts in Force Subject to Participation Through Reinsurance, Percentage	0.90%	0.90%
100% Quota Share Accidental Death [Member]
Reinsurance Premiums for Insurance Companies, by Product Segment [Line Items]
Reinsurance retention limit	$ 14,600
Maximum [Member] | Company sponsored agent trip [Member] | 100% Quota Share Accidental Death [Member]
Reinsurance Premiums for Insurance Companies, by Product Segment [Line Items]
Loss Contingency, Estimate of Possible Loss	50,000
Maximum [Member] | Home office [Member] | 100% Quota Share Accidental Death [Member]
Reinsurance Premiums for Insurance Companies, by Product Segment [Line Items]
Loss Contingency, Estimate of Possible Loss	$ 200,000