Reinsurance and Policy Provisions (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items]
Reinsurance retention limit	$ 1,000
Ceded Premiums Earned	31,363	$ 32,450	$ 32,922
Reinsurance Effect on Claims and Benefits Incurred, Amount Ceded	20,759	21,358	24,159
Ceded reinsurance allowances for expenses and commissions	2,899	4,231	4,548
Assumed Premiums Earned	2,546	2,508	2,637
Policyholder Benefits and Claims Incurred, Assumed	7,437	2,752	6,356
Assumed reinsurance allowances for expenses and commissions	1,340	1,410	1,543
Ceded Premiums, Life Insurance in Force	13,770,695	14,029,567	14,086,576
Assumed Premiums, Life Insurance in Force	$ 430,583	$ 455,176	$ 487,284
Reinsurance effect on in force ceded, percentage	21.00%	21.80%
Contracts in Force Subject to Participation Through Reinsurance, Percentage	0.70%	0.70%
100% Quota Share Accidental Death
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items]
Reinsurance retention limit	$ 17,000
Maximum | Company sponsored agent trip | 100% Quota Share Accidental Death
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items]
Loss Contingency, Estimate of Possible Loss	50,000
Maximum | Home office | 100% Quota Share Accidental Death
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items]
Loss Contingency, Estimate of Possible Loss	$ 200,000