Schedule IV - Reinsurance (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Reinsurance Premiums for Insurance Companies, by Product Segment [Line Items]
Gross amount, life insurance in force	$ 2,250,112	$ 2,350,473	$ 2,469,428
Ceded to other companies, life insurance in force	13,521	4,742	4,692
Assumed from other companies, life insurance in force	57,976	61,488	65,197
Net amount, life insurance in force	2,294,567	2,407,219	2,529,933
Net amount, insurance premiums and other considerations	45,347	76,675	118,912
Percent of amount assumed to net, life insurance in force	2.53%	2.55%	2.58%
Insurance Premiums and Other Considerations [Member]
Reinsurance Premiums for Insurance Companies, by Product Segment [Line Items]
Gross amount, insurance premiums and other considerations	155,199	172,125	202,876
Ceded to other companies, insurance premiums and other considerations	6,879	7,160	8,497
Assumed from other companies, insurance premiums and other considerations	618	716	722
Net amount, insurance premiums and other considerations	148,938	165,681	195,101
Percent of amount assumed to net, insurance premiums and other considerations	0.41%	0.43%	0.37%
Annuity Product Charges [Member]
Reinsurance Premiums for Insurance Companies, by Product Segment [Line Items]
Gross amount, insurance premiums and other considerations	110,142	95,802	84,338
Ceded to other companies, insurance premiums and other considerations	6,551	6,796	8,149
Assumed from other companies, insurance premiums and other considerations	0	0	0
Net amount, insurance premiums and other considerations	103,591	89,006	76,189
Percent of amount assumed to net, insurance premiums and other considerations	0.00%	0.00%	0.00%
Traditional Life, Accident and Health Insurance, and Life Contingent Immediate Annuity Premiums [Member]
Reinsurance Premiums for Insurance Companies, by Product Segment [Line Items]
Gross amount, insurance premiums and other considerations	45,057	76,323	118,538
Ceded to other companies, insurance premiums and other considerations	328	364	348
Assumed from other companies, insurance premiums and other considerations	618	716	722
Net amount, insurance premiums and other considerations	$ 45,347	$ 76,675	$ 118,912
Percent of amount assumed to net, insurance premiums and other considerations	1.36%	0.93%	0.61%