Schedule IV - Reinsurance Level 4 (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Life Insurance in Force [Member]
Reinsurance Premiums for Insurance Companies, by Product Segment [Line Items]
Reinsurance Premiums for Insurance Companies, by Product Segment, Gross Amount	$ 2,350,473	$ 2,469,428	$ 2,505,280
Reinsurance Premiums for Insurance Companies, by Product Segment, Amount Ceded to Other Companies	4,742	4,692	3,147
Reinsurance Premiums for Insurance Companies, by Product Segment, Amount Assumed from Other Companies	61,488	65,197	69,734
Reinsurance Premiums for Insurance Companies, by Product Segment, Net Amount	2,407,219	2,529,933	2,571,867
Reinsurance Premiums for Insurance Companies, by Product Segment, Percentage of Amount Assumed to Net	0.00%	0.00%	0.00%
Fixed Annuity Segment [Member]
Reinsurance Premiums for Insurance Companies, by Product Segment [Line Items]
Reinsurance Premiums for Insurance Companies, by Product Segment, Gross Amount	93,472	84,338	78,138
Reinsurance Premiums for Insurance Companies, by Product Segment, Amount Ceded to Other Companies	6,796	8,149	9,063
Reinsurance Premiums for Insurance Companies, by Product Segment, Amount Assumed from Other Companies	0	0	0
Reinsurance Premiums for Insurance Companies, by Product Segment, Net Amount	86,676	76,189	69,075
Reinsurance Premiums for Insurance Companies, by Product Segment, Percentage of Amount Assumed to Net	0.00%	0.00%	0.00%
Traditional Life and Accident and Health Insurance Segments [Member]
Reinsurance Premiums for Insurance Companies, by Product Segment [Line Items]
Reinsurance Premiums for Insurance Companies, by Product Segment, Gross Amount	12,525	11,777	11,811
Reinsurance Premiums for Insurance Companies, by Product Segment, Amount Ceded to Other Companies	364	348	711
Reinsurance Premiums for Insurance Companies, by Product Segment, Amount Assumed from Other Companies	716	722	882
Reinsurance Premiums for Insurance Companies, by Product Segment, Net Amount	12,877	12,151	11,982
Reinsurance Premiums for Insurance Companies, by Product Segment, Percentage of Amount Assumed to Net	0.00%	0.00%	0.00%
Insurance Premium and Other Consideration [Member]
Reinsurance Premiums for Insurance Companies, by Product Segment [Line Items]
Reinsurance Premiums for Insurance Companies, by Product Segment, Gross Amount	105,997	96,115	89,949
Reinsurance Premiums for Insurance Companies, by Product Segment, Amount Ceded to Other Companies	7,160	8,497	9,774
Reinsurance Premiums for Insurance Companies, by Product Segment, Amount Assumed from Other Companies	716	722	882
Reinsurance Premiums for Insurance Companies, by Product Segment, Net Amount	$ 99,553	$ 88,340	$ 81,057
Reinsurance Premiums for Insurance Companies, by Product Segment, Percentage of Amount Assumed to Net	0.00%	0.00%	0.00%

Amount of premiums assumed from other companies.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 17

-Article 12

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 235

-Section S99

-Paragraph 2

-Subparagraph (SX 210.12-17)

-URI http://asc.fasb.org/extlink&oid=6588446&loc=d3e574992-122915

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