Supplemental Schedule of Reinsurance Premiums for Insurance Companies: Supplemental Schedule of Reinsurance Premiums for Insurance Companies Disclosure Table Text Block (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Life Insurance in Force, Gross	$ 11,054,484us-gaap_LifeInsuranceInForceGross	$ 11,415,328us-gaap_LifeInsuranceInForceGross	$ 11,293,128us-gaap_LifeInsuranceInForceGross
Life Insurance in Force, Assumed	418,775us-gaap_LifeInsuranceInForceAssumed	333,200us-gaap_LifeInsuranceInForceAssumed	213,041us-gaap_LifeInsuranceInForceAssumed
Life Insurance in Force, Ceded	6,128,608us-gaap_LifeInsuranceInForceCeded	6,493,122us-gaap_LifeInsuranceInForceCeded	6,004,459us-gaap_LifeInsuranceInForceCeded
Life Insurance in Force, Net	5,344,651us-gaap_LifeInsuranceInForceNet	5,255,406us-gaap_LifeInsuranceInForceNet	5,501,710us-gaap_LifeInsuranceInForceNet
Life Insurance in Force, Percentage Assumed to Net	7.80%	6.30%	3.90%
Direct Premiums Earned	557,395us-gaap_DirectPremiumsEarned	526,597us-gaap_DirectPremiumsEarned	447,866us-gaap_DirectPremiumsEarned
Assumed Premiums Earned	58,191us-gaap_AssumedPremiumsEarned	92,281us-gaap_AssumedPremiumsEarned	67,770us-gaap_AssumedPremiumsEarned
Ceded Premiums Earned	136,538us-gaap_CededPremiumsEarned	122,887us-gaap_CededPremiumsEarned	159,569us-gaap_CededPremiumsEarned
Premiums earned	479,048us-gaap_PremiumsEarnedNet	495,991us-gaap_PremiumsEarnedNet	356,067us-gaap_PremiumsEarnedNet
Premiums, Percentage Assumed to Net	12.10%us-gaap_PremiumsPercentageAssumedToNet	18.60%us-gaap_PremiumsPercentageAssumedToNet	19.00%us-gaap_PremiumsPercentageAssumedToNet
Accident and Health Insurance Product Line
Direct Premiums Earned	482,511	461,336	396,805
Assumed Premiums Earned	52,063	85,627	60,232
Ceded Premiums Earned	116,163	102,053	140,653
Premiums earned	418,411	444,910	316,384
Premiums, Percentage Assumed to Net	12.40%	19.20%	19.00%
Life and Annuity Insurance Product Line
Direct Premiums Earned	44,407	46,416	47,790
Assumed Premiums Earned	6,128	6,654	7,538
Ceded Premiums Earned	20,214	20,820	18,916
Premiums earned	30,321	32,250	36,412
Premiums, Percentage Assumed to Net	20.20%	20.60%	20.70%
Property, Liability and Casualty Insurance Product Line
Direct Premiums Earned	30,477	18,845	3,271
Ceded Premiums Earned	161	14
Premiums earned	$ 30,316	$ 18,831	$ 3,271
Premiums, Percentage Assumed to Net	0.00%	0.00%	0.00%

Supplemental Schedule of Reinsurance Premiums for Insurance Companies: Supplemental Schedule of Reinsurance Premiums for Insurance Companies Disclosure Table Text Block (Details) (USD $)
In Thousands, unless otherwise specified

12 Months Ended

Dec. 31, 2014

Dec. 31, 2013

Dec. 31, 2012

Life Insurance in Force, Gross

$ 11,054,484us-gaap_LifeInsuranceInForceGross

$ 11,415,328us-gaap_LifeInsuranceInForceGross

$ 11,293,128us-gaap_LifeInsuranceInForceGross

Life Insurance in Force, Assumed

418,775us-gaap_LifeInsuranceInForceAssumed

333,200us-gaap_LifeInsuranceInForceAssumed

213,041us-gaap_LifeInsuranceInForceAssumed

Life Insurance in Force, Ceded

6,128,608us-gaap_LifeInsuranceInForceCeded

6,493,122us-gaap_LifeInsuranceInForceCeded

6,004,459us-gaap_LifeInsuranceInForceCeded

Life Insurance in Force, Net

5,344,651us-gaap_LifeInsuranceInForceNet

5,255,406us-gaap_LifeInsuranceInForceNet

5,501,710us-gaap_LifeInsuranceInForceNet

Life Insurance in Force, Percentage Assumed to Net

7.80%us-gaap_LifeInsuranceInForcePercentageAssumedToNet

6.30%us-gaap_LifeInsuranceInForcePercentageAssumedToNet

3.90%us-gaap_LifeInsuranceInForcePercentageAssumedToNet

Direct Premiums Earned

557,395us-gaap_DirectPremiumsEarned

526,597us-gaap_DirectPremiumsEarned

447,866us-gaap_DirectPremiumsEarned

Assumed Premiums Earned

58,191us-gaap_AssumedPremiumsEarned

92,281us-gaap_AssumedPremiumsEarned

67,770us-gaap_AssumedPremiumsEarned

Ceded Premiums Earned

136,538us-gaap_CededPremiumsEarned

122,887us-gaap_CededPremiumsEarned

159,569us-gaap_CededPremiumsEarned

Premiums earned

479,048us-gaap_PremiumsEarnedNet

495,991us-gaap_PremiumsEarnedNet

356,067us-gaap_PremiumsEarnedNet

Premiums, Percentage Assumed to Net

12.10%us-gaap_PremiumsPercentageAssumedToNet

18.60%us-gaap_PremiumsPercentageAssumedToNet

19.00%us-gaap_PremiumsPercentageAssumedToNet

Accident and Health Insurance Product Line

Direct Premiums Earned

482,511us-gaap_DirectPremiumsEarned
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= us-gaap_AccidentAndHealthInsuranceSegmentMember

461,336us-gaap_DirectPremiumsEarned
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= us-gaap_AccidentAndHealthInsuranceSegmentMember

396,805us-gaap_DirectPremiumsEarned
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= us-gaap_AccidentAndHealthInsuranceSegmentMember

Assumed Premiums Earned

52,063us-gaap_AssumedPremiumsEarned
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= us-gaap_AccidentAndHealthInsuranceSegmentMember

85,627us-gaap_AssumedPremiumsEarned
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= us-gaap_AccidentAndHealthInsuranceSegmentMember

60,232us-gaap_AssumedPremiumsEarned
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= us-gaap_AccidentAndHealthInsuranceSegmentMember

Ceded Premiums Earned

116,163us-gaap_CededPremiumsEarned
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= us-gaap_AccidentAndHealthInsuranceSegmentMember

102,053us-gaap_CededPremiumsEarned
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= us-gaap_AccidentAndHealthInsuranceSegmentMember

140,653us-gaap_CededPremiumsEarned
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= us-gaap_AccidentAndHealthInsuranceSegmentMember

Premiums earned

418,411us-gaap_PremiumsEarnedNet
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= us-gaap_AccidentAndHealthInsuranceSegmentMember

444,910us-gaap_PremiumsEarnedNet
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= us-gaap_AccidentAndHealthInsuranceSegmentMember

316,384us-gaap_PremiumsEarnedNet
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= us-gaap_AccidentAndHealthInsuranceSegmentMember

Premiums, Percentage Assumed to Net

12.40%us-gaap_PremiumsPercentageAssumedToNet
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= us-gaap_AccidentAndHealthInsuranceSegmentMember

19.20%us-gaap_PremiumsPercentageAssumedToNet
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= us-gaap_AccidentAndHealthInsuranceSegmentMember

19.00%us-gaap_PremiumsPercentageAssumedToNet
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= us-gaap_AccidentAndHealthInsuranceSegmentMember

Life and Annuity Insurance Product Line

Direct Premiums Earned

44,407us-gaap_DirectPremiumsEarned
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= us-gaap_LifeAndAnnuityInsuranceProductLineMember

46,416us-gaap_DirectPremiumsEarned
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= us-gaap_LifeAndAnnuityInsuranceProductLineMember

47,790us-gaap_DirectPremiumsEarned
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= us-gaap_LifeAndAnnuityInsuranceProductLineMember

Assumed Premiums Earned

6,128us-gaap_AssumedPremiumsEarned
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= us-gaap_LifeAndAnnuityInsuranceProductLineMember

6,654us-gaap_AssumedPremiumsEarned
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= us-gaap_LifeAndAnnuityInsuranceProductLineMember

7,538us-gaap_AssumedPremiumsEarned
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= us-gaap_LifeAndAnnuityInsuranceProductLineMember

Ceded Premiums Earned

20,214us-gaap_CededPremiumsEarned
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= us-gaap_LifeAndAnnuityInsuranceProductLineMember

20,820us-gaap_CededPremiumsEarned
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= us-gaap_LifeAndAnnuityInsuranceProductLineMember

18,916us-gaap_CededPremiumsEarned
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= us-gaap_LifeAndAnnuityInsuranceProductLineMember

Premiums earned

30,321us-gaap_PremiumsEarnedNet
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= us-gaap_LifeAndAnnuityInsuranceProductLineMember

32,250us-gaap_PremiumsEarnedNet
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= us-gaap_LifeAndAnnuityInsuranceProductLineMember

36,412us-gaap_PremiumsEarnedNet
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= us-gaap_LifeAndAnnuityInsuranceProductLineMember

Premiums, Percentage Assumed to Net

20.20%us-gaap_PremiumsPercentageAssumedToNet
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= us-gaap_LifeAndAnnuityInsuranceProductLineMember

20.60%us-gaap_PremiumsPercentageAssumedToNet
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= us-gaap_LifeAndAnnuityInsuranceProductLineMember

20.70%us-gaap_PremiumsPercentageAssumedToNet
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= us-gaap_LifeAndAnnuityInsuranceProductLineMember

Property, Liability and Casualty Insurance Product Line

Direct Premiums Earned

30,477us-gaap_DirectPremiumsEarned
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= us-gaap_PropertyLiabilityAndCasualtyInsuranceSegmentMember

18,845us-gaap_DirectPremiumsEarned
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= us-gaap_PropertyLiabilityAndCasualtyInsuranceSegmentMember

3,271us-gaap_DirectPremiumsEarned
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= us-gaap_PropertyLiabilityAndCasualtyInsuranceSegmentMember

Ceded Premiums Earned

161us-gaap_CededPremiumsEarned
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= us-gaap_PropertyLiabilityAndCasualtyInsuranceSegmentMember

14us-gaap_CededPremiumsEarned
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= us-gaap_PropertyLiabilityAndCasualtyInsuranceSegmentMember

Premiums earned

$ 30,316us-gaap_PremiumsEarnedNet
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= us-gaap_PropertyLiabilityAndCasualtyInsuranceSegmentMember

$ 18,831us-gaap_PremiumsEarnedNet
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= us-gaap_PropertyLiabilityAndCasualtyInsuranceSegmentMember

$ 3,271us-gaap_PremiumsEarnedNet
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= us-gaap_PropertyLiabilityAndCasualtyInsuranceSegmentMember

Premiums, Percentage Assumed to Net

0.00%us-gaap_PremiumsPercentageAssumedToNet
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= us-gaap_PropertyLiabilityAndCasualtyInsuranceSegmentMember

- Definition

Amount of earned premiums assumed from other entities.

+ References

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

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-Name Accounting Standards Codification

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Amount of earned premiums ceded to other entities.

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Amount, before premiums ceded to other entities and premiums assumed by the entity, of premiums earned.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 17

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

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- Definition

Amount of life insurance issued and outstanding assumed from other entities. Includes, but not limited to, dividends and adjustments to face value.

+ References

+ Details

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- Definition

Amount of life insurance issued and outstanding ceded to other entities. Includes, but not limited to, dividends and adjustments to face value.

+ References

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- Definition

Amount before contracts ceded to other entities and contracts assumed by the entity of life insurance issued and outstanding. Includes, but not limited to, dividends and adjustments to face value.

+ References

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Amount after contracts ceded to other entities and contracts assumed by the entity of life insurance issued and outstanding. Includes, but not limited to, dividends and adjustments to face value.

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Percentage of assumed life insurance issued and outstanding contracts to life insurance issued and outstanding after contracts ceded to other entities and contracts assumed by the entity. Includes, but not limited to, dividends and adjustments to face value.

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Amount, after premiums ceded to other entities and premiums assumed by the entity, of premiums earned.

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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

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Percentage of assumed premiums earned by the entity to net premiums earned.

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