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Concentration Risk Disclosure [Text Block]: Ceded Credit Risk [Table Text Block] (Details) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Reinsurance Recoverables, Including Reinsurance Premium Paid $ 368,731 $ 380,593
CededCreditRiskReinsurerNationalGuardianLifeInsuranceCompanyMember | AM Best, A- Rating    
Reinsurance Recoverables, Including Reinsurance Premium Paid 219,058  
CededCreditRiskReinsurerGuggenheimLifeAndAnnuityCompanyMember | AM Best, B++ Rating    
Reinsurance Recoverables, Including Reinsurance Premium Paid $ 93,967