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Fair Value Measurements Financial Instruments not Carried at Fair Value (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]        
Fixed maturities held-to-maturity, fair value $ 223,533 $ 193,739    
Mortgage loans 671 1,509    
Policy loans 48,868 42,993    
Short-term investments 0 2,340    
Cash and cash equivalents, at carrying value 54,593 56,299 33,255 49,723
Liability for future policy benefits individual and group annuities 55,485 51,750    
Mortgage loans on real estate, interest rate 6.40% 6.60%    
Mortgage loan maturity lower end range 2 years      
Mortgage loan maturity higher end range 29 years      
Mortgage loans interest rate used to estimate fair value 6.25% 6.25%    
Insurance policy loans interest rate 7.70% 7.70%    
Fair value minimum interest rate of investment contract 0.10%      
Fair value maximum rate of investment contract 3.80%      
Carrying (Reported) Amount, Fair Value Disclosure [Member]
       
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]        
Fixed maturities held-to-maturity, fair value 227,696 187,008    
Mortgage loans 671 1,509    
Policy loans 48,868 42,993    
Short-term investments 0 2,340    
Cash and cash equivalents, at carrying value 54,593 56,299    
Liability for future policy benefits individual and group annuities 39,469 36,392    
Estimate of Fair Value, Fair Value Disclosure [Member]
       
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]        
Fixed maturities held-to-maturity, fair value 223,533 193,739    
Mortgage loans 695 1,503    
Policy loans 48,868 42,993    
Short-term investments 0 2,340    
Cash and cash equivalents, fair value disclosure 54,593 56,299    
Liability for future policy benefits individual and group annuities $ 44,960 $ 38,679