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Nature of Operations and Basis of Presentation (Narratives) (Details)
3 Months Ended 9 Months Ended
Sep. 30, 2016
USD ($)
state
Sep. 30, 2015
USD ($)
Sep. 30, 2016
USD ($)
state
segment
Sep. 30, 2015
USD ($)
Dec. 31, 2015
USD ($)
Organization, Consolidation and Presentation of Financial Statements [Abstract]          
Number of business segments | segment     2    
Segment Reporting Information [Line Items]          
Payment for income taxes     $ 24,026,000 $ 31,724,000  
Federal tax refund received     0 0  
Interest payments     0 0  
Decrease in DAC asset related to assumed realization of unrealized gains (losses) $ 21,860,000   21,860,000   $ 2,003,000
Federal income tax expense 2,807,000 $ 7,290,000 $ 6,904,000 $ 19,957,000  
Federal statutory rate     35.00% 35.00%  
Liability for unrecognized tax benefits $ 0   $ 0   $ 0
Property and Casualty Insurance          
Segment Reporting Information [Line Items]          
Number of states in which we are licensed as insurer | state 46   46    
Life Insurance          
Segment Reporting Information [Line Items]          
Number of states in which we are licensed as insurer | state 37   37