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Basis of Presentation (Details Textual) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax $ 1,786 $ 3,455 $ 7,620 $ 5,140
Other Tax Expense (Benefit) $ 625 $ 1,210 2,667 $ 1,799
Quantifying Misstatement in Current Year Financial Statements, Amount     3,012  
Property and casualty [Member]        
Quantifying Misstatement in Current Year Financial Statements, Amount     2,056  
Annuity [Member]        
Quantifying Misstatement in Current Year Financial Statements, Amount     519  
Life [Member]        
Quantifying Misstatement in Current Year Financial Statements, Amount     $ 437