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Notes Payable (Line of Credit Narrative) (Details) (2013 Line of Credit [Member], USD $)
 6 Months Ended
Jun. 30, 2014
occasions
guarantor
Dec. 31, 2013
2013 Line of Credit [Member]
    
Line of Credit Facility [Line Items]    
Line of credit, maximum borrowing capacity $ 140,000,000  
Line of credit, length of credit agreement, years 4 years  
Minimum risk-based capital ratio 275.00%  
Maximum debt to capital ratio 0.35  
Minimum capital to be retained 80.00%  
Minimum portion of net income to be retained 50.00%  
Minimum capital contributions to be retained 50.00%  
Line of credit, number of occasions borrowing capacity can be increased 3  
Line of credit, additional borrowing capacity, aggregate amount 50,000,000  
Line of credit, maturity date extension available, years 1 year  
Line of credit, number of guarantors 0  
Line of credit, amount outstanding $ 0 $ 0