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ORGANIZATION, CONSOLIDATION AND BASIS OF PRESENTATION (Narrative) (Details) - Premiums Written Net - Homeowners Multiperil Insurance Product Line - Customer Concentration Risk
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Ivantage Select Agency Inc    
Organization, Consolidation, And Basis of Preparation [Line Items]    
Concentration risk, percentage 20.50% 22.80%
SageSure Insurance Managers LLC    
Organization, Consolidation, And Basis of Preparation [Line Items]    
Concentration risk, percentage 24.20% 19.60%