ORGANIZATION, CONSOLIDATION AND BASIS OF PRESENTATION (Narrative) (Details) - USD ($)		3 Months Ended
	Feb. 25, 2019	Mar. 31, 2019	Mar. 31, 2018	Mar. 05, 2019
Organization, Consolidation, And Basis of Preparation [Line Items]
Repayments of promissory note		$ 48,000,000	$ 5,000,000
Premiums Written Net | Homeowners Multiperil Insurance Product Line | Customer Concentration Risk | Ivantage Select Agency Inc
Organization, Consolidation, And Basis of Preparation [Line Items]
Concentration risk, percentage		22.80%	22.80%
Premiums Written Net | Homeowners Multiperil Insurance Product Line | Customer Concentration Risk | SageSure Insurance Managers LLC
Organization, Consolidation, And Basis of Preparation [Line Items]
Concentration risk, percentage		19.60%	11.80%
1347 Property Insurance Holdings, Inc
Organization, Consolidation, And Basis of Preparation [Line Items]
Consideration transferred	$ 51,000,000
Cash consideration	25,500,000
Equity issued	$ 25,500,000
Weighted average maturity of agreements	5 years
Repayments of promissory note	$ 45,000,000
Reinsurance right of first refusal agreement, term	5 years
Reinsurance right of first refusal, threshold percent	7.50%
Investment advisory services agreement, term	5 years
Minimum net book value	$ 42,000,000
Unsecured Debt | Senior Unsecured Fixed Rate Notes, Due 2029
Organization, Consolidation, And Basis of Preparation [Line Items]
Debt instrument face amount				$ 100,000,000
Stated interest rate				7.50%