SEGMENT INFORMATION (Narrative) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($) segment location	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Segment Reporting Information [Line Items]
Number of reportable business segments | segment	2
Life insurance in force before ceded reinsurance	$ 5,314,548	$ 5,491,932	$ 5,366,061
Property and Casualty Insurance
Segment Reporting Information [Line Items]
Number of domestic business locations | location	7
Property and Casualty Insurance | Commercial Lines | Product Concentration Risk | Sales Revenue, Segment
Segment Reporting Information [Line Items]
Percentage of insurance in force	92.50%
Property and Casualty Insurance | Personal Lines | Product Concentration Risk | Sales Revenue, Segment
Segment Reporting Information [Line Items]
Percentage of insurance in force	7.50%
Life Insurance
Segment Reporting Information [Line Items]
Life insurance in force before ceded reinsurance	$ 5,314,548	$ 5,491,932
Life Insurance | Traditional Life | Product Concentration Risk | Sales Revenue, Segment
Segment Reporting Information [Line Items]
Percentage of insurance in force	73.00%	68.50%
Life Insurance | Universal life policy fees | Product Concentration Risk | Sales Revenue, Segment
Segment Reporting Information [Line Items]
Percentage of insurance in force	26.60%	26.30%