SUMMARY OF INVESTMENTS (Unrealized Appreciation) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Change in net unrealized investment appreciation
Available-for-sale fixed maturities	$ (37,621)	$ 51,814	$ (132,579)
Available-for-sale equity securities	(6,459)	15,781	48,176
Deferred policy acquisition costs	11,380	(16,789)	42,102
Income tax effect	11,446	(17,784)	14,806
Total change in net unrealized investment appreciation, net of tax	$ (21,254)	$ 33,022	$ (27,495)