INVESTMENTS (Details 9) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net [Line Items]
Total OTTI recognized in earnings	$ 1,528	$ 6,369	$ 8,082	$ 16,099
Fixed Maturities [Member]
Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net [Line Items]
Total OTTI recognized in earnings	1,528	6,369	8,082	13,539
Non-US Government [Member]
Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net [Line Items]
Total OTTI recognized in earnings	0	497	4,282	497
Corporate Debt [Member]
Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net [Line Items]
Total OTTI recognized in earnings	1,528	5,872	3,800	13,042
Equity Securities [Member]
Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net [Line Items]
Total OTTI recognized in earnings	0	0	0	2,560
Exchange-Traded Funds [Member]
Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net [Line Items]
Total OTTI recognized in earnings	$ 0	$ 0	$ 0	$ 2,560