FEDERAL INCOME TAX (Federal Income Tax) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Current	$ 3,239	$ 37,649	$ 15,649
Deferred	5,524	(5,324)	1,677
Total	$ 8,763	$ 32,325	$ 17,326