EMPLOYEE BENEFIT PLANS Table 3 (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Defined Benefit Plan Disclosure [Line Items]
Total changes in other comprehensive income (loss)	$ (4,525)	$ 218	$ (14,051)
Pension Plans (The Pension Plan, Excess Pension Plan and SERP) [Member]
Defined Benefit Plan Disclosure [Line Items]
Net actuarial gain (loss)		1,000	(14,716)
Amortization of prior service credit		(2,063)	(2,063)
Amortization of net actuarial loss		1,845	179
Net (gain) loss reclassified into income		(218)	(1,884)
Income tax (expense) benefit		(362)	5,314
Total changes in other comprehensive income (loss)		420	(11,286)
Other Postretirement Benefit Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Net actuarial gain (loss)		1,056	(2,718)
Amortization of prior service credit		(1,145)	(1,145)
Amortization of net actuarial loss		269	114
Net (gain) loss reclassified into income		(876)	(1,031)
Income tax (expense) benefit		(382)	984
Total changes in other comprehensive income (loss)		$ (202)	$ (2,765)