EMPLOYEE BENEFIT PLANS (Details 7) - Pension Plans, Defined Benefit [Member]	Dec. 31, 2016	Dec. 31, 2015
ASSET CATEGORY:
Asset allocations	100.00%	100.00%
Cash and Cash Equivalents [Member]
ASSET CATEGORY:
Asset allocations	8.00%	6.00%
Domestic equities [Member]
ASSET CATEGORY:
Asset allocations	10.00%	7.00%
Mutual funds/ETFs [Member]
ASSET CATEGORY:
Asset allocations	76.00%	75.00%
International equities [Member]
ASSET CATEGORY:
Asset allocations	1.00%	1.00%
Corporate bonds [Member]
ASSET CATEGORY:
Asset allocations	5.00%	11.00%