EMPLOYEE BENEFITS (AOCI) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Unrecognized prior service cost	$ 0	$ 0
Unrecognized actuarial loss	52,936	56,943
Total amounts recognized in AOCI	52,936	56,943
Anticipated amortization of net actuarial losses in next fiscal year	3,967
Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Unrecognized prior service cost	0	0
Unrecognized actuarial loss	20,806	32,979
Total amounts recognized in AOCI	20,806	$ 32,979
Anticipated amortization of net actuarial losses in next fiscal year	$ 1,518