BENEFIT PLANS, Amounts Recognized in AOCI, Net of Tax (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Amounts recognized in AOCI, net of tax [Abstract]
Total	$ (3,322)	$ 4,567	$ 9,571
Pension Benefits [Member]
Amounts recognized in AOCI, net of tax [Abstract]
Prior service (credit)/cost	(26)	(5)
Net (gain) loss	(3,517)	4,482
Total	(3,543)	4,477
Post-retirement Benefits [Member]
Amounts recognized in AOCI, net of tax [Abstract]
Prior service (credit)/cost	110	110
Net (gain) loss	111	(20)
Total	$ 221	$ 90