EMPLOYEE BENEFIT PLANS (Pre-tax Amounts in AOCI Not Yet Recognized as Components of Net Periodic Costs) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Prior service (costs) credits	$ (92)	$ (103)
Net actuarial (loss) gain	(16,419)	(8,306)
Total	(16,511)	(8,409)
Post Retirement Medical Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Prior service (costs) credits	860	0
Net actuarial (loss) gain	1,126	(528)
Total	$ 1,986	$ (528)