EMPLOYEE BENEFIT PLANS (Pre-tax Amounts Recognized in Other Comprehensive Income (Loss)) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Prior service costs (credits)	$ 0	$ 0	$ 0
Net actuarial loss (gain)	8,235	6,817	661
Amortization of loss	(432)	(41)	(67)
Total changes in other comprehensive loss (income)	7,803	6,776	594
Post Retirement Medical Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Prior service costs (credits)	(860)	0	0
Net actuarial loss (gain)	(1,654)	(189)	738
Amortization of loss	0	0	0
Total changes in other comprehensive loss (income)	$ (2,514)	$ (189)	$ 738