ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Details 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Amounts reclassified from accumulated other comprehensive income
Tax Benefit	$ (4,016)	$ (4,489)
Amount reclassified from accumulated comprehensive income
Amounts reclassified from accumulated other comprehensive income
Prior Service Costs	840
Actuarial Losses	(2,348)
Total Before Tax	(1,508)
Tax Benefit	595
Net of Tax	$ (913)