ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Details 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Amounts reclassified from accumulated other comprehensive income
Tax Benefit	$ (5,209)	$ (7,373)	$ (9,225)	$ (11,862)
Amount reclassified from accumulated comprehensive income
Amounts reclassified from accumulated other comprehensive income
Prior Service Costs	840		1,680
Actuarial Losses	(2,348)		(4,696)
Total Before Tax	(1,508)		(3,016)
Tax Benefit	595		1,190
Net of Tax	$ (913)		$ (1,826)