ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Details 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended			9 Months Ended
	Sep. 30, 2013		Sep. 30, 2012	Sep. 30, 2013		Sep. 30, 2012
Amortization of pension and other post-retirement liability adjustments
Tax Benefit (expense)	$ (4,793)		$ (6,904)	$ (14,018)		$ (18,766)
Amounts reclassified from accumulated other comprehensive income (loss)
Amortization of pension and other post-retirement liability adjustments
Prior Service Costs	840	[1]		2,520	[1]
Actuarial Losses	(2,348)	[1]		(7,044)	[1]
Total Before Tax	(1,508)			(4,524)
Tax Benefit (expense)	595			1,785
Net of Tax	$ (913)			$ (2,739)

[1] These accumulated other comprehensive income (loss) components are included in the computation of net period pension costs. See Note 8 for additional information.