ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Details 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2014		Jun. 30, 2013		Jun. 30, 2014		Jun. 30, 2013
Amortization of pension and other post-retirement liability adjustments
Tax Benefit (expense)	$ 6,712		$ 5,209		$ 11,178		$ 9,225
Net of Tax					(19,032)		(13,962)
Amounts reclassified from accumulated other comprehensive income (loss)
Amortization of pension and other post-retirement liability adjustments
Prior Service Costs	(558)	[1]	(840)	[1]	(1,116)	[1]	(1,680)	[1]
Actuarial Losses	656	[1]	2,348	[1]	1,312	[1]	4,696	[1]
Total Before Tax	98		1,508		196		3,016
Tax Benefit (expense)	(34)		(595)		(69)		(1,147)
Net of Tax	$ 64		$ 913		$ 127		$ 1,869

[1] These accumulated other comprehensive income (loss) components are included in the computation of net periodic pension costs. See Note 10 for additional information.