EMPLOYEE BENEFIT PLANS Net Periodic Benefit Cost (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013
Pension [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 378		$ 2,011		$ 3,545		$ 6,441
Interest cost	786		3,953		9,921		12,740
Expected return on plan assets	(1,135)		(5,966)		(14,123)		(19,356)
Amortization of prior service cost	3		322		572		1,032
Amortization of losses	601		4,792		5,942		15,308
Amortization of negative plan amendment					0		0
Net periodic benefit cost	633	[1]	5,112	[1]	5,857	[2]	16,165	[2]
Postretirement [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	3		330		328		828
Interest cost	18		231		423		711
Expected return on plan assets	0		0		0		0
Amortization of prior service cost	0		6		8		19
Amortization of losses	3		98		248		533
Amortization of negative plan amendment					(267)		0
Net periodic benefit cost	24	[1]	665	[1]	740	[2]	2,091	[2]
Income from Discontinued Operations [Member]
Defined Benefit Plan Disclosure [Line Items]
Net periodic benefit cost	$ 3,700				$ 4,000		$ 11,200

[1] Net periodic benefit cost for the three months ended September 30, 2013 includes $3.7 million recorded in “Income from discontinued operations, net” on the Consolidated Statements of Income and Comprehensive Income.

[2] Net periodic benefit cost for the nine months ended September 30, 2014 and September 30, 2013 includes $4.0 million and $11.2 million, respectively, recorded in “Income from discontinued operations, net” on the Consolidated Statements of Income and Comprehensive Income.