BENEFIT PLANS (Narrative) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013 ShareBasedCompensationPlan	Dec. 31, 2012	Dec. 31, 2011
Defined Benefit Plan Disclosure [Line Items]
Number Of Defined Contribution Plans	3
Projected benefit obligation	$ 911,700,000	$ 991,338,000	$ 867,374,000
Expected return on plan assets	7.50%
Employer contribution	4,855,000	4,509,000	4,906,000
Estimated employer contribution in 2014	15,539,000
Percentage of contributions to individual multiemployer pension funds	5.00%	5.00%	5.00%
Percentage of domestic hourly labor force covered by collective bargaining agreements	18.00%
Percentage of domestic hourly labor force covered by collective bargaining agreements expiring in 2014	12.00%
Accrued costs for supplemental retirement plan	1,328,000	1,243,000
Assets in the Chemicals Hourly Plan	91,803,000
Amount plan assets of Chemical Plan exceeds accumulated benefit obligation	3,919,000
Amount plan assets of Chemical Plan exceeds projected benefit obligation	3,056,000
Projected weighted average rate of compensation	3.50%
Healthcare cost trend rate assumed for next year	7.50%
Rate to which the cost trend rate gradually declines	5.00%
Year that the rate reaches the rate it is assumed to maintain	2019
Expense recognized related to defined contribution plans	21,416,000	18,460,000	16,057,000
Mexico [Member]
Defined Benefit Plan Disclosure [Line Items]
Number of employees	243
Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Target allocation ranges for plan assets, minimum	50.00%
Target allocation ranges for plan assets, maximum	77.00%
Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Target allocation ranges for plan assets, minimum	15.00%
Target allocation ranges for plan assets, maximum	27.00%
Specialty Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Target allocation ranges for plan assets, minimum	10.00%
Target allocation ranges for plan assets, maximum	20.00%
Cash Reserves [Member]
Defined Benefit Plan Disclosure [Line Items]
Target allocation ranges for plan assets, minimum	0.00%
Target allocation ranges for plan assets, maximum	5.00%
Pension Plans, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Number of defined benefit plans	3
Normal retirement age	65
Pension expense	(7,600,000)
One-time curtailment loss related to discontinued operations	(855,000)	0	0
Accumulated benefit obligation	891,394,000	928,059,000
Estimated net actuarial loss expected to be amortized from accumulated other comprehensive income	9,983,000
Estimated prior service cost that will be amortized from accumulated other comprehensive income	187,000
Expected return on plan assets	7.50%	8.00%	8.00%
Employer contribution	0	0	0
Estimated employer contribution in 2014	4,100,000
Discount rate	4.91%	4.19%	4.96%
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase	3.50%	3.50%	3.50%
Pension Plans, Defined Benefit | Discontinued Operations [Member]
Defined Benefit Plan Disclosure [Line Items]
Pension expense	(800,000)
Non Qualified Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Number of unfunded, nonqualified pension plans	3
Projected benefit obligation	93,600,000	92,322,000
Accumulated benefit obligation	89,289,000	88,643,000
Employer contribution	4,855,000	4,509,000	4,906,000
Estimated employer contribution in 2014	11,400,000
Other Postretirement Benefit Plans, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Normal retirement age	65
Projected benefit obligation	92,888,000	113,500,000	134,926,000
Estimated net actuarial loss expected to be amortized from accumulated other comprehensive income	634,000
Estimated prior service cost that will be amortized from accumulated other comprehensive income	(4,853,000)
Estimated employer contribution in 2014	$ 9,431,000
Early retirement age	62
Discount rate	4.10%	3.30%	4.60%
Healthcare cost trend rate assumed for next year	7.50%	8.00%	7.50%
Rate to which the cost trend rate gradually declines	5.00%	5.00%	5.00%
Year that the rate reaches the rate it is assumed to maintain	2019	2019	2017
Minimum
Defined Benefit Plan Disclosure [Line Items]
Discount rate	3.80%	3.05%
Maximum
Defined Benefit Plan Disclosure [Line Items]
Discount rate	5.15%	4.35%