LIABILITIES FOR DISPOSITIONS AND DISCONTINUED OPERATIONS Analysis of Activity (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended	12 Months Ended
	Sep. 30, 2013	Dec. 31, 2012
Accrual for Environmental Loss Contingencies [Roll Forward]
Balance, beginning of period	$ 81,695	$ 90,824
Expenditures charged to liabilities	(6,411)	(9,926)
Increase to liabilities	287	797
Balance, end of period	75,571	81,695
Less: Current portion	(8,446)	(8,105)
Non-current portion	$ 67,125	$ 73,590