SUPPLEMENTAL CASH FLOW INFORMATION (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
SUPPLEMENTAL CASH FLOW INFORMATION [Abstract]
Interest (exclusive of amount capitalized)	$ 136,123	$ 163,593
Income taxes	46,271	64,539
Accrued liabilities for purchases of property, plant & equipment	11,941	5,777
Liabilities assumed	2,645	24,881
Fair value of noncash assets and liabilities exchanged	20,000	4,914
Fair value of equity consideration	$ 0	$ 45,185