INVENTORIES AND SUPPLIES (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Inventory Disclosure [Abstract]
Oil and oil products	$ 77,735	$ 1,231
Supplies and drums	63,540	49,976
Solvent and solutions	9,398	433
Other	20,768	4,602
Total inventories and supplies	$ 171,441	$ 56,242