PROPERTY, PLANT AND EQUIPMENT (Narrative) (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended	12 Months Ended	3 Months Ended	9 Months Ended
Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011	Sep. 30, 2012 Property, Plant And Equipment [Member]	Sep. 30, 2011 Property, Plant And Equipment [Member]	Sep. 30, 2012 Property, Plant And Equipment [Member]	Sep. 30, 2011 Property, Plant And Equipment [Member]
Pieces of land acquired			4
Useful Life	50 years
Depreciation and amortization	$ 5,704	$ 5,689		$ 1,800	$ 2,000	$ 4,100	$ 4,000

The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585

Name:	us-gaap_DepreciationDepletionAndAmortization
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration