BUSINESS COMBINATIONS (2013 Acquisitions Narrative) (Details) $ in Thousands	Sep. 13, 2013 USD ($)
Evergreen Oil, Inc.
Business Acquisition [Line Items]
Purchase price	$ 56,318

Amount recognized for assets, including goodwill, in excess of (less than) the aggregate liabilities assumed.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=56956791&loc=d3e4845-128472

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant