FRESH START ACCOUNTING (Narrative) (Details) $ in Thousands	May 31, 2018 USD ($)
Fresh-Start Adjustment [Line Items]
Enterprise value	$ 524,596
Minimum
Fresh-Start Adjustment [Line Items]
Enterprise value	450,000
Maximum
Fresh-Start Adjustment [Line Items]
Enterprise value	550,000
Weighted Average
Fresh-Start Adjustment [Line Items]
Enterprise value	$ 500,000

Amount of reorganization value related to present value of discounted cash flows of the emerging entity. Reorganization value is the amount attributed to the reconstituted entity, as well as the expected net realizable value of those assets that will be disposed before reconstitution occurs.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 852
-SubTopic 10
-Section 05
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=49179835&loc=d3e54813-112758

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 852
-SubTopic 10
-Section 55
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=84165509&loc=d3e56239-112766

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