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FRESH-START ACCOUNTING-Effect of reorganization adj cumulative (Details) $ in Thousands		8 Months Ended
	Sep. 09, 2016 USD ($)	Sep. 09, 2016 USD ($)
Cumulative effect of the reorganization adjustments
Gain on settlement of Liabilities subject to compromise	$ 1,368,908
Predecessor
Cumulative effect of the reorganization adjustments
Gain on settlement of Liabilities subject to compromise		$ 1,368,908
Predecessor | Reorganization Adjustments
Cumulative effect of the reorganization adjustments
Accrued reorganization items	(10,261)	(10,261)
Cancellation of Predecessor Company equity	3,254,642
Net impact to retained earnings (accumulated deficit)	$ 4,613,289	$ 4,613,289

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Amount of net gain (loss) on settlement of other claims for entities in bankruptcy, reported as a reorganization item.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 852
-SubTopic 10
-Section 45
-Paragraph 9
-URI http://asc.fasb.org/extlink&oid=64805424&loc=d3e55730-112764

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 852
-SubTopic 10
-Section 55
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=84165509&loc=d3e56145-112766

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Amount of fresh-start adjustment to retained earnings or deficit.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 852
-SubTopic 10
-Section 55
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=84165509&loc=d3e56426-112766

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 852
-SubTopic 10
-Section 45
-Paragraph 21
-URI http://asc.fasb.org/extlink&oid=64805424&loc=d3e55811-112764

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