FRESH START ACCOUNTING - Liabilities Subject to Compromise (Details) $ in Thousands	Feb. 28, 2017 USD ($)
Revaluation of Liabilities
Fresh-Start Adjustment [Line Items]
Accrued interest	$ 35,182
Liabilities subject to compromise of the Predecessor Company	1,110,182
Cash payment to senior noteholders	(100,000)
Issuance of 2022 Second Lien Notes to former holders of the senior notes	(225,000)
Gain on settlement of liabilities subject to compromise	230,445
Common Stock \| Revaluation of Liabilities
Fresh-Start Adjustment [Line Items]
Equity fair value adjustments	(539,089)
Warrant
Fresh-Start Adjustment [Line Items]
Equity fair value adjustments	$ (15,648)
Convertible Debt \| 1 ¾% Senior Convertible Notes due 2017
Fresh-Start Adjustment [Line Items]
Interest rate	1.75%
Convertible Debt \| 1 ¾% Senior Convertible Notes due 2017 \| Revaluation of Liabilities
Fresh-Start Adjustment [Line Items]
Liabilities subject to compromise	$ 300,000
Senior Notes \| 7 ½% Senior Notes due 2022
Fresh-Start Adjustment [Line Items]
Interest rate	7.50%
Senior Notes \| 7 ½% Senior Notes due 2022 \| Revaluation of Liabilities
Fresh-Start Adjustment [Line Items]
Liabilities subject to compromise	$ 775,000

Fresh-Start Adjustment, Increase (Decrease), Common Stock Issued To Satisfy Debt

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Fresh-Start Adjustment, Increase (Decrease), Gain From Settlement Of Liabilities Subject To Compromise

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Fresh-Start Adjustment, Increase (Decrease), Issuance Of Second Lien Notes To Former Holders Of The Senior Notes

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Fresh-Start Adjustment, Increase (Decrease), Payment To Senior Noteholders

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Liabilities Subject to Compromise, Accrued Interest Payable

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Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
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Total amount of liabilities subject to compromise.

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Reference 1: 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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-Publisher FASB
-Name Accounting Standards Codification
-Topic 852
-SubTopic 10
-Section 45
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=64805424&loc=d3e55717-112764

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-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=6918054&loc=d3e56015-112765

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