The estimated enterprise value of the entity on the effective date, as approved by the Bankruptcy Court.

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Represents the number of shares of common stock authorized outstanding and granted after LTIP shares granted.

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No definition available.

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Exercise price per share or per unit of warrants or rights outstanding.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Number of securities into which each warrant or right may be converted. For example, but not limited to, each warrant may be converted into two shares.

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No definition available.

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Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

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Face amount or stated value per share of common stock.

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

Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Fair value of the entity's equity.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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Fair value portion of warrants not settleable in cash classified as equity.

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Fresh Start Accounting - Enterprise to FV (Details) - USD ($) $ / shares in Units, $ in Thousands	Oct. 21, 2016	Dec. 31, 2016	Oct. 20, 2016
Fresh start accounting adjustments
Plus: Cash and cash equivalents	$ 76,540	$ 76,838	$ 76,540
Common Stock, Par or Stated Value Per Share		$ 0.01
Fresh Start Adjustments
Fresh start accounting adjustments
Enterprise value	600,000
Plus: Cash and cash equivalents	76,540
Less: Fair value of debt	(128,059)
Less Fair value of warrants	(37,329)
Fair value of stock on the Effective Date	$ 511,152
Total shares issuable under the Plan	25,000,000
Restricted shares granted under 2016 LTIP at October 21, 2016	686,000
Total shares	25,686,000
Common Stock, Par or Stated Value Per Share	$ 19.90
Fresh Start Adjustments \| Warrants \| Third Lien Notes
Fresh start accounting adjustments
Warrants to acquire common stock shares (in shares)	4,411,765
Aggregate shares of common stock (in shares)	4,411,765
Warrant strike price (in dollars per share)	$ 24.00
Fresh Start Adjustments \| Warrant B \| Unsecured Note
Fresh start accounting adjustments
Warrants to acquire common stock shares (in shares)	2,213,789
Aggregate shares of common stock (in shares)	2,213,789
Warrant strike price (in dollars per share)	$ 46.00