Chapter 11 Proceedings Chapter 11 Proceedings (Details)		8 Months Ended
	May 12, 2016 subsidiary	Sep. 12, 2016 USD ($) board_member shares	Sep. 30, 2016 USD ($) shares	Aug. 11, 2016	May 11, 2016	May 10, 2016 USD ($)
Debt Instrument [Line Items]
Number of Subsidiaries Filing Chapter 11 Bankruptcy | subsidiary	8
Number Of Board Members Replaced | board_member		3
Plan of Reorganization, Cash Reserve		$ 2,700,000
Plan of Reorganization, DIP Fees		100,000
Percentage of Common Stock Holders agreed to RSA			86.00%
Preconfirmation, Senior Notes		1,075,000,000
Debtor Reorganization Items, Legal and Advisory Professional Fees		7,200,000
Liabilities Subject to Compromise, Debt and Accrued Interest		1,122,000,000
Backstop Commitment Agreement, Backstop Commitment		6,022,000				$ 50,000,000
Percentage of claims responsible for related to pre-petition revolving credit agreement				100.00%
Rights Offering, Rights Offering Amount		$ 49,943,000
Plan of Reorganization, Senior Notes and Unsecured Claims Common Stock Exchanged | shares			6,069,074
Plan of Reorganization, Rights Offering Issuance of Common Stock | shares		7,633,588
Plan of Reorganization, Percentage of Common Stock to holders of claims arising under the Senior Notes, general unsecured claims and to the Backstop Parties		51.00%
Plan of Reorganization, percentage of commons stock lenders to receive net of backstop fee		41.00%
Plan of Reorganization, Backstop Parties Common Shares Received | shares		472,902
Plan Of Reorganization, Backstop Parties Common Shares Received, Percent Of Common Stock		3.00%
Plan of Reorganization, CS authorized for Disputed General Unsecured Claims and Non-Accredited Investor Holders of Senior Notes | shares		816,454
Plan of Reorganization, Common Stock reserved for Issuance of Management Incentive Plan | shares		749,600
Plan of Reorganization, Line of Credit Facility, Initial Borrowing		$ 75,400,000	$ 75,400,000
Plan of Reorganization, Escrow Account for Professional Fees		14,575,000
DIP Facility [Member]
Debt Instrument [Line Items]
Debtor-in-Possession Financing, Borrowings Outstanding		$ 0
Share-based Compensation Award, Tranche One [Member]
Debt Instrument [Line Items]
Plan Of Reorganization, Shares Authorized, Percent Of Common Stock		5.00%
Share-based Compensation Award, Tranche Two [Member]
Debt Instrument [Line Items]
Plan Of Reorganization, Shares Authorized, Percent Of Common Stock		5.00%
Senior Notes [Member] | 7.25% Senior Notes due 2019
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage					7.25%
Senior Notes [Member] | 8.50% Senior Notes due 2020
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage					8.50%