Emergence from Voluntary Reorganization under Chapter 11 Proceedings Emergence from Voluntary Reorganization under Chapter 11 Proceedings (Details) - USD ($) $ in Thousands		3 Months Ended
	Apr. 15, 2016	Mar. 31, 2016	Apr. 22, 2016
Plan of Reorganization [Abstract]
Debt and Accrued interest			$ 905,629
Debtor-in-Possession Financing, Amount Arranged			$ 75,000
Plan of Reogranization, percentage of common stock lenders to receive net of backstop fee			88.50%
Plan of Reorganization, backstop fee			7.50%
Plan of Reorganization, Percentage of Common Stock existing equity holders to retain			4.00%
Plan or Reorganization, warrants existing equity holders			30.00%
Plan of Reorganization, Percentage of Common Stock Registration Rights Holder to receive			5.00%
Net Proceeds from Texegy Deal	$ 46,900
Line of Credit [Member] | New Credit Facility [Member]
Plan of Reorganization [Abstract]
Line of Credit Facility, Current Borrowing Capacity			$ 320,000
Predecessor [Member]
Plan of Reorganization [Abstract]
Contractual Interest on senior notes subject to compromise		$ 17,320
Predecessor [Member] | Senior Notes [Member]
Plan of Reorganization [Abstract]
Contractual Interest on senior notes subject to compromise		$ 17,320