Fresh Start Accounting - Summary of Changes in Cash and Cash Equivalents (Details) - USD ($) $ in Thousands			8 Months Ended
		May 04, 2017	Dec. 31, 2017
Changes in cash and cash equivalents			$ (21,309)
Reorganization Adjustments [Member]
Payment on the Predecessor's revolving credit facility		$ (24,799)
Payment to holders of the Notes	[1]	(16,446)
Payment of fees related to Emergence Credit Facility		(8,575)
Funding of the professional fees escrow account		(7,411)
Payment of professional fees		(4,295)
Other		(1,384)
Changes in cash and cash equivalents		$ (62,910)

[1] The total cash settlement to the holders of the Notes was approximately $24.6 million, of which $16.4 million was paid upon emergence and $8.2 million was paid post-emergence and is reflected in accrued liabilities in the above condensed consolidated balance sheet.