Fresh Start Accounting - Summary of Changes in Cash and Cash Equivalents (Parenthetical) (Details) - Reorganization Adjustments [Member] $ in Thousands	May 04, 2017 USD ($)
Total cash settlement to the holders of the notes	$ 16,446	[1]
Paid Upon Emergence [Member]
Total cash settlement to the holders of the notes	16,400
Paid Post-emergence [Member] | Accrued Liabilities [Member]
Total cash settlement to the holders of the notes	8,200
Notes [Member]
Total cash settlement to the holders of the notes	$ 24,600

[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.