Bankruptcy Related Disclosures - Reorganization Adjustments, Schedule of Cumulative Effect on Retained Earnings (Details) $ in Thousands	Aug. 31, 2017 USD ($)
Gain on settlement of liabilities subject to compromise
Fresh-Start Adjustment [Line Items]
Retained (deficit) earnings	$ 89,989
Write off of original issue discount and deferred financing costs
Fresh-Start Adjustment [Line Items]
Retained (deficit) earnings	5,412
Backstop and other fees related to the repayment of old debt and issuance of new debt
Fresh-Start Adjustment [Line Items]
Retained (deficit) earnings	10,811
Success fees and key employee incentive plan payments
Fresh-Start Adjustment [Line Items]
Retained (deficit) earnings	(4,601)
Reorganization Adjustments
Fresh-Start Adjustment [Line Items]
Retained (deficit) earnings	$ 69,165