Emergence from Voluntary Reorganization under Chapter 11 / Fresh Start Accounting Reorganization Adjustments - Successor Additional Paid-in Capital (Details) - USD ($) $ in Thousands	May 30, 2020	May 31, 2020
Fresh-Start Adjustment [Line Items]
Increase (decrease) Additional Paid in Capital, Successor	$ 0	$ 138,958
Reorganization Adjustments [Member]
Fresh-Start Adjustment [Line Items]
Increase (decrease) Additional Paid in Capital, Successor	98,413
Convertible Debt [Member] | Equity Component [Member]
Fresh-Start Adjustment [Line Items]
Recogniation of equity component of Convertible Notes	82,546
Recognition of debt issuance costs of Convertible Notes equity component	$ (2,216)