Emergence from Voluntary Reorganization under Chapter 11 / Fresh Start Accounting Reorganization Adjustments - Sources and Uses of Cash (Details) - USD ($) $ in Thousands		3 Months Ended	4 Months Ended	5 Months Ended
	May 30, 2020	Sep. 30, 2020	Sep. 30, 2020	May 31, 2020
Reorganization Adjustments - Sources and Uses of Cash [Abstract]
Cash Proceeds from Convertible Notes	$ 120,187
Cash Proceeds from Senior Secured Notes	75,000
Payment to fund claims reserve	(950)
Payment to escrow remaining professional fees	(10,771)
Payment of legal and professional fees	(9,468)	$ (2,522)	$ (3,263)	$ (26,038)
Payment in full to extinguish DIP facility	(4,000)
Payment of accrued interest on DIP Facility	(55)
Payment of DIP Facility fees	(177)	$ 0	$ 0	$ 513
Payment in full to extinguish PrePetition Term Loan	(175,000)
Payment of accrued interest on PrePetition Term Loan	(3,677)
Payment of prepayment premium on PrePetition Term Loan	(1,750)
Net change in cash and cash equivalents, net	$ (10,661)