FRESH-START ACCOUNTING - Liabilities subject to compromise (Details) - USD ($) $ in Thousands	Oct. 01, 2019	Aug. 02, 2019
Liabilities Subject to Compromise
Liabilities subject to compromise	$ 625,005
Discount on shares issued per the Senior Noteholder Subscription Rights Offering	(67,840)
Issuance of common stock to Class 4 claimholders	(75,388)
Gain on settlement of liabilities subject to compromise	481,777
Gain on settlement of liabilities subject to compromise	$ 481,777
6.75% senior notes due 2025
Liabilities Subject to Compromise
Interest rate (as a percent)	6.75%	6.75%
Liabilities subject to compromise	$ 625,005
Reorganization Adjustments
Liabilities Subject to Compromise
Liabilities subject to compromise	$ (625,005)