FRESH START ACCOUNTING - Schedules of Reorganization Items, Net (Details) - USD ($) $ in Thousands		3 Months Ended		4 Months Ended	5 Months Ended	9 Months Ended
	May 01, 2019	Sep. 30, 2019	Sep. 30, 2018	May 01, 2019	Sep. 30, 2019	Sep. 30, 2019
Reorganizations [Abstract]
Write-off of deferred loans costs				$ 0	$ 0	$ (67,079)
Write-off of original issue discount				0	0	(131,100)
Debtor-in-possession refinancing costs				0	0	(10,546)
Professional fees and other bankruptcy related costs		$ 0	$ (52,475)	(157,487)	0	(104,545)
Net gain on settlement of Liabilities subject to compromise	$ 7,192,374			7,192,374	0	0
Impact of fresh start adjustments				2,430,944	0	0
Other items, net				(4,005)	0	0
Reorganization items, net		0	(52,475)	9,461,826	0	(313,270)
Cash payments for Reorganization items, net		$ 5,219	$ 46,338	$ 183,291	$ 18,268	$ 52,213