REORGANIZATION ITEMS, NET (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Restructuring Cost and Reserve [Line Items]
Write-off of deferred long-term debt fees									$ 67,079
Write-off of original issue discount on debt subject to compromise									131,100
Debtor-in-possession refinancing costs									10,546
Loss on Liabilities subject to compromise settlement									275
Professional fees and other bankruptcy related costs									147,119
Reorganization items, net	$ 42,849	$ 52,475	$ 68,740	$ 192,055	$ 0	$ 0	$ 0	$ 0	356,119	$ 0	$ 0
Reorganization items unpaid	$ 47,500								47,500
Draws on credit facilities									143,332	$ 100,000	$ 100,000
DIP Facility
Restructuring Cost and Reserve [Line Items]
Debtor-in-possession refinancing costs									6,700
Draws on credit facilities									$ 125,000