FRESH START ACCOUNTING (Reconciliation of the Enterprise Value to the Reorganization Value of the Successor Assets) (Details) - USD ($) $ in Thousands	5 Months Ended	7 Months Ended	12 Months Ended
	May 31, 2018	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Jun. 04, 2018	Jun. 01, 2018
Fresh Start Accounting [Abstract]
Financial Designation, Predecessor and Successor [Fixed List]	Predecessor	Successor	Successor	Successor	Predecessor	Predecessor
Enterprise value							$ 524,596
Plus: Cash and cash equivalents	$ 35,020	$ 6,313	$ 28,968	$ 6,313			21,082	$ 21,082
Plus: Other working capital liabilities							36,787
Plus: Other long-term liabilities	$ 1,021	$ 1,036	$ 1,770	$ 1,036			121,041	$ 1,021
Reorganization value of Successor assets							$ 703,506