INCOME TAXES (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Sep. 30, 2018
Income Tax Contingency [Line Items]
Deferred tax liability revaluation	$ 23,941
Benefit for income taxes	(24,904)	$ (2,613)
Income (loss) before taxes from continuing operations	(2,073)	4,431
Effective income tax rate reconciliation, change in enacted tax rate, amount of benefit	$ (23,018)	$ (4,421)
Effective income tax rate reconciliation, nondeductible provision (benefit) percent	35.40%	40.80%
Scenario, Forecast [Member]
Income Tax Contingency [Line Items]
Federal statutory income tax rate,percent			24.50%