RESTRICTED CASH (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Restricted Cash and Cash Equivalents Items [Line Items]
Cash and cash equivalents	$ 42,864	$ 5,580
Restricted cash	43,297	22,006
Prepaid Expenses and Other
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	116	112
Other Noncurrent Assets
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	317	102
Continuing Operations [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Cash and cash equivalents	42,864	5,580
Discontinued Operations
Restricted Cash and Cash Equivalents Items [Line Items]
Cash and cash equivalents	0	15,460
Discontinued Operations | Other Noncurrent Assets
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	0	569
Discontinued Operations | Current Assets [Member]
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	$ 0	$ 183