DISCONTINUED OPERATIONS DISCONTINUED OPERATIONS - Additional Details (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on sale of consolidated subsidiaries	$ 14,043	$ 0
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	10,819	$ 0
Discontinued Operations | RTM
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gross proceeds	38,960
Debt assumed by buyer	17,626
Gain on sale of consolidated subsidiaries	14,043
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	$ 10,819