EQUITY AOCI (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Accumulated Other Comprehensive Income (Loss) [Line Items]
Translation Adjustment Functional to Reporting Currency, Net of Tax		$ (223,648)		$ (207,668)
Accumulated Other Comprehensive Income (Loss), Net of Tax		(235,961)		(216,650)
Unrealized (loss) / gain on derivative instruments (Note 12)		(3,331)	$ 191
Other Comprehensive Income (Loss), Net of Tax		(19,311)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax		371
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax		(15,843)	$ 11,785
Permanent Loans [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss), before Reclassification and Tax	[1]	(612)
Preferred Stock [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss), before Reclassification and Tax		(5,106)
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss), before Reclassification and Tax		(10,262)
AOCI Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Unrealized (loss) / gain on derivative instruments (Note 12)		(3,331)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax		(15,980)
Interest Rate Swap [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax		(12,313)		$ (8,982)
Unrealized (loss) / gain on derivative instruments (Note 12)		3,702
Interest Expense [Member] | Interest Rate Swap [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Derivative Instruments, Loss Reclassified from Accumulated OCI into Income, Effective Portion		$ 371

[1] (1) Represents foreign exchange gains on intercompany loans that are of a long-term investment nature which are reported in the same manner as translation adjustments.