EQUITY AOCI (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2018		Dec. 31, 2017	Dec. 31, 2016
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
BALANCE		$ (5,770)		$ (106,532)	$ 78,641
Foreign exchange loss on intercompany loans	[1]				8,848
Foreign exchange gain on intercompany loans	[1]	(1,061)		11,326
Foreign exchange gain on the Series B Preferred Shares		(12,527)		33,444	(19,412)
Currency translation adjustment		(9,824)		10,511	12,016
Change in the fair value of hedging instruments		(9,455)		(1,942)	(5,447)
Changes in fair value reclassified to interest expense and other non-operating income, net					2,416
Net other comprehensive loss		(29,212)		56,550	(1,579)
BALANCE		229,321		(5,770)	(106,532)
Interest Expense
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Changes in fair value reclassified to interest expense and other non-operating income, net		2,220		2,764
Other Nonoperating Income, net
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Changes in fair value reclassified to interest expense and other non-operating income, net	[2]	1,435		447
Currency translation adjustment, net
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
BALANCE		(184,256)		(239,537)	(240,989)
Foreign exchange loss on intercompany loans					8,848
Foreign exchange gain on intercompany loans		(1,061)	[1]	11,326
Foreign exchange gain on the Series B Preferred Shares		(12,527)		33,444	(19,412)
Currency translation adjustment		(9,824)		10,511	12,016
Change in the fair value of hedging instruments		0
Net other comprehensive loss		(23,412)		55,281	1,452
BALANCE		(207,668)		(184,256)	(239,537)
Currency translation adjustment, net | Interest Expense
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Changes in fair value reclassified to interest expense and other non-operating income, net		0
Currency translation adjustment, net | Other Nonoperating Income, net
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Changes in fair value reclassified to interest expense and other non-operating income, net	[2]	0
Unrealized (loss) / gain on derivative instruments designated as hedging instruments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
BALANCE		(3,182)		(4,451)	(1,420)
Foreign exchange gain on intercompany loans	[1]	0
Foreign exchange gain on the Series B Preferred Shares		0
Currency translation adjustment		0
Change in the fair value of hedging instruments		(9,455)		(1,942)	(5,447)
Changes in fair value reclassified to interest expense and other non-operating income, net					(2,416)
Net other comprehensive loss		(5,800)		1,269	(3,031)
BALANCE		(8,982)		(3,182)	(4,451)
Unrealized (loss) / gain on derivative instruments designated as hedging instruments | Interest Expense
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Changes in fair value reclassified to interest expense and other non-operating income, net		2,220		2,764
Unrealized (loss) / gain on derivative instruments designated as hedging instruments | Other Nonoperating Income, net
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Changes in fair value reclassified to interest expense and other non-operating income, net	[2]	1,435		447
TOTAL Accumulated Other Comprehensive Loss
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
BALANCE		(187,438)		(243,988)	(242,409)
BALANCE		$ (216,650)		$ (187,438)	$ (243,988)

[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.

[2] (2) Represents amounts reclassified upon the dedesignation of a portion of our hedging instruments (see Note 14, "Financial Instruments and Fair Value Measurements".