EQUITY AOCI (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
BALANCE		$ (106,532)	$ 78,641	$ 277,182
Foreign exchange loss on intercompany loans	[1]			(88,997)
Foreign exchange gain on intercompany loans	[1]	11,326	8,848
Foreign exchange loss on the Series B Preferred Shares		33,444	(19,412)
Reclassified to net income upon sale of subsidiaries				(22,417)
Currency translation adjustment		10,511	12,016	(2,100)
Change in the fair value of hedging instruments		(1,942)	(5,447)	(1,418)
Changes in fair value reclassified to interest expense and other non-operating income, net			2,416	579
Net other comprehensive income		56,550	(1,579)	(72,800)
BALANCE		(5,770)	(106,532)	78,641
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		2,764
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]	447
Currency translation adjustment, net
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
BALANCE		(239,537)	(240,989)	(169,028)
Foreign exchange loss on intercompany loans	[1]			(88,997)
Foreign exchange gain on intercompany loans	[1]	11,326	8,848
Foreign exchange loss on the Series B Preferred Shares		33,444	(19,412)
Reclassified to net income upon sale of subsidiaries				(19,136)
Currency translation adjustment		10,511	12,016	(2,100)
Change in the fair value of hedging instruments		0	0	0
Changes in fair value reclassified to interest expense and other non-operating income, net			0	0
Net other comprehensive income		55,281	1,452	(71,961)
BALANCE		(184,256)	(239,537)	(240,989)
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		(4,451)	(1,420)	(581)
Foreign exchange loss on intercompany loans	[1]			0
Foreign exchange gain on intercompany loans	[1]	0	0
Foreign exchange loss on the Series B Preferred Shares		0	0
Reclassified to net income upon sale of subsidiaries				0
Currency translation adjustment		0	0	0
Change in the fair value of hedging instruments		(1,942)	(5,447)	(1,418)
Changes in fair value reclassified to interest expense and other non-operating income, net			2,416	579
Net other comprehensive income		1,269	(3,031)	(839)
BALANCE		(3,182)	(4,451)	(1,420)
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		2,764
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]	447
TOTAL Accumulated Other Comprehensive Loss
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
BALANCE		(243,988)	(242,409)	(169,609)
Reclassified to net income upon sale of subsidiaries				(19,136)
BALANCE		$ (187,438)	$ (243,988)	$ (242,409)

[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) We expect to repay the 2018 Euro Term Loan with the expected proceeds from the Divestment Transaction and have dedesignated the related hedging instruments during the third quarter of 2017. Dedesignation precludes recognition of the effective portion of the changes in fair value within accumulated other comprehensive income / loss. All related changes in fair value and those previously recognized in accumulated other comprehensive income / loss are recognized in other non-operating income, net in our consolidated statements of operations and comprehensive income / loss. See Note 14, "Financial Instruments and Fair Value Measurements".