EQUITY (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019	Dec. 31, 2018	Apr. 30, 2012
Class of Stock [Line Items]
Preferred stock, shares authorized	5,000,000		5,000,000
Number of shares of Class B common stock to Class A common stock	1
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 291,290	$ 222,602	$ 342,218	$ 229,321
Stock-based compensation	939	1,003
Share issuance, stock-based compensation	0	0
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation	8	299
Net income / (loss)	8,970	11,751
Unrealized gain / (loss) on derivative instruments (Note 13)	220	(3,331)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	(61,049)	(15,843)
Currency translation adjustment	$ (61,049)	$ (15,843)
T W Investor [Member]
Class of Stock [Line Items]
Ownership percentage, related party	63.80%
Common stock, shares outstanding	100,900,000
Time Warner [Member]
Class of Stock [Line Items]
Ownership percentage, related party	44.10%
Series A Preferred Stock [Member]
Class of Stock [Line Items]
Preferred stock, shares issued	1		1
Preferred stock, shares outstanding	1		1
Series B Preferred Shares
Class of Stock [Line Items]
Preferred stock, shares issued			200,000
Preferred stock, shares outstanding	200,000		200,000
Convertible Preferred Stock, Estimated Common Stock Issued in Future Conversion	111,100,000
Class A Common Stock [Member]
Class of Stock [Line Items]
Common stock, shares authorized	440,000,000		440,000,000
Common stock, shares issued	254,300,000		253,600,000
Class A Common Stock [Member] | T W Investor [Member]
Class of Stock [Line Items]
Incremental common shares attributable to dilutive effect of conversion of preferred stock (in shares)	11,211,449	11,211,449
Class B Common Stock [Member]
Class of Stock [Line Items]
Common stock, shares authorized	15,000,000		15,000,000
Common stock, shares issued	0		0
Common stock, shares outstanding	0		0
Minimum [Member] | Class A Common Stock [Member] | T W Investor [Member]
Class of Stock [Line Items]
Ownership percentage, related party					49.90%
Preferred Stock [Member] | Preferred Class A [Member]
Class of Stock [Line Items]
Preferred stock, shares outstanding	1	1	1	1
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 0	$ 0	$ 0	$ 0
Common Stock [Member] | Class A Common Stock [Member]
Class of Stock [Line Items]
Common stock, shares outstanding	254,298,255	253,279,975	253,607,026	252,853,554
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 20,343	$ 20,262	$ 20,288	$ 20,228
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	691,229	426,421
Share issuance, stock-based compensation	$ (55)	$ (34)
Common Stock [Member] | Class B Common Stock [Member]
Class of Stock [Line Items]
Common stock, shares outstanding	0	0	0	0
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 0	$ 0	$ 0	$ 0
Additional Paid-In Capital [Member]
Class of Stock [Line Items]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	2,008,151	2,004,188	2,007,275	2,003,518
Stock-based compensation	939	1,003
Share issuance, stock-based compensation	(55)	(34)
Share-based Payment Arrangement, Decrease for Tax Withholding Obligation	8	299
Retained Earnings [Member]
Class of Stock [Line Items]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	(1,449,901)	(1,566,318)	(1,458,942)	(1,578,076)
Net income / (loss)	9,041	11,758
Accumulated Other Comprehensive Income [Member]
Class of Stock [Line Items]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	(287,919)	(235,961)	(226,916)	(216,650)
Unrealized gain / (loss) on derivative instruments (Note 13)	220	(3,331)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	(61,223)	(15,980)
Noncontrolling Interest [Member]
Class of Stock [Line Items]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	616	431	$ 513	$ 301
Net income / (loss)	(71)	(7)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	$ 174	$ 137