GOODWILL AND INTANGIBLE ASSETS Goodwill (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Dec. 31, 2012
Goodwill [Roll Forward]
Gross Balance, December 31, 2012	$ 1,273,391
Accumulated Impairment Losses, Beginning Balance	(436,853)
Additions/ Adjustments	0
Impairment Charge	0
Foreign Currency	(37,330)
Accumulated Impairment Losses, Ending Balance	(436,853)
Gross Balance, March 31, 2013	1,236,061
Goodwill, Net Balance	799,208	836,538
BULGARIA [Member]
Goodwill [Roll Forward]
Gross Balance, December 31, 2012	177,473
Accumulated Impairment Losses, Beginning Balance	(127,826)
Additions/ Adjustments	0
Impairment Charge	0
Foreign Currency	(1,464)
Accumulated Impairment Losses, Ending Balance	(127,826)
Gross Balance, March 31, 2013	176,009
Goodwill, Net Balance	48,183	49,647
CROATIA [Member]
Goodwill [Roll Forward]
Gross Balance, December 31, 2012	11,127
Accumulated Impairment Losses, Beginning Balance	(10,454)
Additions/ Adjustments	0
Impairment Charge	0
Foreign Currency	(22)
Accumulated Impairment Losses, Ending Balance	(10,454)
Gross Balance, March 31, 2013	11,105
Goodwill, Net Balance	651	673
CZECH REPUBLIC [Member]
Goodwill [Roll Forward]
Gross Balance, December 31, 2012	902,388
Accumulated Impairment Losses, Beginning Balance	(287,545)
Additions/ Adjustments	0
Impairment Charge	0
Foreign Currency	(31,161)
Accumulated Impairment Losses, Ending Balance	(287,545)
Gross Balance, March 31, 2013	871,227
Goodwill, Net Balance	583,682	614,843
ROMANIA [Member]
Goodwill [Roll Forward]
Gross Balance, December 31, 2012	106,028
Accumulated Impairment Losses, Beginning Balance	(11,028)
Additions/ Adjustments	0
Impairment Charge	0
Foreign Currency	(2,431)
Accumulated Impairment Losses, Ending Balance	(11,028)
Gross Balance, March 31, 2013	103,597
Goodwill, Net Balance	92,569	95,000
SLOVAK REPUBLIC [Member]
Goodwill [Roll Forward]
Gross Balance, December 31, 2012	57,693
Accumulated Impairment Losses, Beginning Balance	0
Additions/ Adjustments	0
Impairment Charge	0
Foreign Currency	(1,701)
Accumulated Impairment Losses, Ending Balance	0
Gross Balance, March 31, 2013	55,992
Goodwill, Net Balance	55,992	57,693
SLOVENIA [Member]
Goodwill [Roll Forward]
Gross Balance, December 31, 2012	18,682
Accumulated Impairment Losses, Beginning Balance	0
Additions/ Adjustments	0
Impairment Charge	0
Foreign Currency	(551)
Accumulated Impairment Losses, Ending Balance	0
Gross Balance, March 31, 2013	18,131
Goodwill, Net Balance	$ 18,131	$ 18,682