GOODWILL AND INTANGIBLE ASSETS Goodwill (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
Sep. 30, 2013	Dec. 31, 2012
Goodwill [Roll Forward]
Gross Balance, December 31, 2012	$ 1,273,391
Accumulated Impairment Losses, Beginning Balance	(436,853)
Foreign Currency	4,515
Accumulated Impairment Losses, Ending Balance	(436,853)
Gross Balance, September 30, 2013	1,277,906
Goodwill (Note 3)	841,053	836,538
BULGARIA [Member]
Goodwill [Roll Forward]
Gross Balance, December 31, 2012	177,473
Accumulated Impairment Losses, Beginning Balance	(127,826)
Foreign Currency	1,170
Accumulated Impairment Losses, Ending Balance	(127,826)
Gross Balance, September 30, 2013	178,643
Goodwill (Note 3)	50,817	49,647
CROATIA [Member]
Goodwill [Roll Forward]
Gross Balance, December 31, 2012	11,127
Accumulated Impairment Losses, Beginning Balance	(10,454)
Foreign Currency	10
Accumulated Impairment Losses, Ending Balance	(10,454)
Gross Balance, September 30, 2013	11,137
Goodwill (Note 3)	683	673
CZECH REPUBLIC [Member]
Goodwill [Roll Forward]
Gross Balance, December 31, 2012	902,388
Accumulated Impairment Losses, Beginning Balance	(287,545)
Foreign Currency	24
Accumulated Impairment Losses, Ending Balance	(287,545)
Gross Balance, September 30, 2013	902,412
Goodwill (Note 3)	614,867	614,843
ROMANIA [Member]
Goodwill [Roll Forward]
Gross Balance, December 31, 2012	106,028
Accumulated Impairment Losses, Beginning Balance	(11,028)
Foreign Currency	1,511
Accumulated Impairment Losses, Ending Balance	(11,028)
Gross Balance, September 30, 2013	107,539
Goodwill (Note 3)	96,511	95,000
SLOVAK REPUBLIC [Member]
Goodwill [Roll Forward]
Gross Balance, December 31, 2012	57,693
Accumulated Impairment Losses, Beginning Balance	0
Foreign Currency	1,360
Accumulated Impairment Losses, Ending Balance	0
Gross Balance, September 30, 2013	59,053
Goodwill (Note 3)	59,053	57,693
SLOVENIA [Member]
Goodwill [Roll Forward]
Gross Balance, December 31, 2012	18,682
Accumulated Impairment Losses, Beginning Balance	0
Foreign Currency	440
Accumulated Impairment Losses, Ending Balance	0
Gross Balance, September 30, 2013	19,122
Goodwill (Note 3)	$ 19,122	$ 18,682

Carrying amount as of the balance sheet date, which is the cumulative amount paid and (if applicable) the fair value of any noncontrolling interest in the acquiree, adjusted for any amortization recognized prior to the adoption of any changes in generally accepted accounting principles (as applicable) and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141R

-Paragraph 68

-Subparagraph l

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 142

-Paragraph 45

-Subparagraph e

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 142

-Paragraph 43

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141R

-Paragraph 72

-Subparagraph d

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 142

-Paragraph 45

-Subparagraph e

-Clause 1

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141R

-Paragraph 34

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details