VALUATION AND QUALIFYING ACCOUNTS (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Allowance for Doubtful Accounts [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	$ 2,011	$ 1,581	$ 851
Charged to Costs and Expenses	556	1,484	1,587
Removal of Uncollectable Receivables	(1,127)	(1,042)	(864)
Translation Adjustments Increase (Decrease)	(31)	(12)	7
Balance at the End of Period	1,409	2,011	1,581
Valuation Allowance of Deferred Tax Assets [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	137,961	134,761	113,585
Charged to Costs and Expenses	(10,437)	6,640	16,240
Other	(7,062)	(2,212)	4,449
Translation Adjustments Increase (Decrease)	(1,345)	(1,228)	487
Balance at the End of Period	$ 119,117	$ 137,961	$ 134,761

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Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 09

-Article 12

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Total increases or decreases in allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs.

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