DERIVATIVE AND HEDGING INSTRUMENTS - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2018	Mar. 31, 2017
Cash Flow Hedges \| Interest Rate Swap
Derivative [Line Items]
Unrealized gains (losses) recognized in in other income	$ 0	$ (100)
Designated as Hedging Instrument \| Cash Flow Hedges
Derivative [Line Items]
Gains included in accumulated other comprehensive loss which are expected to be reclassified into earnings in the next 12 months	$ 4,400
Not Designated as Hedging Instrument \| Cross Currency Interest Rate Swaps
Derivative [Line Items]
Other expenses		$ 7

The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=35736893&loc=d3e80748-113994

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Amount of gain (loss) from the ineffectiveness of the hedge.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (d)(1)
-URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959

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-Section 50
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Amount of expense classified as other.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04.7)
-URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913

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-Name Accounting Standards Codification
-Topic 225
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-Section S99
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