DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Notional Amount and Fair Value (Details) - USD ($) $ in Thousands	6 Months Ended
Jun. 30, 2017	Dec. 31, 2016
Foreign currency exchange contracts \| Maximum
Derivative Instruments and Hedging Activities
Term of derivative instrument	1 month
Derivatives not designated as hedging instruments \| Receive CAD/pay USD \| Accounts receivable, net
Derivative Instruments and Hedging Activities
Notional amount, Assets	$ 20,193	$ 22,314
Fair Value, Assets	104	173
Derivatives not designated as hedging instruments \| Receive USD/pay ZAR \| Accounts receivable, net
Derivative Instruments and Hedging Activities
Notional amount, Assets	20,664
Fair Value, Assets	365
Derivatives not designated as hedging instruments \| Receive USD/pay ZAR \| Accrued liabilities
Derivative Instruments and Hedging Activities
Notional amount, Liabilities		20,405
Fair Value, Liabilities		(296)
Derivatives not designated as hedging instruments \| Receive USD/pay MXN \| Accounts receivable, net
Derivative Instruments and Hedging Activities
Notional amount, Assets	19,948
Fair Value, Assets	336
Derivatives not designated as hedging instruments \| Receive USD/pay MXN \| Accrued liabilities
Derivative Instruments and Hedging Activities
Notional amount, Liabilities		25,864
Fair Value, Liabilities		(4)
Derivatives not designated as hedging instruments \| Receive SGD/pay USD \| Accounts receivable, net
Derivative Instruments and Hedging Activities
Notional amount, Assets	10,091	7,915
Fair Value, Assets	7	24
Derivatives not designated as hedging instruments \| Receive USD/pay BRL \| Accounts receivable, net
Derivative Instruments and Hedging Activities
Notional amount, Assets	4,589
Fair Value, Assets	25
Derivatives not designated as hedging instruments \| Receive USD/pay BRL \| Accrued liabilities
Derivative Instruments and Hedging Activities
Notional amount, Liabilities		3,138
Fair Value, Liabilities		(3)
Derivatives not designated as hedging instruments \| Receive USD/pay CLP \| Accounts receivable, net
Derivative Instruments and Hedging Activities
Notional amount, Assets	4,747	4,094
Fair Value, Assets	2	9
Derivatives not designated as hedging instruments \| Receive USD/pay COP \| Accounts receivable, net
Derivative Instruments and Hedging Activities
Notional amount, Assets	1,906	2,330
Fair Value, Assets	14	2
Derivatives not designated as hedging instruments \| Receive USD/pay GBP \| Accrued liabilities
Derivative Instruments and Hedging Activities
Notional amount, Liabilities	17,728	7,718
Fair Value, Liabilities	(118)	(57)
Derivatives not designated as hedging instruments \| Receive USD/pay EUR \| Accrued liabilities
Derivative Instruments and Hedging Activities
Notional amount, Liabilities	19,834	29,621
Fair Value, Liabilities	(62)	(325)
Derivatives not designated as hedging instruments \| Receive USD/pay AUD \| Accrued liabilities
Derivative Instruments and Hedging Activities
Notional amount, Liabilities	24,791	15,135
Fair Value, Liabilities	(186)	(74)
Derivatives not designated as hedging instruments \| Receive USD/pay NZD \| Accrued liabilities
Derivative Instruments and Hedging Activities
Notional amount, Liabilities	1,971	2,076
Fair Value, Liabilities	$ (5)	(5)
Derivatives not designated as hedging instruments \| Receive NOK/pay USD \| Accounts receivable, net
Derivative Instruments and Hedging Activities
Notional amount, Assets		2,138
Fair Value, Assets		$ 28

Nominal or face amount used to calculate payments on the derivative asset.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5579245-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Notional Amount
-URI http://asc.fasb.org/extlink&oid=6519104

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5580258-113959

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- Definition

Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4B
-Subparagraph (a),(c)
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624163-113959

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 55
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=51825145&loc=SL20226000-175313

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 20
-Section 50
-Paragraph 4D
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=64830801&loc=SL51823488-111719

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- Definition

Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 20
-Section 50
-Paragraph 4D
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=64830801&loc=SL51823488-111719

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4B
-Subparagraph (a),(c)
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624163-113959

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 55
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=51825145&loc=SL20226000-175313

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Balance Type:	credit
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- Definition

Nominal or face amount used to calculate payments on the derivative liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5580258-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Notional Amount
-URI http://asc.fasb.org/extlink&oid=6519104

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5579245-113959

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Balance Type:	na
Period Type:	instant

- Definition

Period the derivative contract is outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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