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DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Notional Amount and Fair Value (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Dec. 31, 2015
Foreign currency exchange contracts | Maximum
Derivative Instruments and Hedging Activities
Term of derivative instrument	1 month
Derivatives not designated as hedging instruments | Receive USD/pay GBP | Accounts receivable, net.
Derivative Instruments and Hedging Activities
Notional amount, Assets	$ 16,141	$ 18,146
Fair Value, Assets	110	168
Derivatives not designated as hedging instruments | Receive USD/pay ZAR | Accounts receivable, net.
Derivative Instruments and Hedging Activities
Notional amount, Assets		17,411
Fair Value, Assets		144
Derivatives not designated as hedging instruments | Receive USD/pay ZAR | Accrued liabilities
Derivative Instruments and Hedging Activities
Notional amount, Liabilities	13,385
Fair Value, Liabilities	(347)
Derivatives not designated as hedging instruments | Receive USD/pay RUB | Accounts receivable, net.
Derivative Instruments and Hedging Activities
Notional amount, Assets		2,173
Fair Value, Assets		9
Derivatives not designated as hedging instruments | Receive USD/pay BRL | Accounts receivable, net.
Derivative Instruments and Hedging Activities
Notional amount, Assets		2,478
Fair Value, Assets		49
Derivatives not designated as hedging instruments | Receive USD/pay BRL | Accrued liabilities
Derivative Instruments and Hedging Activities
Notional amount, Liabilities	3,121
Fair Value, Liabilities	(91)
Derivatives not designated as hedging instruments | Receive USD/pay COP | Accounts receivable, net.
Derivative Instruments and Hedging Activities
Notional amount, Assets		1,351
Fair Value, Assets		1
Derivatives not designated as hedging instruments | Receive USD/pay COP | Accrued liabilities
Derivative Instruments and Hedging Activities
Notional amount, Liabilities	1,672
Fair Value, Liabilities	(40)
Derivatives not designated as hedging instruments | Receive EUR/pay USD | Accounts receivable, net.
Derivative Instruments and Hedging Activities
Notional amount, Assets	28,473
Fair Value, Assets	57
Derivatives not designated as hedging instruments | Receive EUR/pay USD | Accrued liabilities
Derivative Instruments and Hedging Activities
Notional amount, Liabilities		39,578
Fair Value, Liabilities		(429)
Derivatives not designated as hedging instruments | Receive USD/pay AUD | Accrued liabilities
Derivative Instruments and Hedging Activities
Notional amount, Liabilities	17,578	14,040
Fair Value, Liabilities	(204)	(82)
Derivatives not designated as hedging instruments | Receive USD/pay CAD | Accrued liabilities
Derivative Instruments and Hedging Activities
Notional amount, Liabilities		2,804
Fair Value, Liabilities		(15)
Derivatives not designated as hedging instruments | Receive USD/pay JPY | Accrued liabilities
Derivative Instruments and Hedging Activities
Notional amount, Liabilities		2,495
Fair Value, Liabilities		(2)
Derivatives not designated as hedging instruments | Receive USD/pay MXN | Accrued liabilities
Derivative Instruments and Hedging Activities
Notional amount, Liabilities	6,739	8,122
Fair Value, Liabilities	(188)	(15)
Derivatives not designated as hedging instruments | Receive SGD/Pay USD | Accounts receivable, net.
Derivative Instruments and Hedging Activities
Notional amount, Assets	6,734
Fair Value, Assets	17
Derivatives not designated as hedging instruments | Receive SGD/Pay USD | Accrued liabilities
Derivative Instruments and Hedging Activities
Notional amount, Liabilities		3,837
Fair Value, Liabilities		(30)
Derivatives not designated as hedging instruments | Receive USD/Pay NZD | Accrued liabilities
Derivative Instruments and Hedging Activities
Notional amount, Liabilities	2,314	1,978
Fair Value, Liabilities	$ (36)	(3)
Derivatives not designated as hedging instruments | Receive USD/pay CLP | Accrued liabilities
Derivative Instruments and Hedging Activities
Notional amount, Liabilities		3,519
Fair Value, Liabilities		$ (12)

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- Definition

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

+ References

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=56946850&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

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-Name Accounting Standards Codification
-Topic 815
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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 50
-Paragraph 3
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-Name Accounting Standards Codification
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+ 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)
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Nominal or face amount used to calculate payments on the derivative liability.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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