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DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Notional Amount and Fair Value (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Foreign currency exchange contracts | Maximum
Derivative Instruments and Hedging Activities
Term of derivative instrument	1 month
Not designated as hedging instruments | Accounts receivable, net | Receive RSD/pay USD
Derivative Instruments and Hedging Activities
Notional amount, Assets		$ 9,018
Fair Value, Assets		59
Not designated as hedging instruments | Accounts receivable, net | Receive NOK/pay USD
Derivative Instruments and Hedging Activities
Notional amount, Assets		2,122
Fair Value, Assets		17
Not designated as hedging instruments | Accounts receivable, net | Receive USD/pay SGD
Derivative Instruments and Hedging Activities
Notional amount, Assets		1,555
Fair Value, Assets		7
Not designated as hedging instruments | Accounts receivable, net | Receive USD/pay GBP
Derivative Instruments and Hedging Activities
Notional amount, Assets	$ 46,342
Fair Value, Assets	62
Not designated as hedging instruments | Accounts receivable, net | Receive USD/pay AUD
Derivative Instruments and Hedging Activities
Notional amount, Assets	14,276
Fair Value, Assets	60
Not designated as hedging instruments | Accounts receivable, net | Receive USD/pay NZD
Derivative Instruments and Hedging Activities
Notional amount, Assets	1,812
Fair Value, Assets	35
Not designated as hedging instruments | Accounts receivable, net | Receive USD/pay COP
Derivative Instruments and Hedging Activities
Notional amount, Assets	4,174
Fair Value, Assets	14
Not designated as hedging instruments | Accounts receivable, net | Receive USD/pay SEK
Derivative Instruments and Hedging Activities
Notional amount, Assets	2,160
Fair Value, Assets	12
Not designated as hedging instruments | Accounts receivable, net | Receive USD/pay ZAR
Derivative Instruments and Hedging Activities
Notional amount, Assets	910
Fair Value, Assets	9
Not designated as hedging instruments | Accounts receivable, net | Receive USD/ pay NOK
Derivative Instruments and Hedging Activities
Notional amount, Assets	1,008
Fair Value, Assets	6
Not designated as hedging instruments | Accounts receivable, net | Receive USD/pay DKK
Derivative Instruments and Hedging Activities
Notional amount, Assets	1,304
Fair Value, Assets	4
Not designated as hedging instruments | Accounts receivable, net | Receive SGD/pay USD
Derivative Instruments and Hedging Activities
Notional amount, Assets	914
Fair Value, Assets	1
Not designated as hedging instruments | Accounts receivable, net | Receive EUR/pay USD
Derivative Instruments and Hedging Activities
Notional amount, Assets		26,731
Fair Value, Assets		246
Not designated as hedging instruments | Accrued liabilities | Receive RSD/pay USD
Derivative Instruments and Hedging Activities
Notional amount, Liabilities	11,530
Fair Value, Liabilities	(85)
Not designated as hedging instruments | Accrued liabilities | Receive USD/pay GBP
Derivative Instruments and Hedging Activities
Notional amount, Liabilities		38,406
Fair Value, Liabilities		(695)
Not designated as hedging instruments | Accrued liabilities | Receive USD/pay AUD
Derivative Instruments and Hedging Activities
Notional amount, Liabilities		12,819
Fair Value, Liabilities		(172)
Not designated as hedging instruments | Accrued liabilities | Receive USD/pay NZD
Derivative Instruments and Hedging Activities
Notional amount, Liabilities		3,071
Fair Value, Liabilities		(33)
Not designated as hedging instruments | Accrued liabilities | Receive USD/pay COP
Derivative Instruments and Hedging Activities
Notional amount, Liabilities		3,793
Fair Value, Liabilities		(18)
Not designated as hedging instruments | Accrued liabilities | Receive USD/pay ZAR
Derivative Instruments and Hedging Activities
Notional amount, Liabilities		3,349
Fair Value, Liabilities		(32)
Not designated as hedging instruments | Accrued liabilities | Receive USD/pay DKK
Derivative Instruments and Hedging Activities
Notional amount, Liabilities		1,283
Fair Value, Liabilities		(11)
Not designated as hedging instruments | Accrued liabilities | Receive EUR/pay USD
Derivative Instruments and Hedging Activities
Notional amount, Liabilities	34,987
Fair Value, Liabilities	(272)
Not designated as hedging instruments | Accrued liabilities | Receive USD/pay RUB
Derivative Instruments and Hedging Activities
Notional amount, Liabilities	11,840	12,777
Fair Value, Liabilities	$ (147)	$ (55)

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
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+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
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+ References

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