DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Foreign currency exchange contracts | Maximum
Derivative Instruments and Hedging Activities
Term of derivative instrument			1 month
Derivatives not designated as hedging instruments | Foreign currency exchange contracts | Interest and other income, net
Derivative Instruments and Hedging Activities
Amount of loss recognized in income on derivatives	$ (63)	$ (406)	$ (1,919)	$ (765)
Derivatives not designated as hedging instruments | Receive USD/pay GBP | Accounts receivables, net
Derivative Instruments and Hedging Activities
Notional amount, Assets	4,406		4,406
Fair Value, Assets	1		1
Derivatives not designated as hedging instruments | Receive USD/pay CAD | Accounts receivables, net
Derivative Instruments and Hedging Activities
Notional amount, Assets	4,865		4,865
Fair Value, Assets	60		60
Derivatives not designated as hedging instruments | Receive CAD/pay USD | Accounts receivables, net
Derivative Instruments and Hedging Activities
Notional amount, Liabilities					$ 19,940
Fair Value, Liabilities					(83)
Derivatives not designated as hedging instruments | Receive EUR/pay USD | Accrued liabilities
Derivative Instruments and Hedging Activities
Notional amount, Liabilities	15,517		15,517		13,265
Fair Value, Liabilities	17		17		75
Derivatives not designated as hedging instruments | Receive USD/pay AUD | Accrued liabilities
Derivative Instruments and Hedging Activities
Notional amount, Liabilities	8,551		8,551		8,343
Fair Value, Liabilities	72		72		48
Derivatives not designated as hedging instruments | Receive USD/pay JPY | Accrued liabilities
Derivative Instruments and Hedging Activities
Notional amount, Liabilities	9,241		9,241		10,620
Fair Value, Liabilities	124		124		84
Derivatives not designated as hedging instruments | Receive USD/pay ZAR | Accrued liabilities
Derivative Instruments and Hedging Activities
Notional amount, Liabilities	12,808		12,808		14,760
Fair Value, Liabilities	54		54		105
Derivatives not designated as hedging instruments | Receive USD/pay MXN | Accounts receivables, net
Derivative Instruments and Hedging Activities
Notional amount, Liabilities	7,455		7,455
Fair Value, Liabilities	(69)		(69)
Derivatives not designated as hedging instruments | Receive USD/pay MXN | Accrued liabilities
Derivative Instruments and Hedging Activities
Notional amount, Liabilities					4,961
Fair Value, Liabilities					11
Derivatives not designated as hedging instruments | Receive USD/pay CLP | Accrued liabilities
Derivative Instruments and Hedging Activities
Notional amount, Liabilities	3,813		3,813		2,685
Fair Value, Liabilities	11		11		10
Derivatives not designated as hedging instruments | Receive USD/pay COP | Accounts receivables, net
Derivative Instruments and Hedging Activities
Notional amount, Liabilities	1,329		1,329
Fair Value, Liabilities	$ (9)		$ (9)
Derivatives not designated as hedging instruments | Receive USD/pay COP | Accrued liabilities
Derivative Instruments and Hedging Activities
Notional amount, Liabilities					2,845
Fair Value, Liabilities					$ 2