FINANCIAL INSTRUMENTS - Schedule of the Notional Amounts of Derivative Assets and Liabilities that Mature within 12 months (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Derivative [Line Items]
Notional values of the Company's foreign currency forward contracts	$ 21,157	$ 42,538
Swap [Member]
Derivative [Line Items]
Notional values of the Company's foreign currency forward contracts	0	10,307
Euro [Member}
Derivative [Line Items]
Notional values of the Company's foreign currency forward contracts	15,982	21,990
Japanese yen [Member]
Derivative [Line Items]
Notional values of the Company's foreign currency forward contracts	3,391	4,588
British pound [Member]
Derivative [Line Items]
Notional values of the Company's foreign currency forward contracts	$ 1,784	$ 5,653