FINANCIAL INSTRUMENTS Gain (Loss) by Hedging Relationship (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014		Mar. 31, 2013
Derivatives in cash flow hedging relationships [Member]
Effect of derivative instruments on statements of operations [Abstract]
Net (loss) gain recognized in OCI, net of tax	$ (297)	[1]	$ 1,086	[1]
Net (loss) gain reclassified from accumulated OCI into Revenue, net of tax	(444)	[2]	825	[2]
Net (loss) gain reclassified from accumulated OCI into Interest income and other, net, net of tax	(10)	[3]	158	[3]
Net (loss) gain recognized in Interest income and other, net, net of tax	(18)	[4]	15	[4]
Derivatives not designated as hedging relationships [Member]
Effect of derivative instruments on statements of operations [Abstract]
Net gain recognized in Interest income and other, net, net of tax	$ 1	[5]	$ 143	[5]

[1] Net change in the fair value of the effective portion classified in OCI

[2] Effective portion classified as Revenue

[3] Ineffective portion classified as Interest income and other, net

[4] Amount excluded from effectiveness testing classified as Interest income and other, net

[5] Classified in Interest income and other, net