FINANCIAL INSTRUMENTS, Gain (Loss) by Hedging Relationship (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Derivative designated as hedging instrument [Member]
Effect of derivative instruments on statements of operations [Abstract]
Net gain (loss) recognized in OCI, net of tax (1)	$ (794)	$ 826	$ 0
Net gain reclassified from accumulated OCI into income, net of tax (2)	1,226	0	0
Net gain (loss) recognized in other income and expense (3)	109	(103)	0
Derivative not designated as hedging instrument [Member]
Effect of derivative instruments on statements of operations [Abstract]
Net income (loss) recognized in other income and expense (4)	$ (539)	$ (1,720)	$ 957