ACCUMULATED OTHER COMPREHENSIVE LOSS (Details) (USD $)	Dec. 31, 2012	Dec. 31, 2011
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Foreign currency translation adjustments	$ (23,786,000)	$ (88,312,000)
Net unrealized gain on investment securities	110,000	730,000
Accumulated other comprehensive loss	(23,676,000)	(87,582,000)
Net gains from fair value adjustments associated with net investment hedges, after tax	23,800,000	46,200,000
Net gains from fair value adjustments associated with net investment hedges, before tax	38,700,000	79,100,000
Net unrealized gain on investment securities, before tax	$ 200,000	$ 1,000,000