SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Total accumulated other comprehensive income, net of tax, beginning balance	$ (612)
(Decrease)/ Increase	(4,325)
Reclassification Adjustments	(1,785)
Total accumulated other comprehensive income, net of tax, ending balance	(6,722)
Foreign currency translation adjustment [Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Total accumulated other comprehensive income, net of tax, beginning balance	(2,933)
(Decrease)/ Increase	(8,122)
Reclassification Adjustments	0
Total accumulated other comprehensive income, net of tax, ending balance	(11,055)
Unrealized change in non-marketable securities [Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Total accumulated other comprehensive income, net of tax, beginning balance	1,219
(Decrease)/ Increase	224
Reclassification Adjustments	0
Total accumulated other comprehensive income, net of tax, ending balance	1,443
Unrealized change in cash flow hedges [Member]
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Total accumulated other comprehensive income, net of tax, beginning balance	1,102
(Decrease)/ Increase	3,573
Reclassification Adjustments	(1,785)
Total accumulated other comprehensive income, net of tax, ending balance	$ 2,890