SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Beginning AOCI Balance	$ 6,302
Other comprehensive income loss before reclassifications, net of tax	(1,232)
Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax	(1,082)
Ending AOCI Balance	3,988
Gain on Cash Flow Hedge Ineffectiveness	158	0
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax [Member]
Beginning AOCI Balance	5,374
Other comprehensive income loss before reclassifications, net of tax	(3,125)
Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax	0
Ending AOCI Balance	2,249
Accumulated Other Comprehensive Income Loss Available- For- Sale Securities And Non- Marketable Investments Adjustment Before Reclassification Adjustments Net Of Tax [Member]
Beginning AOCI Balance	896
Other comprehensive income loss before reclassifications, net of tax	(176)
Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax	(99)
Ending AOCI Balance	621
Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax [Member]
Beginning AOCI Balance	32
Other comprehensive income loss before reclassifications, net of tax	2,069
Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax	(983)
Ending AOCI Balance	$ 1,118