SIGNIFICANT ACCOUNTING POLICIES ACCUMULATED OTHER COMPREHENSIVE INCOME (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Cumulative translation adjustment of foreign currency statements	$ 50,627	$ 32,702	$ 50,966
Unrealized gain (loss) on long-term investments (net of taxes of ($72), $155 and ($50), respectively)	660	(348)	459
Unfunded pension liability (net of taxes of $514, $283 and $225, respectively)	(1,655)	(1,001)	(666)
Accumulated Other Comprehensive Income (Loss), Net of Tax	$ 49,632	$ 31,353	$ 50,759