Segment Information (Schedule Of Operating Income, By Geographical Areas) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Schedule Of Operating Income By Major Geographic Areas [Line Items]
Operating income	$ 116,934	$ 112,712	$ 128,313
Americas [Member]
Schedule Of Operating Income By Major Geographic Areas [Line Items]
Operating income	41,266	55,140	71,339
Europe [Member]
Schedule Of Operating Income By Major Geographic Areas [Line Items]
Operating income	135,600	142,533	131,691
East Asia [Member]
Schedule Of Operating Income By Major Geographic Areas [Line Items]
Operating income	125,879	85,005	66,414
Emerging Asia [Member]
Schedule Of Operating Income By Major Geographic Areas [Line Items]
Operating income	37,183	29,105	17,018
Unallocated: Research And Development Expenses [Member]
Schedule Of Operating Income By Major Geographic Areas [Line Items]
Operating income	$ (222,994)	$ (199,071)	$ (158,149)