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Segment Reporting (Schedule Of Property, Plant And Equipment, Net, By Geographic Region) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2011
Dec. 31, 2010
Revenues from External Customers and Long-Lived Assets [Line Items]    
Property, plant and equipment, net, by geographic region $ 47,086 $ 36,320
North America [Member]
   
Revenues from External Customers and Long-Lived Assets [Line Items]    
Property, plant and equipment, net, by geographic region 37,133 31,179
Europe, Middle East And Africa [Member]
   
Revenues from External Customers and Long-Lived Assets [Line Items]    
Property, plant and equipment, net, by geographic region 2,104 2,030
LATAM [Member]
   
Revenues from External Customers and Long-Lived Assets [Line Items]    
Property, plant and equipment, net, by geographic region 1,192 1,781
ASIAPAC [Member]
   
Revenues from External Customers and Long-Lived Assets [Line Items]    
Property, plant and equipment, net, by geographic region $ 6,657 $ 1,330