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Goodwill and Other Intangibles (Details 1) (USD $)
In Thousands, unless otherwise specified
6 Months Ended
Jun. 30, 2012
Changes in the carrying amount of goodwill, by segment  
Balance at January 1, 2012 $ 12,199
Additions 2,964
Currency translation (47)
Balance at June 30, 2012 15,116
Americas [Member]
 
Changes in the carrying amount of goodwill, by segment  
Balance at January 1, 2012 3,078
Additions 0
Currency translation 0
Balance at June 30, 2012 3,078
EMEA [Member]
 
Changes in the carrying amount of goodwill, by segment  
Balance at January 1, 2012 1,029
Additions 853
Currency translation (104)
Balance at June 30, 2012 1,778
Asia-Pacific [Member]
 
Changes in the carrying amount of goodwill, by segment  
Balance at January 1, 2012 8,092
Additions 2,111
Currency translation 57
Balance at June 30, 2012 $ 10,260