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Goodwill and Intangible Assets, Net (Details 2) (USD $)
In Thousands
3 Months Ended9 Months Ended
Sep. 30, 2011
Sep. 30, 2010
Sep. 30, 2011
Sep. 30, 2010
Changes in the carrying amount of goodwill    
Balance at the beginning of the period  $ 70,069 
Reclassifications  (336) 
Foreign exchange  (45) 
Balance at the end of the period69,68875,58569,68875,585
Changes in the carrying amount of intangible assets    
Balance at the beginning of the period  23,466 
Amortization(1,000)(1,000)(3,242)(3,500)
Reclassifications  (109) 
Foreign exchange  137 
Balance at the end of the period$ 20,252$ 23,068$ 20,252$ 23,068