Annual report pursuant to Section 13 and 15(d)

Goodwill And Other Intangible Assets (Schedule Of Goodwill) (Details)

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Goodwill And Other Intangible Assets (Schedule Of Goodwill) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2010
Goodwill And Other Intangible Assets [Abstract]    
Balance at December 31, 2010 $ 57,481 $ 38,226
Balance at December 31, 2011 38,226 38,226
Increase due to acquisitions 18,220  
Impact of foreign currency exchange rates 1,035  
Balance at December 31, 2012 $ 57,481 $ 38,226