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Goodwill and Other Intangible Assets (Schedule of Changes in the Carrying Amount of Goodwill) (Details)
$ in Thousands
3 Months Ended
Mar. 31, 2016
USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill as of January 1, 2016 $ 383,853
Translation differences 2,700
Goodwill as of March 31, 2016 $ 386,559