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Goodwill and other Identifiable Intangible Assets (Goodwill) (Details) - USD ($)
$ in Thousands
12 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Goodwill [Roll Forward]    
Beginning balance $ 103,398 $ 103,569
Foreign currency translation adjustment (1,301) (171)
Ending balance $ 102,097 $ 103,398