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Goodwill and other Identifiable Intangible Assets (Amortization Expense) (Details) - USD ($)
$ in Thousands
12 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2013
Goodwill and Intangible Assets Disclosure [Abstract]      
Amortization expense $ 2,910 $ 3,589 $ 4,416
2016 1,944    
2017 1,061    
2018 487    
2019 451    
2020 $ 168