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Leases (Details) (USD $)
12 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2012
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]      
Rental expense $ 5,400,000 $ 4,900,000 $ 5,900,000
2015 3,407,000    
2016 3,002,000    
2017 2,008,000    
2018 1,045,000    
2019 598,000    
Thereafter 19,000    
Total $ 10,079,000