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Income Taxes (Schedule of Income Before Income Taxes) (Details) - USD ($)
$ in Thousands
12 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2014
Income Tax Disclosure [Abstract]      
U.S. $ 5,087 $ 33,549 $ 35,131
Other than U.S. 12,706 (10,558) (4,443)
Income from continuing operations before income taxes $ 17,793 $ 22,991 $ 30,688