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Income Taxes (Schedule Of Income Before Income Tax, Domestic and Foreign) (Details) - USD ($)
$ in Thousands
12 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2014
Income Taxes [Abstract]      
U.S. $ 22,081 $ 14,940 $ (46,061)
Foreign 6,272 6,382 5,563
Total pretax income $ 28,353 $ 21,322 $ (40,498)