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Income Taxes (Summary Of Income (Loss) Before Income Taxes) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2011
Income Tax Disclosure [Abstract]      
Domestic $ 6,112 $ (11,422) $ (23,984)
Foreign 120,122 132,158 128,532
Total income before income taxes $ 126,234 $ 120,736 $ 104,548