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Income Taxes (Earnings Before Income Taxes by Geographical Area) (Details) - USD ($)
$ in Thousands
12 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2020
Income Tax Disclosure [Abstract]      
United States $ 99,427 $ 136,280 $ 180,753
Other countries 100,471 109,519 101,128
Earnings before income taxes $ 199,898 $ 245,799 $ 281,881