Income Taxes (Tax Expense and Effective Tax Rate) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Income Tax Disclosure [Abstract]
Earnings before income taxes	$ 126,836	$ 122,096	$ 361,653	$ 352,440
Income tax expense	$ 18,388	$ 20,021	$ 57,165	$ 62,765
Effective tax rate	14.50%	16.40%	15.80%	17.80%