Income Taxes (Tax Expense and Effective Tax Rate) (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Earnings before income taxes	$ 31,749	$ 37,746
Income tax expense	$ 2,143	$ 7,441
Effective tax rate	6.70%	19.70%