Income Taxes (Unrecognized Tax Benefits) (Details) $ in Thousands	6 Months Ended
	Mar. 31, 2023 USD ($)
Unrecognized tax benefits that would impact effective tax rate	$ 2,600
Income tax benefit specific to the period	1,700
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Unrecognized tax benefits, beginning balance	3,316
Decreases related to expiration of statute of limitations	(649)
Unrecognized tax benefits, ending balance	2,667
Maximum
Unrecognized tax benefits that would decrease next twelve months	$ 300