Income Taxes (Unrecognized Tax Benefits) (Details) $ in Thousands	9 Months Ended
	Jun. 30, 2019 USD ($)
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Unrecognized tax benefits, beginning balance	$ 1,561
Decreases resulting from prior year tax positions	(34)
Decreases related to expiration of statute of limitations	(128)
Unrecognized tax benefits, ending balance	1,399
Unrecognized tax benefits that would impact effective tax rate	$ 1,300