Income Taxes (Reconciliation Of The Change In Unrecognized Tax Benefits) (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2018
Income Tax Disclosure [Abstract]
Balance at Beginning of Year	$ 0	$ 0	$ 1,251
Additions for Tax Positions of Prior Years	0	0	0
Reductions for Tax Positions of Prior Years	0	0	(788)
Reductions Related to Settlements with Taxing Authorities	0	0	(463)
Balance at End of Year	$ 0	$ 0	$ 0