Employee Benefit Plans (Schedule Of Net Periodic Benefit Costs) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Interest cost	$ 392	$ 364	$ 1,177	$ 1,092
Expected return on plan assets	(373)	(396)	(1,120)	(1,188)
Amortization of net gain (loss)	141	85	422	253
Net periodic benefit cost	160	53	479	157
Other Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	15	13	45	38
Interest cost	10	8	29	24
Amortization of net gain (loss)	(3)	(12)	(11)	(36)
Net periodic benefit cost	$ 22	$ 9	$ 63	$ 26