Employee Benefit Plans (Schedule Of Amounts Recognized In Other Comprehensive Income) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2012
Pension Benefits [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Net (gain) loss	$ 5,848	$ (4,151)	$ 2,829
Amortization of net loss	(194)	(433)	(314)
Total recognized in other comprehensive income	5,654	(4,584)	2,515
Total recognized in net periodic benefit cost and other comprehensive income	5,840	(4,250)	2,959
Other Postretirement Benefit Plans, Defined Benefit [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Net (gain) loss	150	(222)	55
Amortization of net loss	11	1
Total recognized in other comprehensive income	161	(221)	55
Total recognized in net periodic benefit cost and other comprehensive income	$ 263	$ 118	$ 169