Employee Benefit Plans (Schedule Of Amounts Recognized In Other Comprehensive Income) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2011
Pension Benefits [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Net (gain) loss	$ (4,151)	$ 2,829	$ 4,091
Amortization of net loss	(433)	(314)	(104)
Total recognized in other comprehensive income	(4,584)	2,515	3,987
Total recognized in net periodic benefit cost and other comprehensive income	(4,250)	2,959	4,165
Other Postretirement Benefit Plans, Defined Benefit [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Net (gain) loss	(222)	55	30
Amortization of net loss	1
Amortization of prior service cost			111
Total recognized in other comprehensive income	(221)	55	141
Total recognized in net periodic benefit cost and other comprehensive income	$ (118)	$ 169	$ 139