Employee Benefit Plans (Schedule Of Net Funded Status) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2011
Defined Benefit Plan Disclosure [Line Items]
Benefit obligation at end of year	$ 32,374	$ 36,436
Fair value of plan assets at end of year	23,621	22,675
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Benefit obligation at beginning of year	36,436	31,714
Interest Cost	1,361	1,442	1,454
Actuarial (gain) loss	(4,297)	4,293
Benefits paid	(1,126)	(1,013)
Benefit obligation at end of year	32,374	36,436	31,714
Fair value of plan assets at beginning of year	22,675	20,540
Actual return on plan assets	1,315	2,775
Employer contributions	757	373
Fair value of plan assets at end of year	23,621	22,675	20,540
Funded status at end of year	(8,753)	(13,761)
Other Postretirement Benefit Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Benefit obligation at beginning of year	1,286	1,196
Service Cost	63	61	54
Interest Cost	41	53	55
Actuarial (gain) loss	(222)	55
Benefits paid	(88)	(79)
Benefit obligation at end of year	1,080	1,286	1,196
Employer contributions	88	79
Funded status at end of year	$ (1,080)	$ (1,286)