Employee Benefit Plans (Schedule Of Weighted-Average Assumptions Used To Determine Benefit Obligations)	12 Months Ended
Sep. 30, 2012	Sep. 30, 2011
Pre-Retirement [Member]
Defined Benefit Plan Weighted Average Assumptions Used In Calculating Benefit Obligation [Line Items]
Discount rate	0.00%	0.00%
Post-Retirement [Member]
Defined Benefit Plan Weighted Average Assumptions Used In Calculating Benefit Obligation [Line Items]
Discount rate	3.08%	4.24%
Benefit Obligation [Member]
Defined Benefit Plan Weighted Average Assumptions Used In Calculating Benefit Obligation [Line Items]
Current year trend rate	8.40%	10.00%
Ultimate trend rate	5.00%	5.00%
Year ultimate trend rate reached	2023	2014

The interest rate used to adjust for the time value of money for the plan.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 132R

-Paragraph 5

-Subparagraph j

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (k)(1)

-URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920

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