Employee Benefit Plans (Schedule of Weighted-Average Assumptions Used to Determine Benefit Costs) (Details)	12 Months Ended
Sep. 30, 2013	Sep. 30, 2012
Pre Retirement
Defined Benefit Plan Weighted Average Assumptions Used In Calculating Net Periodic Benefit Cost [Line Items]
Discount rate	0.00%	0.00%
Post Retirement
Defined Benefit Plan Weighted Average Assumptions Used In Calculating Net Periodic Benefit Cost [Line Items]
Discount rate	3.08%	4.24%
Net Periodic Benefit Cost
Defined Benefit Plan Weighted Average Assumptions Used In Calculating Net Periodic Benefit Cost [Line Items]
Current year trend rate	8.40%	9.00%
Ultimate trend rate	5.00%	5.00%
Year ultimate trend rate reached	2023	2015

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

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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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