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Income Taxes (Summary of Valuation Allowance) (Details) (USD $) In Millions, unless otherwise specified | 9 Months Ended
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Jun. 30, 2013
Movement in Valuation Allowances and Reserves [Roll Forward] |
Valuation Allowance, Deferred Tax Asset, Change in Amount | $ 7.1

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Namespace Prefix: | us-gaap_
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Balance Type: | na
Period Type: | duration

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- Definition The amount of the change in the period in the valuation allowance for a specified deferred tax asset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=21917399&loc=d3e32123-109318 + Details
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