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INCOME TAXES (Details) (USD $) In Millions, unless otherwise specified | Sep. 30, 2014 | Sep. 30, 2013
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Tax Credit Carryforward [Line Items] |  |
Unrecognized tax benefits affect on the Company's effective tax rate | $ 2.5 | $ 1.9
Laclede Gas |  |
Tax Credit Carryforward [Line Items] |  |
Unrecognized tax benefits affect on the Company's effective tax rate | $ 2.1 | $ 1.5

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- Definition The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319 + Details
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