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CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parentheticals) (USD $) | Mar. 31, 2015 | Sep. 30, 2014
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Statement of Financial Position [Abstract] |  |
Common stock, par value (usd per share) | $ 2.50us-gaap_CommonStockParOrStatedValuePerShare | $ 2.50us-gaap_CommonStockParOrStatedValuePerShare
Common stock, shares authorized | 150,000,000us-gaap_CommonStockSharesAuthorized | 150,000,000us-gaap_CommonStockSharesAuthorized
Common stock, shares outstanding | 85,459,835us-gaap_CommonStockSharesOutstanding | 84,356,312us-gaap_CommonStockSharesOutstanding
Treasury stock at cost and other, shares | 2,872,212us-gaap_TreasuryStockShares | 2,932,775us-gaap_TreasuryStockShares

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- Definition Face amount or stated value per share of common stock. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 30 -Article 5 + Details
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- Definition Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.28,29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 + Details
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