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Note 14 (Detail) |  |  | 3 Months Ended | 6 Months Ended | 3 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | ---
Apr. 30, 2013 | Feb. 09, 2011 | Apr. 30, 2013 Included in EPS [Member] | Apr. 30, 2013 Non-Vested Stock and Outstanding Options [Member] Because of Net Loss [Member] | Apr. 30, 2012 Non-Vested Stock and Outstanding Options [Member] Because of Net Loss [Member] | Apr. 30, 2013 Senior Exchangeable Notes [Member] Because of Net Loss [Member] | Apr. 30, 2013 Employee Stock Option [Member] | Apr. 30, 2012 Employee Stock Option [Member] | Apr. 30, 2013 Minimum [Member] | Apr. 30, 2013 Maximum [Member] | Apr. 30, 2013 The 6.00% Exchangable Note Units [Member] | Oct. 02, 2012 The 6.00% Exchangable Note Units [Member]
Prepaid Stock Purchase Contracts, Shares Included in Basic Earnings Per Share |  |  | 6,100,000 |  |  |  |  |  |  |  |  |
Tangible Equity Units, Rate | 7.25% | 7.25% |  |  |  |  |  |  |  |  |  |
Tangible Equity Units, Number of Shares Upon Conversion, Per Unit |  |  |  |  |  |  |  |  | 4.7655 | 5.8140 |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  |  |  |  |  |  | 6.00% | 6.00%
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount |  |  |  | 1,400,000 | 60,000 | 16,500,000 | 1,300,000 | 2,600,000 |  |  |  |

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- Definition Amount of shares of prepaid common stock purchase contracts included in the based earnings per share calculations, which are issuable in the future with no additional cash required to be paid by the holders thereof. + References No definition available. + Details
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- Definition Number of shares per prepaid stock purchase contract that each prepaid stock purchase contract will settle at and be delivered as shares of Class A Common Stock. + References No definition available. + Details
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- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Contingent Stock Agreement -URI http://asc.fasb.org/extlink&oid=6508534 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Antidilution -URI http://asc.fasb.org/extlink&oid=6505113 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Diluted Earnings Per Share -URI http://asc.fasb.org/extlink&oid=6510752 + Details
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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