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Fair Value Measures - Additional Information (Detail) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Oct. 31, 2014 | Oct. 31, 2015
Fair Value Measures [Line Items] |  |
Non-marketable equity securities | $ 10.9 | $ 10.3
Proceeds from Sale, Maturity and Collection of Investments | 7.1 |
Cost Method Investments |  |
Fair Value Measures [Line Items] |  |
Non-marketable equity securities | 6.7 | 6.6
Equity Method Investments |  |
Fair Value Measures [Line Items] |  |
Non-marketable equity securities | 4.2 | $ 3.7
Other Income Expense Net |  |
Fair Value Measures [Line Items] |  |
Gain from liquidation of investment | $ 6.9 |

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- Definition Fair Value Measures [Line Items] + References No definition available. + Details
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- Definition The difference between the carrying value and the sale price of an investment. A gain would be recognized when the sale price of the investment is greater than the carrying value of the investment. This element refers to the Gain included in earnings and not to the cash proceeds of the sale. + References No definition available. + Details
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- Definition The cash inflow associated with the sale, maturity and collection of all investments such as debt, security and so forth during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585 + Details
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- Definition Aggregate carrying value of owned private equity or other securities for which a quoted market price is not readily determinable, the value of which has been determined by management based upon fair value methods, including pricing of similar securities and valuation techniques and is included in the schedule of financial condition or the balance sheet. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Rule 15c3 -Number 240 -Section 3 -Paragraph i -Article 15c3 + Details
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