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Stock-Based Compensation - Additional Information (Detail) | 9 Months Ended
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Jul. 31, 2013
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] |
Stock options granted | 0

X
- Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Gross number of share options (or share units) granted during the period. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration