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Business Combinations (Other Fiscal 2014 Acquisitions) - Additional Information (Detail) (Other 2014 Acquisitions, USD $)
 9 Months Ended
Jul. 31, 2014
Entity
Business Acquisition [Line Items]  
Number of other companies acquired 3
Total purchase allocation $ 40,300,000
Goodwill not deductible for tax purposes 24,100,000
Identifiable intangibles assets acquired $ 22,300,000
Minimum
  
Business Acquisition [Line Items]  
Finite lived intangible assets useful life 2 years
Maximum
  
Business Acquisition [Line Items]  
Finite lived intangible assets useful life 8 years