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Schedule II Valuation and Qualifying Accounts (Detail) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Oct. 31, 2013
Oct. 31, 2012
Oct. 31, 2011
Allowance for Customer Deductions [Member]
      
Valuation and Qualifying Accounts Disclosure [Line Items]      
Balance at beginning of year $ 2,693 $ 1,796 $ 815
Additions 9,722 9,886 8,674
Deductions 10,933 8,989 7,693
Balance at end of year 1,482 2,693 1,796
Allowance for Doubtful Accounts [Member]
      
Valuation and Qualifying Accounts Disclosure [Line Items]      
Balance at beginning of year 528 489 557
Additions 62 130 91
Deductions 375 91 159
Balance at end of year $ 215 $ 528 $ 489