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Noncontrolling Interest - Additional Information (Detail) (USD $)
3 Months Ended 6 Months Ended
Apr. 30, 2014
Apr. 30, 2013
Apr. 30, 2014
Apr. 30, 2013
Noncontrolling Interest [Line Items]        
Expenses incurred $ 9,111,000 $ 8,190,000 $ 17,383,000 $ 17,011,000
FreshRealm [Member]
       
Noncontrolling Interest [Line Items]        
Expenses incurred 500,000   1,000,000  
Development cost   600,000   600,000
Cumulative losses $ 2,900,000   $ 2,900,000