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Equity Earnings of Unconsolidated Affiliates, Net of Tax and Net Income Attributable to Noncontrolling Interests - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Jan. 31, 2013
Jan. 31, 2012
Noncontrolling Interest [Line Items]    
Equity earnings of affiliates $ 0.1 $ 0
Principal balance of loan made to an entity deemed VIE 22.2  
Outstanding amount of loan 16.7  
Net income attributable to noncontrolling interests $ 1.3 $ 1.1
Minimum [Member]
   
Noncontrolling Interest [Line Items]    
Percentage of investments in affiliates in which Company have non controlling interest 20.00%  
Number of affiliates in which Company has equity interest 6