XML 41 R40.htm IDEA: XBRL DOCUMENT v2.4.0.8
Fair Value Measures - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Jan. 31, 2014
Jan. 31, 2013
Oct. 31, 2013
Fair Value Measures [Line Items]      
Contingent consideration $ 0.5   $ 0.5
Other-than-temporary impairment 0 0  
Non-marketable equity securities 11.0   11.5
Proceeds from liquidation of investments 6.6    
Cost basis of investment sold 0.2    
Cost Method Investments
     
Fair Value Measures [Line Items]      
Non-marketable equity securities 6.7   6.9
Equity Method Investments
     
Fair Value Measures [Line Items]      
Non-marketable equity securities 4.3   4.6
Other Income Expense Net
     
Fair Value Measures [Line Items]      
Gain from liquidation of investment $ 6.4