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Stock-Based Benefit Plans (Details 3) (USD $)
In Thousands, except Share data, unless otherwise specified
3 Months Ended
Jan. 31, 2014
Jan. 31, 2013
Oct. 31, 2013
Stock Price-Based RSUs issued      
Stock based expense recognized $ 7,669 $ 5,684  
Stock Price Based Restricted Stock Units [Member]
     
Stock Price-Based RSUs issued      
Stock based expense recognized 231 562  
Aggregate outstanding RSUs 0   306,000
Unamortized value of RSUs $ 0   $ 231