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Earnings Per Share (Schedule of Stock Options to Purchase Common Stock Not Included in Diluted Net Income Per Share Calculation) (Details) (Stock Options [Member], USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended
Jan. 31, 2013
Jan. 31, 2012
Stock Options [Member]
   
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Numbers of stock option shares excluded 224 1,128
Lower, Range of exercise prices $ 95.74 $ 66.80
Upper, Range of exercise prices $ 102 $ 80.51