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Unaudited Condensed Consolidated Balance Sheets (Parenthetical) (USD $)
Jul. 31, 2014
Oct. 31, 2013
Statement of Financial Position [Abstract]    
Preferred Stock, par value $ 0.01 $ 0.01 [1]
Preferred Stock, shares authorized 2,000,000 2,000,000 [1]
Preferred Stock, shares outstanding       [1]
Common Stock, par value $ 0.01 $ 0.01 [1]
Common Stock, shares authorized 400,000,000 400,000,000 [1]
Common Stock, shares outstanding 155,638,000 154,169,000 [1]
Treasury stock, shares 1,626,000 3,095,000 [1]
[1] Derived from audited financial statements.