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Stock Based Benefit Plans (Details 2)
9 Months Ended
Jul. 31, 2011
Stock Based Benefit Plans (Textuals) [Abstract]  
Percentage increases over closing price 30.00%
Performance Based Restricted Stock Units
 
Additional Stock Based Benefit Plans (Textuals) [Abstract]  
Average closing price of company common stock measured over any 20 consecutive trading days ending on or prior to 5 years from date of issuance
Non Performance Based Restricted Stock Units
 
Additional Stock Based Benefit Plans (Textuals) [Abstract]  
RSU vesting period 4 years