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Employee Benefits (Narrative) (Details) (USD $)
12 Months Ended 12 Months Ended 12 Months Ended
Oct. 31, 2012
Oct. 31, 2011
Oct. 31, 2010
Nov. 02, 2012
Subsequent Event [Member]
Oct. 31, 2012
Subsequent Event [Member]
Oct. 31, 2012
Minimum [Member]
Oct. 31, 2012
Minimum [Member]
Equity Securities [Member]
Oct. 31, 2012
Maximum [Member]
Oct. 31, 2012
Maximum [Member]
Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]                  
Estimated net loss in the next fiscal year $ 2,011,000                
Estimated net transition obligation in the next fiscal year 0                
Estimated prior service cost in the next fiscal year 24,208                
Discount rate for determining benefit obligations at year end 3.75% 4.75% 5.50%            
Projected defined benefit plan benefit obligation 74,800,000                
Estimated accumulated benefit obligation 66,200,000                
Diversified portfolio, allocation of assets in equities 100.00% 100.00% 100.00%       50.00%   80.00%
Expected long-term return on diversifed portfolio       8.00% 8.50%        
Company's contribution to the pension plan 5,226,000 5,620,000 3,764,000            
Expected future contribution in pension plan 6,200,000                
Elective deferral contribution percentage           1.00%   75.00%  
Deferral contributions, net of forfeiture credits $ 2,900,000 $ 2,400,000 $ 2,100,000