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Employee Benefits (Schedule of Amounts Recognized in Accumulated Other Comprehensive Income) (Details) (USD $)
In Thousands, unless otherwise specified
Oct. 31, 2012
Oct. 31, 2011
Oct. 31, 2010
Compensation and Retirement Disclosure [Abstract]      
Net transition obligation $ 0 $ 20 $ 41
Prior service cost 53 77 102
Net loss 34,957 20,134 15,459
Accumulated other comprehensive income $ 35,010 $ 20,231 $ 15,602