Consolidated Statements of Comprehensive Income (Parentheticals) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Oct. 31, 2011
Oct. 31, 2010
Oct. 31, 2009
Top Element 00450 Statement Consolidated Statements Of Comprehensive Income Unaudited Parentheticals [Abstract]      
Income tax expense on amortization of loss on derivatives $ 158 $ 158 $ 157
Income tax expense on unrealized holding gains on available-for-sale investments 850 517 1,941
Income tax benefit (expense) on foreign currency translation adjustments $ (56) $ 16 $ (74)