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Intangible Assets (Narrative) (Details) (USD $)
6 Months Ended
Apr. 30, 2015
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill, Impairment Loss $ 0us-gaap_GoodwillImpairmentLoss
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]  
2015 50,700,000us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear
2016 48,100,000us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo
2017 44,800,000us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree
2018 42,900,000us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour
2019 $ 40,200,000us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive