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Commitments and Contingencies (Details 3) (USD $)
In Thousands, unless otherwise specified
Oct. 31, 2014
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]  
Operating Leases, Future Minimum Payments Due, Next Twelve Months $ 10,216us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent
Operating Leases, Future Minimum Payments, Due in Two Years 8,191us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears
Operating Leases, Future Minimum Payments, Due in Three Years 6,596us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears
Operating Leases, Future Minimum Payments, Due in Four Years 5,316us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears
Operating Leases, Future Minimum Payments, Due in Five Years 4,013us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears
Operating Leases, Future Minimum Payments, Due Thereafter 830us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter
Operating Leases, Future Minimum Payments Due $ 35,162us-gaap_OperatingLeasesFutureMinimumPaymentsDue