Commitments and Contingencies (Details 3) $ in Thousands	Oct. 31, 2017 USD ($)
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
Operating Leases, Future Minimum Payments Due, Next Twelve Months	$ 12,081
Operating Leases, Future Minimum Payments, Due in Two Years	9,747
Operating Leases, Future Minimum Payments, Due in Three Years	5,097
Operating Leases, Future Minimum Payments, Due in Four Years	3,570
Operating Leases, Future Minimum Payments, Due in Five Years	1,980
Operating Leases, Future Minimum Payments, Due Thereafter	544
Operating Leases, Future Minimum Payments Due	$ 33,019