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Financial Assets and Liabilities - Investments Maturity Table (Details) $ in Thousands	Oct. 31, 2016 USD ($)
Available-for-Amortized Cost
Due in 1 year or less	$ 94,439
Due in 2-5 years	46,200
Due in 6-10 years	37
Total	140,676
Fair Value
Due in 1 year or less	94,439
Due in 2-5 years	46,219
Due in 6-10 years	37
Total	$ 140,695

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