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Restructuring (Details) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jan. 31, 2017 USD ($) | Jan. 31, 2016 USD ($) | Oct. 31, 2016 Rate
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and Related Cost, Expected Number of Positions Eliminated |  |  | 96
Restructuring and Related Cost, Number of Positions Eliminated, Inception to Date Percent | Rate |  |  | 17.00%
Restructuring Charges | $ | $ 1,345 | $ 0 |

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- Definition Percentage of the total number of positions eliminated as of the balance sheet date since inception of the restructuring plan(s). + References No definition available. + Details
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