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Accrued Severance Expense	9 Months Ended
Accrued Severance Expense	Apr. 30, 2017
Accrued Severance Expense [Abstract]
Accrued Severance Expense	Note 10—Accrued Severance Expense In July 2016, the Company completed a reduction of its workforce and incurred severance expense of $6.3 million in fiscal 2016. At April 30, 2017 and July 31, 2016, there was accrued severance of $1.2 million and $5.7 million, respectively, included in “Accrued expenses” in the accompanying consolidated balance sheets for the July 2016 workforce reduction.