Acquisitions - Accutron (Details) - USD ($) $ in Thousands		12 Months Ended
Aug. 01, 2016	Jul. 31, 2017
Accutron
Business Acquisition [Line Items]
Total consideration for the transaction, excluding acquisition-related costs	$ 53,049	$ 53,049

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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