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BUSINESS COMBINATIONS - Preliminary Aggregate Purchase Price Allocation (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Jul. 31, 2018 | Jul. 31, 2017 | Jul. 31, 2016
Business Acquisition [Line Items] |  |  |
Goodwill | $ 87,759 | $ 16,672 | $ 0
Minjar and Netsil |  |  |
Business Acquisition [Line Items] |  |  |
Goodwill | 71,087 | 16,672 |
Amortizable intangible assets | 25,920 | 28,230 |
Tangible assets acquired | 842 | 2,884 |
Liabilities assumed | (11,041) | (16,988) |
Total consideration | $ 86,808 | $ 30,798 |

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