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BUSINESS COMBINATIONS (Tables)	12 Months Ended
BUSINESS COMBINATIONS (Tables)	Jul. 31, 2018
Business Combinations [Abstract]
Finite-Lived and Indefinite-Lived Intangible Assets Acquired as Part of Business Combination	The purchase price allocation primarily included $11.9 million of goodwill, which is expected to be deductible for income tax purposes, and intangible assets, consisting of $16.1 million related to IPR&D, $3.6 million related to developed technology, which will be amortized over an estimated economic life of five years, and $4.6 million related to customer relationships, which will be amortized over an estimated economic life of six years.