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BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Detail) $ in Millions	Oct. 31, 2018 USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Adoption of ASU 2016-16, reclassification	$ 2.1
Prepaid Expenses | Accounting Standards Update 2016-16
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Adoption of ASU 2016-16, reclassification	15.1
Deferred Tax Assets | Accounting Standards Update 2016-16
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Adoption of ASU 2016-16, reclassification	(13.0)
Retained Earnings | Accounting Standards Update 2016-16
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Adoption of ASU 2016-16, reclassification	$ 2.1

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