ACQUISITIONS (Total Consideration) (Details) - USD ($) $ in Thousands	6 Months Ended
Apr. 30, 2019	Apr. 30, 2018
Business Acquisition [Line Items]
Cash paid, net	$ 134,940	$ 39,364
FY2019 Acquisition [Member]
Business Acquisition [Line Items]
Cash paid	136,169
Less: cash acquired	(1,229)
Cash paid, net	134,940
Contingent consideration	2,107
Fair value of existing equity interest	1,416
Additional purchase consideration	(323)
Total consideration	$ 138,140

Estimated cash outflow (inflow) representing an adjustment to the purchase price as of the acquisition date.

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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.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Amount of liabilities incurred by the acquirer as part of consideration transferred in a business combination.

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Fair value at acquisition-date of the equity interest in the acquiree held by the acquirer, immediately before the acquisition date for businesses combined in stages.

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The cash inflow associated with the acquisition of business during the period (for example, cash that was held by the acquired business).

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.

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