STOCK-BASED COMPENSATION - Expense And Exercises (Details) - USD ($) $ in Thousands	3 Months Ended
Jan. 27, 2019	Jan. 28, 2018
STOCK-BASED COMPENSATION
Stock-based compensation expense recognized	$ 7,900	$ 7,300
Stock-based compensation expense unrecognized	$ 37,100
Period for recognition of unrecognized stock-based compensation expense	3 years 2 months 12 days
Proceeds from exercise of stock options	$ 15,997	23,455
Stock options
STOCK-BASED COMPENSATION
Proceeds from exercise of stock options	$ 16,000	$ 23,500

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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Unrecognized cost of unvested share-based compensation awards.

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount of cash inflow from exercise of stock options granted under share-based compensation arrangement.

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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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