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Stock-Based Compensation - Stock Compensation Expense (Detail) - USD ($) $ in Thousands | 3 Months Ended
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Jan. 31, 2022 | Jan. 31, 2021
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |
Stock-based compensation expense before taxes | $ 95,771 | $ 83,782
Income tax benefit | (15,429) | (13,279)
Stock-based compensation expense after taxes | 80,342 | 70,503
Cost of products |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |
Stock-based compensation expense before taxes | 11,207 | 9,352
Cost of maintenance and service |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |
Stock-based compensation expense before taxes | 4,583 | 3,335
Research and development expense |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |
Stock-based compensation expense before taxes | 49,540 | 41,294
Sales and marketing expense |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |
Stock-based compensation expense before taxes | 17,801 | 15,159
General and administrative expense |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |
Stock-based compensation expense before taxes | $ 12,640 | $ 14,642

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