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Income Taxes - Provision for Income Taxes and Effective Tax Rates (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
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Jul. 31, 2022 | Jul. 31, 2021 | Jul. 31, 2022 | Jul. 31, 2021
Income Tax Disclosure [Abstract] |  |  |  |
Income before income taxes | $ 236,354 | $ 213,337 | $ 903,385 | $ 606,436
Provision for income taxes | $ 16,708 | $ 14,945 | $ 76,506 | $ 51,214
Effective tax rate | 7.10% | 7.00% | 8.50% | 8.40%

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