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Income Taxes - Components of Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands | Oct. 31, 2016 | Oct. 31, 2015
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Deferred Tax Assets, Gross [Abstract] |  |
Accruals and reserves | $ 34,324 | $ 40,373
Deferred revenue | 42,497 | 36,460
Deferred compensation | 64,321 | 69,716
Capitalized costs | 54,123 | 60,998
Capitalized research and development costs | 18,896 | 24,748
Stock compensation | 22,298 | 18,001
Tax loss carryovers | 31,748 | 50,987
Foreign tax credit carryovers | 10,369 | 1,064
Research and other tax credit carryovers | 136,690 | 80,327
Other | 5,161 | 5,340
Gross deferred tax assets | 420,427 | 388,014
Valuation allowance | (73,909) | (48,700)
Total deferred tax assets | 346,518 | 339,314
Deferred Tax Liabilities, Gross [Abstract] |  |
Intangible assets | 54,604 | 66,345
Undistributed earnings of foreign subsidiaries | 10,888 | 933
Total deferred tax liabilities | 65,492 | 67,278
Net deferred tax assets | $ 281,026 | $ 272,036

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